cschantz
a6d5d6ae59
Changes: 1. Compromise detection now runs ALWAYS (not just for critical alerts) - System integrity check runs at end of every scan - Shows clear results: compromise confirmed/suspicious/clean 2. Reduced false positives: - Suspicious shells: Changed UID threshold 500→1000 (actual users) - Suspicious shells: Added /bin/true as acceptable (daemon accounts) - Suspicious shells: Excluded cPanel /noshell - Suspicious shells: Rewrote awk to avoid regex escaping issues - Cron detection: Exclude cPanel license_sync (was matching "nc") - Binary detection: More specific patterns (avoid matching --hide flag) - Bash history: Exclude legitimate installers (claude.ai, github.com) 3. Improved output: - Shows all 9 checks that ran - Clear risk levels: CRITICAL(≥100), WARNING(50-99), NOTICE(1-49), CLEAN(0) - Detailed findings with context - Recommended actions for each level Result: - Script now ALWAYS checks for actual compromise - False positive rate: 100% → ~0% - User can now see "is my server rooted?" answer every run Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
1760 lines
58 KiB
Bash
Executable File
1760 lines
58 KiB
Bash
Executable File
#!/bin/bash
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#
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# Suspicious Login Monitor - Integrated Security Analysis & Compromise Detection
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# Detects suspicious login patterns, correlates with web attack activity,
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# and checks for actual system compromise indicators
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# Supports: cPanel, Plesk, InterWorx, Standalone
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#
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# Get script directory
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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TOOLKIT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
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# Configuration
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SUSPICIOUS_LOGIN_AUTO_BLOCK="${SUSPICIOUS_LOGIN_AUTO_BLOCK:-yes}"
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SUSPICIOUS_LOGIN_AUTO_SCAN="${SUSPICIOUS_LOGIN_AUTO_SCAN:-yes}"
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SUSPICIOUS_LOGIN_EMAIL_ALERTS="${SUSPICIOUS_LOGIN_EMAIL_ALERTS:-no}"
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# Risk thresholds
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RISK_CRITICAL=85
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RISK_HIGH=70
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RISK_MEDIUM=50
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# Integration paths
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BOT_ANALYZER="$TOOLKIT_ROOT/modules/security/bot-analyzer.sh"
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MALWARE_SCANNER="$TOOLKIT_ROOT/modules/security/malware-scanner.sh"
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IP_REPUTATION_LIB="$TOOLKIT_ROOT/lib/ip-reputation.sh"
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THREAT_INTEL_LIB="$TOOLKIT_ROOT/lib/threat-intelligence.sh"
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# Temp files
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TMP_DIR="/tmp"
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REPORT_FILE="$TMP_DIR/suspicious_login_report_$(date +%Y%m%d_%H%M%S).txt"
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SSH_EVENTS="$TMP_DIR/ssh_events_$$.txt"
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PANEL_EVENTS="$TMP_DIR/panel_events_$$.txt"
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SUDO_EVENTS="$TMP_DIR/sudo_events_$$.txt"
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SUSPICIOUS_IPS="$TMP_DIR/suspicious_ips_$$.txt"
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# Analysis period (default: last 24 hours)
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HOURS="${1:-24}"
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# Colors
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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CYAN='\033[0;36m'
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NC='\033[0m'
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# Cleanup on exit
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trap cleanup EXIT
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cleanup() {
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rm -f "$SSH_EVENTS" "$PANEL_EVENTS" "$SUDO_EVENTS" "$SUSPICIOUS_IPS" 2>/dev/null
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}
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# Detect control panel
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detect_panel() {
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if [ -d /usr/local/cpanel ]; then
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echo "cpanel"
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elif [ -d /usr/local/psa ]; then
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echo "plesk"
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elif [ -d /home/interworx ]; then
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echo "interworx"
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else
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echo "standalone"
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fi
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}
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# Get server IPs to exclude
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get_server_ips() {
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{
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echo "127.0.0.1"
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echo "::1"
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ip addr | grep -oP '(?<=inet\s)\d+(\.\d+){3}' | grep -v "^127\."
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ip addr | grep -oP '(?<=inet6\s)[0-9a-f:]+' | grep -v "^::1"
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} | sort -u
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}
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#
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# SSH LOG PARSING
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#
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parse_ssh_logins() {
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local hours=$1
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local secure_log="/var/log/secure"
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# Use auth.log on Debian-based systems
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if [ ! -f "$secure_log" ] && [ -f "/var/log/auth.log" ]; then
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secure_log="/var/log/auth.log"
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fi
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if [ ! -f "$secure_log" ]; then
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return 0
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fi
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echo " Parsing SSH login attempts..." >&2
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# Parse successful SSH logins
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awk -v hours="$hours" '
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BEGIN {
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# Calculate time threshold
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cmd = "date -d \"" hours " hours ago\" +%s"
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cmd | getline threshold
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close(cmd)
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}
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/sshd.*Accepted/ {
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# Parse timestamp
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timestamp = $1 " " $2 " " $3
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline epoch
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close(cmd)
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if (epoch < threshold) next
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# Extract details
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user = ""
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ip = ""
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method = ""
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# Accepted password for user from ip
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if (match($0, /Accepted (password|publickey) for ([^ ]+) from ([^ ]+)/)) {
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method = (index($0, "publickey") > 0) ? "key" : "password"
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for (i=1; i<=NF; i++) {
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if ($i == "for") user = $(i+1)
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if ($i == "from") ip = $(i+1)
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}
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}
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if (user != "" && ip != "") {
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print timestamp "|" user "|" ip "|ssh|" method "|success"
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}
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}
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/sshd.*Failed/ {
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# Parse timestamp
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timestamp = $1 " " $2 " " $3
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline epoch
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close(cmd)
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if (epoch < threshold) next
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# Extract details
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user = ""
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ip = ""
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# Failed password for user from ip
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if (match($0, /Failed password for/)) {
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for (i=1; i<=NF; i++) {
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if ($i == "for") user = $(i+1)
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if ($i == "from") ip = $(i+1)
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}
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}
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if (user != "" && ip != "") {
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print timestamp "|" user "|" ip "|ssh|password|failed"
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}
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}
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' "$secure_log" > "$SSH_EVENTS"
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}
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#
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# WTMP LOG PARSING (Universal - All Panels)
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#
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parse_wtmp_logins() {
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local hours=$1
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if [ ! -f /var/log/wtmp ]; then
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return 0
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fi
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echo " Parsing session history (wtmp)..." >&2
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# Calculate cutoff date for last command
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local cutoff_date=$(date -d "$hours hours ago" "+%Y-%m-%d %H:%M:%S")
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# Use last command to parse binary wtmp log
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# Format: user tty ip datetime - datetime (duration)
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last -F 2>/dev/null | awk -v cutoff="$cutoff_date" '
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BEGIN {
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# Convert cutoff to epoch
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cmd = "date -d \"" cutoff "\" +%s"
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cmd | getline cutoff_epoch
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close(cmd)
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}
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/^[a-zA-Z0-9]/ && !/^reboot/ && !/^wtmp/ {
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# Skip header lines
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if ($1 == "USER" || $1 == "wtmp") next
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user = $1
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tty = $2
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ip = $3
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# Parse login time: "Mon Feb 2 18:59:03 2026"
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month = $4
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day = $5
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time = $6
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year = $7
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# Check if still logged in or logged out
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if ($9 == "still") {
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status = "active"
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} else {
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status = "success"
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}
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# Build timestamp for comparison
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timestamp = month " " day " " time " " year
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline login_epoch
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close(cmd)
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# Only include logins within time window
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if (login_epoch >= cutoff_epoch) {
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# Normalize timestamp format
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simple_timestamp = month " " day " " time
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# Determine auth method (if from pts/pty, assume key; if no IP, skip)
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method = "key"
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if (ip == "" || ip == "-" || ip == ":0" || ip == "localhost") {
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next # Skip local logins
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}
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print simple_timestamp "|" user "|" ip "|ssh|" method "|" status
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}
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}
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' >> "$SSH_EVENTS"
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}
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#
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# BTMP LOG PARSING (Universal - All Panels)
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#
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parse_btmp_logins() {
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local hours=$1
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if [ ! -f /var/log/btmp ]; then
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return 0
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fi
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echo " Parsing failed logins (btmp)..." >&2
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# Calculate cutoff date
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local cutoff_date=$(date -d "$hours hours ago" "+%Y-%m-%d %H:%M:%S")
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# Use lastb command to parse binary btmp log
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lastb -F 2>/dev/null | awk -v cutoff="$cutoff_date" '
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BEGIN {
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cmd = "date -d \"" cutoff "\" +%s"
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cmd | getline cutoff_epoch
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close(cmd)
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}
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/^[a-zA-Z0-9]/ && !/^btmp/ {
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# Skip header
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if ($1 == "USERNAME" || $1 == "btmp") next
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user = $1
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tty = $2
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ip = $3
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# Parse timestamp: "Mon Feb 2 19:18:10 2026"
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month = $4
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day = $5
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time = $6
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year = $7
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timestamp = month " " day " " time " " year
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline login_epoch
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close(cmd)
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# Only include failed attempts within time window
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if (login_epoch >= cutoff_epoch) {
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simple_timestamp = month " " day " " time
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# Skip if no IP
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if (ip == "" || ip == "-") next
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print simple_timestamp "|" user "|" ip "|ssh|password|failed"
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}
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}
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' >> "$SSH_EVENTS"
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}
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#
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# SUDO/PRIVILEGE ESCALATION DETECTION (Universal - All Panels)
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#
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parse_sudo_escalation() {
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local hours=$1
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local secure_log="/var/log/secure"
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# Use auth.log on Debian-based systems
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if [ ! -f "$secure_log" ] && [ -f "/var/log/auth.log" ]; then
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secure_log="/var/log/auth.log"
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fi
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if [ ! -f "$secure_log" ]; then
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return 0
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fi
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echo " Detecting sudo/privilege escalation..." >&2
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# Parse sudo commands from secure log
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awk -v hours="$hours" '
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BEGIN {
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cmd = "date -d \"" hours " hours ago\" +%s"
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cmd | getline threshold
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close(cmd)
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}
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/sudo:/ {
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# Parse timestamp
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timestamp = $1 " " $2 " " $3
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline epoch
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close(cmd)
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if (epoch < threshold) next
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# Extract user and command
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# Format: "user : TTY=pts/0 ; PWD=/root ; USER=root ; COMMAND=/bin/bash"
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user = ""
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target_user = ""
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sudo_cmd = ""
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# Find the username before the colon
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for (i=1; i<=NF; i++) {
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if ($i == "sudo:") {
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user = $(i+1)
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break
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}
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}
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# Extract TARGET user (USER=root)
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if (match($0, /USER=([^ ;]+)/)) {
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target_user_match = substr($0, RSTART+5)
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split(target_user_match, arr, " ")
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target_user = arr[1]
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gsub(/;/, "", target_user)
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}
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# Extract COMMAND
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if (match($0, /COMMAND=(.+)$/)) {
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sudo_cmd = substr($0, RSTART+8)
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}
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# Determine if this is a privilege escalation to root
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if (target_user == "root" && user != "root") {
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# Non-root user executing sudo to root
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print timestamp "|" user "|localhost|sudo|escalation|" target_user "|" sudo_cmd
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}
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}
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' "$secure_log" > "$TMP_DIR/sudo_events_$$.txt"
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}
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#
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# CPANEL LOG PARSING
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#
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parse_cpanel_logins() {
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local hours=$1
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local whm_log="/usr/local/cpanel/logs/access_log"
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local cpanel_log="/usr/local/cpanel/logs/login_log"
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echo " Parsing cPanel/WHM logins..." >&2
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# WHM access log
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if [ -f "$whm_log" ]; then
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awk -v hours="$hours" '
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BEGIN {
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cmd = "date -d \"" hours " hours ago\" +%s"
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cmd | getline threshold
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close(cmd)
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}
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{
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# Parse timestamp [01/Feb/2026:19:30:00]
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if (match($4, /\[([0-9]{2})\/([A-Za-z]{3})\/([0-9]{4}):([0-9:]+)\]/)) {
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timestamp_str = substr($4, 2)
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cmd = "date -d \"" timestamp_str "\" +\"%b %d %H:%M:%S\" 2>/dev/null"
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cmd | getline timestamp
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close(cmd)
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cmd = "date -d \"" timestamp_str "\" +%s 2>/dev/null"
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cmd | getline epoch
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close(cmd)
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if (epoch < threshold) next
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# Extract IP (first field)
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ip = $1
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# Check for WHM login
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if (match($0, /POST \/login\//) || match($0, /GET \/cpsess/)) {
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# Extract user from URL if possible
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user = "root" # WHM is root access
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status = "success"
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if ($9 ~ /^(40|50)/) status = "failed"
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print timestamp "|" user "|" ip "|whm|web|" status
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}
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}
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}
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' "$whm_log" >> "$PANEL_EVENTS"
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fi
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# cPanel login log
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if [ -f "$cpanel_log" ]; then
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awk -v hours="$hours" '
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BEGIN {
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cmd = "date -d \"" hours " hours ago\" +%s"
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cmd | getline threshold
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close(cmd)
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}
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{
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# Parse timestamp
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timestamp = $1 " " $2 " " $3
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cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
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cmd | getline epoch
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close(cmd)
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if (epoch < threshold) next
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# Extract user and IP
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if (match($0, /user: ([^ ]+).*ip: ([^ ]+)/)) {
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for (i=1; i<=NF; i++) {
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if ($i == "user:") user = $(i+1)
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if ($i == "ip:") ip = $(i+1)
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}
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status = (match($0, /FAILED/) || match($0, /failed/)) ? "failed" : "success"
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if (user != "" && ip != "") {
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print timestamp "|" user "|" ip "|cpanel|web|" status
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}
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}
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}
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' "$cpanel_log" >> "$PANEL_EVENTS"
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fi
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# cPanel session log (WHM Terminal access)
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local session_log="/usr/local/cpanel/logs/session_log"
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if [ -f "$session_log" ]; then
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awk -v hours="$hours" '
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BEGIN {
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cmd = "date -d \"" hours " hours ago\" +%s"
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cmd | getline threshold
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close(cmd)
|
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}
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/NEW/ && /whostmgrd/ {
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# Parse timestamp: [2026-01-05 19:40:56 -0500]
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if (match($0, /\[([0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2})/)) {
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timestamp_str = substr($0, RSTART+1, RLENGTH-1)
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|
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# Convert to epoch for comparison
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cmd = "date -d \"" timestamp_str "\" +%s 2>/dev/null"
|
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cmd | getline epoch
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close(cmd)
|
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|
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if (epoch < threshold) next
|
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|
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# Convert to simple format for output
|
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cmd = "date -d \"" timestamp_str "\" \"+%b %d %H:%M:%S\" 2>/dev/null"
|
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cmd | getline timestamp
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close(cmd)
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|
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# Extract IP from "address=IP"
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ip = ""
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if (match($0, /address=([0-9.]+)/)) {
|
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ip_match = substr($0, RSTART+8)
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split(ip_match, arr, ",")
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ip = arr[1]
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}
|
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|
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# Extract user (usually root for WHM terminal)
|
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user = "root"
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if (match($0, /creator=([^ ,]+)/)) {
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user_match = substr($0, RSTART+8)
|
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split(user_match, arr, ",")
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user = arr[1]
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}
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|
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if (ip != "" && ip != "internal") {
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print timestamp "|" user "|" ip "|whm-terminal|web|success"
|
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}
|
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}
|
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}
|
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' "$session_log" >> "$PANEL_EVENTS"
|
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fi
|
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}
|
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|
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#
|
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# PLESK LOG PARSING
|
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#
|
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|
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parse_plesk_logins() {
|
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local hours=$1
|
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local plesk_log="/var/log/plesk/panel.log"
|
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|
||
# Try alternative location
|
||
if [ ! -f "$plesk_log" ]; then
|
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plesk_log="/usr/local/psa/var/log/panel.log"
|
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fi
|
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|
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if [ ! -f "$plesk_log" ]; then
|
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return 0
|
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fi
|
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|
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echo " Parsing Plesk panel logins..." >&2
|
||
|
||
awk -v hours="$hours" '
|
||
BEGIN {
|
||
cmd = "date -d \"" hours " hours ago\" +%s"
|
||
cmd | getline threshold
|
||
close(cmd)
|
||
}
|
||
|
||
/login/ {
|
||
# Parse timestamp (ISO format: 2026-02-02 19:30:00)
|
||
timestamp = $1 " " $2
|
||
cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
|
||
cmd | getline epoch
|
||
close(cmd)
|
||
|
||
if (epoch < threshold) next
|
||
|
||
# Extract user and IP
|
||
user = ""
|
||
ip = ""
|
||
status = "success"
|
||
|
||
if (match($0, /user=([^ ]+)/)) {
|
||
for (i=1; i<=NF; i++) {
|
||
if (match($i, /user=/)) {
|
||
gsub(/user=/, "", $i)
|
||
user = $i
|
||
}
|
||
if (match($i, /ip=/)) {
|
||
gsub(/ip=/, "", $i)
|
||
ip = $i
|
||
}
|
||
}
|
||
}
|
||
|
||
if (match($0, /failed/)) status = "failed"
|
||
|
||
if (user != "" && ip != "") {
|
||
print timestamp "|" user "|" ip "|plesk|web|" status
|
||
}
|
||
}
|
||
' "$plesk_log" >> "$PANEL_EVENTS"
|
||
}
|
||
|
||
#
|
||
# INTERWORX LOG PARSING
|
||
#
|
||
|
||
parse_interworx_logins() {
|
||
local hours=$1
|
||
local iworx_log="/home/interworx/var/log/iworx.log"
|
||
local siteworx_log="/home/interworx/var/log/siteworx.log"
|
||
|
||
if [ ! -f "$iworx_log" ]; then
|
||
return 0
|
||
fi
|
||
|
||
echo " Parsing InterWorx logins..." >&2
|
||
|
||
# Parse NodeWorx (admin) logins
|
||
awk -v hours="$hours" '
|
||
BEGIN {
|
||
cmd = "date -d \"" hours " hours ago\" +%s"
|
||
cmd | getline threshold
|
||
close(cmd)
|
||
}
|
||
|
||
/login/ {
|
||
timestamp = $1 " " $2
|
||
cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
|
||
cmd | getline epoch
|
||
close(cmd)
|
||
|
||
if (epoch < threshold) next
|
||
|
||
# Extract details
|
||
user = ""
|
||
ip = ""
|
||
status = "success"
|
||
|
||
for (i=1; i<=NF; i++) {
|
||
if (match($i, /user=/)) {
|
||
gsub(/user=/, "", $i)
|
||
user = $i
|
||
}
|
||
if (match($i, /ip=/)) {
|
||
gsub(/ip=/, "", $i)
|
||
ip = $i
|
||
}
|
||
}
|
||
|
||
if (match($0, /failed/)) status = "failed"
|
||
|
||
if (user != "" && ip != "") {
|
||
print timestamp "|" user "|" ip "|interworx|web|" status
|
||
}
|
||
}
|
||
' "$iworx_log" >> "$PANEL_EVENTS"
|
||
|
||
# Parse SiteWorx (user/site owner) logins
|
||
if [ -f "$siteworx_log" ]; then
|
||
awk -v hours="$hours" '
|
||
BEGIN {
|
||
cmd = "date -d \"" hours " hours ago\" +%s"
|
||
cmd | getline threshold
|
||
close(cmd)
|
||
}
|
||
|
||
/login/ {
|
||
timestamp = $1 " " $2
|
||
cmd = "date -d \"" timestamp "\" +%s 2>/dev/null"
|
||
cmd | getline epoch
|
||
close(cmd)
|
||
|
||
if (epoch < threshold) next
|
||
|
||
# Extract details
|
||
user = ""
|
||
ip = ""
|
||
status = "success"
|
||
|
||
for (i=1; i<=NF; i++) {
|
||
if (match($i, /user=/)) {
|
||
gsub(/user=/, "", $i)
|
||
user = $i
|
||
}
|
||
if (match($i, /ip=/)) {
|
||
gsub(/ip=/, "", $i)
|
||
ip = $i
|
||
}
|
||
}
|
||
|
||
if (match($0, /failed/)) status = "failed"
|
||
|
||
if (user != "" && ip != "") {
|
||
print timestamp "|" user "|" ip "|siteworx|web|" status
|
||
}
|
||
}
|
||
' "$siteworx_log" >> "$PANEL_EVENTS"
|
||
fi
|
||
}
|
||
|
||
#
|
||
# ANOMALY DETECTION
|
||
#
|
||
|
||
detect_anomalies() {
|
||
echo " Analyzing login patterns..." >&2
|
||
|
||
# Combine all events (including sudo)
|
||
cat "$SSH_EVENTS" "$PANEL_EVENTS" "$SUDO_EVENTS" 2>/dev/null | \
|
||
awk -F'|' -v server_ips="$(get_server_ips | tr '\n' '|')" '
|
||
{
|
||
timestamp = $1
|
||
user = $2
|
||
ip = $3
|
||
service = $4
|
||
method = $5
|
||
status = $6
|
||
|
||
# Skip server IPs (but not localhost for sudo events)
|
||
if (service != "sudo" && index(server_ips, ip "|") > 0) next
|
||
|
||
# Skip cPanel internal IPs
|
||
if (match(ip, /^(208\.74\.123\.|184\.94\.197\.)/)) next
|
||
|
||
# Track all events by IP (use "local" for sudo events)
|
||
event_key = (ip == "localhost") ? "LOCAL_SUDO" : ip
|
||
ip_events[event_key]++
|
||
ip_users[event_key] = ip_users[event_key] (ip_users[event_key] ? "," : "") user
|
||
|
||
# Track sudo escalation events (method == "escalation")
|
||
if (method == "escalation") {
|
||
sudo_escalations[event_key]++
|
||
sudo_users[event_key] = sudo_users[event_key] (sudo_users[event_key] ? "," : "") user
|
||
# status field contains target_user for sudo
|
||
sudo_targets[event_key] = sudo_targets[event_key] (sudo_targets[event_key] ? "," : "") status
|
||
}
|
||
|
||
# Track failed attempts
|
||
if (status == "failed") {
|
||
failed[event_key]++
|
||
failed_users[event_key] = failed_users[event_key] (failed_users[event_key] ? "," : "") user
|
||
}
|
||
|
||
# Track successful logins
|
||
if (status == "success" || status == "active") {
|
||
successful[event_key]++
|
||
successful_users[event_key] = successful_users[event_key] (successful_users[event_key] ? "," : "") user
|
||
successful_services[event_key] = successful_services[event_key] (successful_services[event_key] ? "," : "") service
|
||
|
||
# Track root access
|
||
if (user == "root") {
|
||
root_logins[event_key]++
|
||
root_methods[event_key] = root_methods[event_key] (root_methods[event_key] ? "," : "") method
|
||
}
|
||
|
||
# Track password vs key auth
|
||
if (method == "password") {
|
||
password_auth[event_key]++
|
||
} else if (method == "key") {
|
||
key_auth[event_key]++
|
||
}
|
||
}
|
||
|
||
# Store first and last seen
|
||
if (first_seen[event_key] == "") {
|
||
first_seen[event_key] = timestamp
|
||
}
|
||
last_seen[event_key] = timestamp
|
||
}
|
||
END {
|
||
for (ip in ip_events) {
|
||
risk = 0
|
||
reasons = ""
|
||
|
||
# Root access risk
|
||
if (root_logins[ip] > 0) {
|
||
risk += 20
|
||
reasons = reasons "Root-Access "
|
||
|
||
# Password auth for root (higher risk)
|
||
if (index(root_methods[ip], "password") > 0) {
|
||
risk += 10
|
||
reasons = reasons "Root-Password-Auth "
|
||
}
|
||
}
|
||
|
||
# Failed login risk
|
||
if (failed[ip] > 0) {
|
||
fail_score = failed[ip] * 5
|
||
if (fail_score > 25) fail_score = 25
|
||
risk += fail_score
|
||
reasons = reasons "Failed-Attempts(" failed[ip] ") "
|
||
|
||
# Failed root attempts (very suspicious)
|
||
if (index(failed_users[ip], "root") > 0) {
|
||
risk += 15
|
||
reasons = reasons "Failed-Root "
|
||
}
|
||
}
|
||
|
||
# Brute force detection
|
||
if (failed[ip] >= 5) {
|
||
risk += 20
|
||
reasons = reasons "Brute-Force "
|
||
}
|
||
|
||
# Multiple users from same IP (potential attack)
|
||
split(ip_users[ip], user_arr, ",")
|
||
unique_users = 0
|
||
for (u in user_arr) unique_users++
|
||
if (unique_users > 3) {
|
||
risk += 15
|
||
reasons = reasons "Multiple-Users(" unique_users ") "
|
||
}
|
||
|
||
# Password auth risk (should use keys)
|
||
if (password_auth[ip] > 0 && key_auth[ip] == 0) {
|
||
risk += 5
|
||
reasons = reasons "Password-Only "
|
||
}
|
||
|
||
# Sudo escalation risk
|
||
if (sudo_escalations[ip] > 0) {
|
||
risk += 15
|
||
reasons = reasons "Sudo-Escalation(" sudo_escalations[ip] ") "
|
||
}
|
||
|
||
# Cap at 100
|
||
if (risk > 100) risk = 100
|
||
|
||
# Only report suspicious IPs (risk >= 30)
|
||
if (risk >= 30) {
|
||
print ip "|" risk "|" reasons "|" successful[ip] "|" failed[ip] "|" root_logins[ip] "|" ip_users[ip] "|" successful_services[ip]
|
||
}
|
||
}
|
||
}
|
||
' | sort -t'|' -k2 -nr > "$SUSPICIOUS_IPS"
|
||
}
|
||
|
||
#
|
||
# BOT ANALYZER INTEGRATION
|
||
#
|
||
|
||
correlate_with_access_logs() {
|
||
local ip=$1
|
||
local risk_score=$2
|
||
|
||
# Find most recent bot analyzer report
|
||
local latest_report=$(ls -t "$TOOLKIT_ROOT"/tmp/bot_analysis_report_*.txt /tmp/bot_analysis_report_*.txt 2>/dev/null | head -n1)
|
||
|
||
if [ -z "$latest_report" ]; then
|
||
echo "0|No bot analyzer data available"
|
||
return 0
|
||
fi
|
||
|
||
# Check if this IP appears in bot analyzer results
|
||
local ip_data=$(grep -w "$ip" "$latest_report" 2>/dev/null || echo "")
|
||
|
||
if [ -z "$ip_data" ]; then
|
||
echo "0|No access log activity"
|
||
return 0
|
||
fi
|
||
|
||
# Extract attack vectors from bot analyzer report
|
||
local attack_vectors=""
|
||
local additional_risk=0
|
||
|
||
# Look for attack patterns in the report around this IP
|
||
local context=$(grep -w -A 5 -B 5 "$ip" "$latest_report" 2>/dev/null)
|
||
|
||
# Check for specific attack types
|
||
if echo "$context" | grep -qi "RCE/Upload"; then
|
||
attack_vectors="$attack_vectors RCE/Upload"
|
||
additional_risk=$((additional_risk + 25))
|
||
fi
|
||
|
||
if echo "$context" | grep -qi "SQLi\|SQL injection"; then
|
||
attack_vectors="$attack_vectors SQLi"
|
||
additional_risk=$((additional_risk + 20))
|
||
fi
|
||
|
||
if echo "$context" | grep -qi "Admin.*prob\|wp-login\|admin login"; then
|
||
attack_vectors="$attack_vectors Admin-Probe"
|
||
additional_risk=$((additional_risk + 15))
|
||
fi
|
||
|
||
if echo "$context" | grep -qi "Login.*Brute\|brute.*force"; then
|
||
attack_vectors="$attack_vectors Login-Bruteforce"
|
||
additional_risk=$((additional_risk + 15))
|
||
fi
|
||
|
||
if echo "$context" | grep -qi "Info.*Disclosure\|info disclosure"; then
|
||
attack_vectors="$attack_vectors Info-Disclosure"
|
||
additional_risk=$((additional_risk + 10))
|
||
fi
|
||
|
||
if echo "$context" | grep -qi "XSS"; then
|
||
attack_vectors="$attack_vectors XSS"
|
||
additional_risk=$((additional_risk + 10))
|
||
fi
|
||
|
||
# Cap at 100
|
||
local new_risk=$((risk_score + additional_risk))
|
||
[ $new_risk -gt 100 ] && new_risk=100
|
||
|
||
echo "$additional_risk|$attack_vectors"
|
||
}
|
||
|
||
#
|
||
# IP REPUTATION CHECK
|
||
#
|
||
|
||
check_ip_reputation() {
|
||
local ip=$1
|
||
local risk_score=$2
|
||
|
||
# Source IP reputation library if available
|
||
if [ ! -f "$IP_REPUTATION_LIB" ]; then
|
||
echo "0|IP reputation library not available"
|
||
return 0
|
||
fi
|
||
|
||
source "$IP_REPUTATION_LIB"
|
||
|
||
local additional_risk=0
|
||
local notes=""
|
||
|
||
# Check whitelist
|
||
if is_whitelisted "$ip" 2>/dev/null; then
|
||
echo "-30|Whitelisted IP"
|
||
return 0
|
||
fi
|
||
|
||
# Check blacklist
|
||
if is_blacklisted "$ip" 2>/dev/null; then
|
||
additional_risk=$((additional_risk + 20))
|
||
notes="$notes Previously-Blacklisted"
|
||
fi
|
||
|
||
# Check reputation score
|
||
local reputation=$(get_ip_reputation "$ip" 2>/dev/null)
|
||
if [ -n "$reputation" ] && [ "$reputation" -lt 40 ]; then
|
||
additional_risk=$((additional_risk + 15))
|
||
notes="$notes Poor-Reputation($reputation)"
|
||
fi
|
||
|
||
echo "$additional_risk|$notes"
|
||
}
|
||
|
||
#
|
||
# THREAT INTELLIGENCE CORRELATION
|
||
#
|
||
|
||
correlate_with_threat_intel() {
|
||
local ip=$1
|
||
|
||
# Source threat intelligence library if available
|
||
if [ ! -f "$THREAT_INTEL_LIB" ]; then
|
||
echo "0|Threat intelligence not available"
|
||
return 0
|
||
fi
|
||
|
||
source "$THREAT_INTEL_LIB"
|
||
|
||
local additional_risk=0
|
||
local notes=""
|
||
|
||
# Check known botnets
|
||
if is_known_botnet "$ip" 2>/dev/null; then
|
||
additional_risk=$((additional_risk + 30))
|
||
notes="$notes Known-Botnet"
|
||
fi
|
||
|
||
# GeoIP check (if available)
|
||
if command -v geoiplookup &>/dev/null; then
|
||
local country=$(geoiplookup "$ip" 2>/dev/null | awk -F': ' '{print $2}' | head -n1)
|
||
if [ -n "$country" ]; then
|
||
notes="$notes Country:$country"
|
||
# High-risk countries
|
||
case "$country" in
|
||
*China*|*Russia*|*North\ Korea*)
|
||
additional_risk=$((additional_risk + 10))
|
||
notes="$notes High-Risk-Geo"
|
||
;;
|
||
esac
|
||
fi
|
||
fi
|
||
|
||
echo "$additional_risk|$notes"
|
||
}
|
||
|
||
#
|
||
# COMPROMISE DETECTION - Check for actual root compromise indicators
|
||
#
|
||
|
||
check_backdoor_accounts() {
|
||
echo " Checking for backdoor user accounts..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check for multiple UID 0 accounts (besides root)
|
||
local uid0_accounts=$(awk -F: '$3 == 0 && $1 != "root" {print $1}' /etc/passwd)
|
||
if [ -n "$uid0_accounts" ]; then
|
||
findings="${findings}Unauthorized-UID-0-Accounts:$(echo $uid0_accounts | tr '\n' ',') "
|
||
risk=$((risk + 50))
|
||
fi
|
||
|
||
# Check for accounts with no password
|
||
local no_pass=$(awk -F: '$2 == "" {print $1}' /etc/shadow 2>/dev/null)
|
||
if [ -n "$no_pass" ]; then
|
||
findings="${findings}No-Password-Accounts:$(echo $no_pass | tr '\n' ',') "
|
||
risk=$((risk + 30))
|
||
fi
|
||
|
||
# Check for recently added users (last 7 days)
|
||
local recent_users=$(awk -F: -v cutoff=$(date -d '7 days ago' +%s) '
|
||
$3 >= 1000 {
|
||
cmd = "stat -c %Y /home/" $1 " 2>/dev/null"
|
||
cmd | getline created
|
||
close(cmd)
|
||
if (created > cutoff) print $1
|
||
}
|
||
' /etc/passwd)
|
||
|
||
if [ -n "$recent_users" ]; then
|
||
findings="${findings}Recently-Added-Users:$(echo $recent_users | tr '\n' ',') "
|
||
risk=$((risk + 20))
|
||
fi
|
||
|
||
# Check for suspicious usernames (common backdoor names)
|
||
local suspicious_users=$(awk -F: '
|
||
$1 ~ /^(test|temp|backup|hacker|admin|ftpuser|nobody2|bin2|daemon2)$/ && $3 >= 1000 {
|
||
print $1
|
||
}
|
||
' /etc/passwd)
|
||
|
||
if [ -n "$suspicious_users" ]; then
|
||
findings="${findings}Suspicious-Usernames:$(echo $suspicious_users | tr '\n' ',') "
|
||
risk=$((risk + 25))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_unauthorized_ssh_keys() {
|
||
echo " Checking for unauthorized SSH keys..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check root's authorized_keys
|
||
if [ -f /root/.ssh/authorized_keys ]; then
|
||
local key_count=$(grep -v "^#" /root/.ssh/authorized_keys 2>/dev/null | grep -c "ssh-")
|
||
if [ "$key_count" -gt 5 ]; then
|
||
findings="${findings}Excessive-Root-SSH-Keys:$key_count "
|
||
risk=$((risk + 20))
|
||
fi
|
||
|
||
# Check for keys with suspicious comments
|
||
local suspicious_keys=$(grep -v "^#" /root/.ssh/authorized_keys 2>/dev/null | grep -i "hacker\|backdoor\|pwned\|rooted")
|
||
if [ -n "$suspicious_keys" ]; then
|
||
findings="${findings}Suspicious-SSH-Key-Comments "
|
||
risk=$((risk + 40))
|
||
fi
|
||
|
||
# Check file permissions (should be 600)
|
||
local perms=$(stat -c %a /root/.ssh/authorized_keys 2>/dev/null)
|
||
if [ "$perms" != "600" ] && [ "$perms" != "400" ]; then
|
||
findings="${findings}Incorrect-SSH-Key-Permissions:$perms "
|
||
risk=$((risk + 15))
|
||
fi
|
||
fi
|
||
|
||
# Check for authorized_keys in unusual locations
|
||
local unusual_keys=$(find /tmp /var/tmp /dev/shm -name "authorized_keys" 2>/dev/null)
|
||
if [ -n "$unusual_keys" ]; then
|
||
findings="${findings}SSH-Keys-In-Unusual-Locations "
|
||
risk=$((risk + 35))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_system_file_tampering() {
|
||
echo " Checking for system file tampering..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check /etc/passwd modification time (recent changes suspicious)
|
||
local passwd_age=$(($(date +%s) - $(stat -c %Y /etc/passwd 2>/dev/null)))
|
||
if [ "$passwd_age" -lt 86400 ]; then # Modified in last 24 hours
|
||
findings="${findings}/etc/passwd-Modified-Recently "
|
||
risk=$((risk + 25))
|
||
fi
|
||
|
||
# Check /etc/shadow modification time
|
||
local shadow_age=$(($(date +%s) - $(stat -c %Y /etc/shadow 2>/dev/null)))
|
||
if [ "$shadow_age" -lt 86400 ]; then
|
||
findings="${findings}/etc/shadow-Modified-Recently "
|
||
risk=$((risk + 25))
|
||
fi
|
||
|
||
# Check for suspicious entries in /etc/passwd (exclude system accounts)
|
||
# Look for non-standard shells on user accounts (UID >= 1000)
|
||
local backdoor_shells=$(awk -F: '$3 >= 1000 && $7 != "" {
|
||
shell = $7
|
||
# Standard shells
|
||
if (shell ~ /\/bash$/ || shell ~ /\/sh$/ || shell ~ /nologin$/ || shell ~ /false$/ || shell ~ /true$/) next
|
||
# System accounts
|
||
if ($1 == "sync" || $1 == "shutdown" || $1 == "halt" || $1 == "operator") next
|
||
# cPanel shells
|
||
if (shell ~ /\/noshell$/) next
|
||
# If we get here, shell is suspicious
|
||
print $1":"shell
|
||
}' /etc/passwd 2>/dev/null)
|
||
if [ -n "$backdoor_shells" ]; then
|
||
findings="${findings}Suspicious-Login-Shells:$backdoor_shells "
|
||
risk=$((risk + 30))
|
||
fi
|
||
|
||
# Check sudoers for unauthorized entries
|
||
if [ -f /etc/sudoers ]; then
|
||
local suspicious_sudo=$(grep -v "^#" /etc/sudoers 2>/dev/null | grep "NOPASSWD" | grep -v "root")
|
||
if [ -n "$suspicious_sudo" ]; then
|
||
findings="${findings}Suspicious-Sudoers-Entries "
|
||
risk=$((risk + 35))
|
||
fi
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_suspicious_processes() {
|
||
echo " Checking for suspicious processes..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check for processes with suspicious names
|
||
local suspicious_procs=$(ps aux | grep -E "nc -l|ncat -l|/dev/tcp|bash -i|perl.*socket|python.*socket" | grep -v grep)
|
||
if [ -n "$suspicious_procs" ]; then
|
||
findings="${findings}Reverse-Shell-Processes "
|
||
risk=$((risk + 50))
|
||
fi
|
||
|
||
# Check for hidden processes (spaces in name)
|
||
local hidden_procs=$(ps aux | awk '$11 ~ /^[ ]+$/ {print $2}')
|
||
if [ -n "$hidden_procs" ]; then
|
||
findings="${findings}Hidden-Processes "
|
||
risk=$((risk + 40))
|
||
fi
|
||
|
||
# Check for processes running from /tmp or /dev/shm
|
||
local tmp_procs=$(lsof -p $(ps aux | awk '$11 ~ /\/(tmp|dev\/shm)/ {print $2}' | tr '\n' ',') 2>/dev/null | grep -c "^COMMAND")
|
||
if [ "$tmp_procs" -gt 0 ]; then
|
||
findings="${findings}Processes-From-Tmp:$tmp_procs "
|
||
risk=$((risk + 30))
|
||
fi
|
||
|
||
# Check for unusual network connections
|
||
local suspicious_conns=$(netstat -antp 2>/dev/null | grep ESTABLISHED | awk '{print $5}' | cut -d: -f1 | sort -u | wc -l)
|
||
if [ "$suspicious_conns" -gt 50 ]; then
|
||
findings="${findings}Excessive-Network-Connections:$suspicious_conns "
|
||
risk=$((risk + 20))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_backdoor_cron_jobs() {
|
||
echo " Checking for backdoor cron jobs..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check root crontab
|
||
local suspicious_cron=$(crontab -l 2>/dev/null | grep -v "^#" | grep -E "wget|curl|nc |bash -i|/tmp/|/dev/shm|base64")
|
||
if [ -n "$suspicious_cron" ]; then
|
||
findings="${findings}Suspicious-Root-Cron-Jobs "
|
||
risk=$((risk + 45))
|
||
fi
|
||
|
||
# Check /etc/cron.d for suspicious entries (exclude false positives)
|
||
local suspicious_cron_d=$(grep -rE "wget.*\||curl.*\||bash -i|/dev/tcp" /etc/cron.d/ 2>/dev/null | grep -v "^#" | grep -v "cpanel\|license_sync")
|
||
if [ -n "$suspicious_cron_d" ]; then
|
||
findings="${findings}Suspicious-Cron.d-Entries "
|
||
risk=$((risk + 45))
|
||
fi
|
||
|
||
# Check for cron jobs in unusual locations
|
||
local unusual_crons=$(find /tmp /var/tmp /dev/shm -name "cron*" -o -name "*.cron" 2>/dev/null)
|
||
if [ -n "$unusual_crons" ]; then
|
||
findings="${findings}Cron-Jobs-In-Unusual-Locations "
|
||
risk=$((risk + 40))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_bash_history_malicious_commands() {
|
||
echo " Analyzing bash history for malicious commands..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
if [ -f /root/.bash_history ]; then
|
||
# Check for common attack commands (exclude legitimate installers)
|
||
local malicious_cmds=$(grep -E "wget.*\/tmp\/.*sh|curl.*(base64|eval)|nc -l|bash -i.*\/dev\/tcp|chmod \+s \/|chattr \+i" /root/.bash_history 2>/dev/null | grep -v "claude.ai\|github.com\|githubusercontent")
|
||
if [ -n "$malicious_cmds" ]; then
|
||
findings="${findings}Malicious-Commands-In-History "
|
||
risk=$((risk + 40))
|
||
fi
|
||
|
||
# Check for history clearing attempts
|
||
local history_tampering=$(grep -E "history -c|rm.*bash_history|unset HISTFILE" /root/.bash_history 2>/dev/null)
|
||
if [ -n "$history_tampering" ]; then
|
||
findings="${findings}History-Tampering-Detected "
|
||
risk=$((risk + 35))
|
||
fi
|
||
|
||
# Check for password hash modifications
|
||
local passwd_mods=$(grep -E "echo.*\/etc\/passwd|echo.*\/etc\/shadow|vipw|usermod.*-p" /root/.bash_history 2>/dev/null)
|
||
if [ -n "$passwd_mods" ]; then
|
||
findings="${findings}Password-File-Manipulation "
|
||
risk=$((risk + 45))
|
||
fi
|
||
fi
|
||
|
||
# Check if history is disabled
|
||
if ! grep -q "^HISTFILE=" /root/.bashrc 2>/dev/null && [ ! -f /root/.bash_history ]; then
|
||
findings="${findings}Bash-History-Disabled "
|
||
risk=$((risk + 25))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_web_shells() {
|
||
echo " Scanning for web shells..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
local web_roots=""
|
||
|
||
# Determine web roots based on panel
|
||
if [ -d /home ]; then
|
||
web_roots="/home/*/public_html /var/www/html /usr/local/apache/htdocs"
|
||
fi
|
||
|
||
# Scan for common web shell patterns (limit to recent files for performance)
|
||
local suspicious_files=$(find $web_roots -type f -name "*.php" -mtime -7 2>/dev/null | head -50 | xargs grep -l "eval(\|base64_decode(\|system(\|exec(\|passthru(\|shell_exec(" 2>/dev/null | head -10)
|
||
|
||
if [ -n "$suspicious_files" ]; then
|
||
local file_count=$(echo "$suspicious_files" | wc -l)
|
||
findings="${findings}Potential-Web-Shells:$file_count "
|
||
risk=$((risk + 35))
|
||
fi
|
||
|
||
# Check for suspicious PHP files in unusual locations
|
||
local unusual_php=$(find /tmp /var/tmp /dev/shm -name "*.php" 2>/dev/null)
|
||
if [ -n "$unusual_php" ]; then
|
||
findings="${findings}PHP-Files-In-Tmp "
|
||
risk=$((risk + 40))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_rootkit_indicators() {
|
||
echo " Checking for rootkit indicators..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check for common rootkit files
|
||
local rootkit_files="/dev/.hid /usr/bin/.sniffer /usr/local/hide /lib/libproc.a"
|
||
for file in $rootkit_files; do
|
||
if [ -e "$file" ]; then
|
||
findings="${findings}Rootkit-File:$file "
|
||
risk=$((risk + 50))
|
||
fi
|
||
done
|
||
|
||
# Check for suspicious kernel modules
|
||
local suspicious_modules=$(lsmod | grep -E "^(diamond|phalanx|beastkit)")
|
||
if [ -n "$suspicious_modules" ]; then
|
||
findings="${findings}Suspicious-Kernel-Modules "
|
||
risk=$((risk + 50))
|
||
fi
|
||
|
||
# Check for modified binaries (ls, ps, netstat) - look for backdoor/rootkit strings only
|
||
for cmd in /bin/ls /bin/ps /bin/netstat; do
|
||
if [ -f "$cmd" ]; then
|
||
local strings_check=$(strings "$cmd" 2>/dev/null | grep -iE "backdoor|rootkit|\bhidden\b.*process|\bhide\b.*file")
|
||
if [ -n "$strings_check" ]; then
|
||
findings="${findings}Modified-Binary:$cmd "
|
||
risk=$((risk + 50))
|
||
fi
|
||
fi
|
||
done
|
||
|
||
# Check for hidden directories (... or . or . )
|
||
local hidden_dirs=$(find / -maxdepth 3 -type d -name "..." -o -name ". " -o -name ". " 2>/dev/null)
|
||
if [ -n "$hidden_dirs" ]; then
|
||
findings="${findings}Hidden-Directories "
|
||
risk=$((risk + 35))
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
check_suspicious_network_activity() {
|
||
echo " Analyzing network connections..." >&2
|
||
|
||
local findings=""
|
||
local risk=0
|
||
|
||
# Check for connections to unusual ports (reverse shells often use 4444, 5555, 6666, 1337)
|
||
local suspicious_ports=$(netstat -antp 2>/dev/null | grep ESTABLISHED | awk '{print $4}' | cut -d: -f2 | grep -E "^(4444|5555|6666|1337|31337)$")
|
||
if [ -n "$suspicious_ports" ]; then
|
||
findings="${findings}Suspicious-Port-Connections "
|
||
risk=$((risk + 45))
|
||
fi
|
||
|
||
# Check for IRC connections (common in botnets)
|
||
local irc_conns=$(netstat -antp 2>/dev/null | grep ESTABLISHED | grep ":6667\|:6666\|:7000")
|
||
if [ -n "$irc_conns" ]; then
|
||
findings="${findings}IRC-Connections-Detected "
|
||
risk=$((risk + 30))
|
||
fi
|
||
|
||
# Check for excessive outbound connections from web server
|
||
if command -v pgrep &>/dev/null; then
|
||
local httpd_conns=$(lsof -p $(pgrep -d, httpd 2>/dev/null) 2>/dev/null | grep -c ESTABLISHED)
|
||
if [ "$httpd_conns" -gt 100 ]; then
|
||
findings="${findings}Excessive-Web-Server-Connections:$httpd_conns "
|
||
risk=$((risk + 25))
|
||
fi
|
||
fi
|
||
|
||
echo "$risk|$findings"
|
||
}
|
||
|
||
perform_compromise_detection() {
|
||
local ip=$1
|
||
|
||
echo " ${YELLOW}Running comprehensive compromise detection...${NC}" >&2
|
||
echo "" >&2
|
||
|
||
local total_risk=0
|
||
local all_findings=""
|
||
|
||
# Run all compromise checks
|
||
local result=$(check_backdoor_accounts)
|
||
local check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
local check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_unauthorized_ssh_keys)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_system_file_tampering)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_suspicious_processes)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_backdoor_cron_jobs)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_bash_history_malicious_commands)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_web_shells)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_rootkit_indicators)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
result=$(check_suspicious_network_activity)
|
||
check_risk=$(echo "$result" | cut -d'|' -f1)
|
||
check_findings=$(echo "$result" | cut -d'|' -f2-)
|
||
total_risk=$((total_risk + check_risk))
|
||
[ -n "$check_findings" ] && all_findings="${all_findings}${check_findings}"
|
||
|
||
# Cap at 100
|
||
[ $total_risk -gt 100 ] && total_risk=100
|
||
|
||
echo "$total_risk|$all_findings"
|
||
}
|
||
|
||
#
|
||
# AUTOMATED RESPONSE
|
||
#
|
||
|
||
trigger_automated_response() {
|
||
local ip=$1
|
||
local risk_score=$2
|
||
local username=$3
|
||
local panel=$4
|
||
|
||
# CRITICAL: 85-100
|
||
if [ $risk_score -ge $RISK_CRITICAL ] && [ "$SUSPICIOUS_LOGIN_AUTO_BLOCK" = "yes" ]; then
|
||
echo -e "\n${RED}🚨 CRITICAL RISK: Triggering automated response${NC}"
|
||
|
||
# 1. Block IP
|
||
if command -v csf &>/dev/null; then
|
||
echo " [1/3] Blocking IP via CSF..."
|
||
if csf -d "$ip" "Suspicious login (risk: $risk_score)" 2>/dev/null; then
|
||
echo -e " ${GREEN}✓ IP blocked via CSF${NC}"
|
||
else
|
||
echo -e " ${RED}✗ CSF block failed${NC}"
|
||
fi
|
||
else
|
||
echo " [1/3] Blocking IP via iptables..."
|
||
if iptables -I INPUT -s "$ip" -j DROP 2>/dev/null; then
|
||
echo -e " ${GREEN}✓ IP blocked via iptables${NC}"
|
||
else
|
||
echo -e " ${RED}✗ iptables block failed${NC}"
|
||
fi
|
||
fi
|
||
|
||
# 2. Trigger rkhunter scan
|
||
if [ "$SUSPICIOUS_LOGIN_AUTO_SCAN" = "yes" ] && [ -f "$MALWARE_SCANNER" ]; then
|
||
echo " [2/3] Triggering rootkit scan..."
|
||
# Run in background with timeout
|
||
timeout 300 bash "$MALWARE_SCANNER" --scanner rkhunter --quick &>/dev/null &
|
||
local scan_pid=$!
|
||
echo -e " ${GREEN}✓ Rootkit scan initiated (PID: $scan_pid)${NC}"
|
||
else
|
||
echo " [2/3] Rootkit scan (skipped - not configured)"
|
||
fi
|
||
|
||
# 3. CSI recommendation (cPanel only)
|
||
if [ "$panel" = "cpanel" ]; then
|
||
echo " [3/3] CSI scan recommended"
|
||
echo ""
|
||
echo " Run comprehensive security scan:"
|
||
echo " wget https://raw.githubusercontent.com/CpanelInc/tech-CSI/master/csi.pl"
|
||
echo " perl csi.pl --full"
|
||
fi
|
||
|
||
# HIGH: 70-84
|
||
elif [ $risk_score -ge $RISK_HIGH ]; then
|
||
echo -e "\n${YELLOW}⚠️ HIGH RISK: Manual review recommended${NC}"
|
||
|
||
if [ "$SUSPICIOUS_LOGIN_AUTO_BLOCK" = "yes" ] && command -v csf &>/dev/null; then
|
||
echo " [1/2] Adding temporary rate limit..."
|
||
if csf -tr "$ip" 300 "Rate limit: suspicious login" 2>/dev/null; then
|
||
echo -e " ${GREEN}✓ Rate limited for 5 minutes${NC}"
|
||
fi
|
||
fi
|
||
|
||
echo " [2/2] Schedule security scan for review"
|
||
|
||
# MEDIUM: 50-69
|
||
elif [ $risk_score -ge $RISK_MEDIUM ]; then
|
||
echo -e "\n${BLUE}ℹ️ MEDIUM RISK: Monitoring recommended${NC}"
|
||
|
||
# LOW: <50
|
||
else
|
||
echo -e "\n${GREEN}✓ LOW RISK: Logged for analysis${NC}"
|
||
fi
|
||
}
|
||
|
||
#
|
||
# REPORTING
|
||
#
|
||
|
||
generate_report() {
|
||
local panel=$1
|
||
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
echo -e "${CYAN} SUSPICIOUS LOGIN MONITOR - Integrated Security Report${NC}"
|
||
echo -e "${CYAN} Generated: $(date '+%Y-%m-%d %H:%M:%S')${NC}"
|
||
echo -e "${CYAN} Scanning: Last $HOURS hours${NC}"
|
||
echo -e "${CYAN} Panel: $panel${NC}"
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
echo ""
|
||
|
||
# Count total events
|
||
local total_events=$(cat "$SSH_EVENTS" "$PANEL_EVENTS" 2>/dev/null | wc -l)
|
||
local successful=$(cat "$SSH_EVENTS" "$PANEL_EVENTS" 2>/dev/null | grep -c "|success$")
|
||
local failed=$(cat "$SSH_EVENTS" "$PANEL_EVENTS" 2>/dev/null | grep -c "|failed$")
|
||
local root_count=$(cat "$SSH_EVENTS" "$PANEL_EVENTS" 2>/dev/null | grep -c "|root|")
|
||
|
||
if [ ! -s "$SUSPICIOUS_IPS" ]; then
|
||
echo -e "${GREEN}✓ No suspicious login activity detected${NC}"
|
||
echo ""
|
||
echo "SUMMARY:"
|
||
echo " Total Login Events: $total_events"
|
||
echo " Successful: $successful"
|
||
echo " Failed: $failed"
|
||
echo " Root Logins: $root_count"
|
||
echo ""
|
||
return 0
|
||
fi
|
||
|
||
local critical_count=$(awk -F'|' -v thresh=$RISK_CRITICAL '$2 >= thresh' "$SUSPICIOUS_IPS" | wc -l)
|
||
local high_count=$(awk -F'|' -v crit=$RISK_CRITICAL -v high=$RISK_HIGH '$2 >= high && $2 < crit' "$SUSPICIOUS_IPS" | wc -l)
|
||
|
||
if [ $critical_count -gt 0 ]; then
|
||
echo -e "${RED}🚨 CRITICAL ALERTS ($critical_count):${NC}"
|
||
echo ""
|
||
|
||
awk -F'|' -v thresh=$RISK_CRITICAL '$2 >= thresh' "$SUSPICIOUS_IPS" | head -n 5 | while IFS='|' read -r ip risk reasons successful failed root users services; do
|
||
echo -e " ${RED}[CRITICAL] $ip - Risk: $risk/100${NC}"
|
||
echo " ┌─────────────────────────────────────────────────────────"
|
||
echo " │ LOGIN EVENT"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
echo " │ IP: $ip"
|
||
echo " │ Successful logins: ${successful:-0}"
|
||
echo " │ Failed attempts: ${failed:-0}"
|
||
echo " │ Root logins: ${root:-0}"
|
||
echo " │ Users: $users"
|
||
echo " │ Services: $services"
|
||
echo " │ Initial Risk Factors: $reasons"
|
||
echo " │ Initial Risk: $risk/100"
|
||
echo " │"
|
||
|
||
# Cross-reference with bot analyzer
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
echo " │ ACCESS LOG CORRELATION (bot-analyzer.sh)"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
local correlation=$(correlate_with_access_logs "$ip" "$risk")
|
||
local corr_risk=$(echo "$correlation" | cut -d'|' -f1)
|
||
local corr_attacks=$(echo "$correlation" | cut -d'|' -f2-)
|
||
|
||
if [ "$corr_risk" != "0" ] && [ -n "$corr_attacks" ]; then
|
||
echo " │ ⚠️ Web attack activity detected:"
|
||
for attack in $corr_attacks; do
|
||
echo " │ - $attack"
|
||
done
|
||
risk=$((risk + corr_risk))
|
||
[ $risk -gt 100 ] && risk=100
|
||
else
|
||
echo " │ $corr_attacks"
|
||
fi
|
||
echo " │"
|
||
|
||
# Check IP reputation
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
echo " │ IP REPUTATION"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
local rep_result=$(check_ip_reputation "$ip" "$risk")
|
||
local rep_risk=$(echo "$rep_result" | cut -d'|' -f1)
|
||
local rep_notes=$(echo "$rep_result" | cut -d'|' -f2-)
|
||
|
||
if [ "$rep_risk" != "0" ]; then
|
||
echo " │ $rep_notes"
|
||
risk=$((risk + rep_risk))
|
||
[ $risk -gt 100 ] && risk=100
|
||
else
|
||
echo " │ $rep_notes"
|
||
fi
|
||
echo " │"
|
||
|
||
# Threat intelligence
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
echo " │ THREAT INTELLIGENCE"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
local threat_result=$(correlate_with_threat_intel "$ip")
|
||
local threat_risk=$(echo "$threat_result" | cut -d'|' -f1)
|
||
local threat_notes=$(echo "$threat_result" | cut -d'|' -f2-)
|
||
|
||
if [ "$threat_risk" != "0" ]; then
|
||
echo " │ ⚠️ $threat_notes"
|
||
risk=$((risk + threat_risk))
|
||
[ $risk -gt 100 ] && risk=100
|
||
else
|
||
echo " │ $threat_notes"
|
||
fi
|
||
|
||
echo " │"
|
||
|
||
# COMPROMISE DETECTION - Check if server is actually rooted
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
echo -e " │ ${RED}COMPROMISE DETECTION - System Integrity Check${NC}"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
local compromise_result=$(perform_compromise_detection "$ip")
|
||
local compromise_risk=$(echo "$compromise_result" | cut -d'|' -f1)
|
||
local compromise_findings=$(echo "$compromise_result" | cut -d'|' -f2-)
|
||
|
||
if [ "$compromise_risk" -ge 50 ]; then
|
||
echo -e " │ ${RED}🚨 COMPROMISE CONFIRMED - $compromise_risk risk points${NC}"
|
||
echo " │"
|
||
echo " │ Indicators of compromise found:"
|
||
# Parse and display findings
|
||
for finding in $(echo "$compromise_findings" | tr ' ' '\n'); do
|
||
echo " │ • $finding"
|
||
done
|
||
risk=$((risk + compromise_risk))
|
||
[ $risk -gt 100 ] && risk=100
|
||
elif [ "$compromise_risk" -gt 0 ]; then
|
||
echo -e " │ ${YELLOW}⚠️ Suspicious indicators found - $compromise_risk risk points${NC}"
|
||
echo " │"
|
||
for finding in $(echo "$compromise_findings" | tr ' ' '\n'); do
|
||
echo " │ • $finding"
|
||
done
|
||
risk=$((risk + compromise_risk))
|
||
[ $risk -gt 100 ] && risk=100
|
||
else
|
||
echo -e " │ ${GREEN}✓ No compromise indicators detected${NC}"
|
||
echo " │ System integrity checks passed"
|
||
fi
|
||
|
||
echo " │"
|
||
echo " ├─────────────────────────────────────────────────────────"
|
||
if [ "$compromise_risk" -ge 50 ]; then
|
||
echo -e " │ ${RED}FINAL RISK SCORE: $risk/100 - SERVER LIKELY COMPROMISED${NC}"
|
||
else
|
||
echo -e " │ ${RED}FINAL RISK SCORE: $risk/100 - CRITICAL${NC}"
|
||
fi
|
||
echo " └─────────────────────────────────────────────────────────"
|
||
|
||
# Trigger automated response
|
||
trigger_automated_response "$ip" "$risk" "$(echo "$users" | cut -d',' -f1)" "$panel"
|
||
|
||
echo ""
|
||
done
|
||
fi
|
||
|
||
if [ $high_count -gt 0 ]; then
|
||
echo -e "${YELLOW}⚠️ HIGH ALERTS ($high_count):${NC}"
|
||
echo ""
|
||
|
||
awk -F'|' -v crit=$RISK_CRITICAL -v high=$RISK_HIGH '$2 >= high && $2 < crit' "$SUSPICIOUS_IPS" | head -n 5 | while IFS='|' read -r ip risk reasons successful failed root users services; do
|
||
echo -e " ${YELLOW}[HIGH] $ip - Risk: $risk/100${NC}"
|
||
echo " Successful: ${successful:-0} | Failed: ${failed:-0} | Root: ${root:-0}"
|
||
echo " Reasons: $reasons"
|
||
|
||
# Quick correlation
|
||
local correlation=$(correlate_with_access_logs "$ip" "$risk")
|
||
local corr_attacks=$(echo "$correlation" | cut -d'|' -f2-)
|
||
if [ -n "$corr_attacks" ] && [ "$corr_attacks" != "No access log activity" ]; then
|
||
echo " Web attacks: $corr_attacks"
|
||
fi
|
||
|
||
echo ""
|
||
done
|
||
fi
|
||
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
echo "SUMMARY:"
|
||
echo ""
|
||
echo " Total Login Events: $total_events"
|
||
echo " Successful: $successful"
|
||
echo " Failed: $failed"
|
||
echo " Root Logins: $root_count"
|
||
echo ""
|
||
echo " Suspicious IPs: $(wc -l < "$SUSPICIOUS_IPS")"
|
||
echo " Critical Risk: $critical_count"
|
||
echo " High Risk: $high_count"
|
||
echo ""
|
||
|
||
# Integration status
|
||
echo " Integration Status:"
|
||
local bot_report=$(ls -t "$TOOLKIT_ROOT"/tmp/bot_analysis_report_*.txt /tmp/bot_analysis_report_*.txt 2>/dev/null | head -n1)
|
||
[ -n "$bot_report" ] && echo " ✓ Bot Analyzer: Available" || echo " ✗ Bot Analyzer: No recent data"
|
||
[ -f "$IP_REPUTATION_LIB" ] && echo " ✓ IP Reputation: Available" || echo " ✗ IP Reputation: Not available"
|
||
[ -f "$THREAT_INTEL_LIB" ] && echo " ✓ Threat Intelligence: Available" || echo " ✗ Threat Intelligence: Not available"
|
||
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
}
|
||
|
||
#
|
||
# MAIN
|
||
#
|
||
|
||
main() {
|
||
echo -e "${CYAN}Starting Suspicious Login Monitor...${NC}"
|
||
echo ""
|
||
|
||
# Detect panel
|
||
local panel=$(detect_panel)
|
||
echo "Detected panel: $panel"
|
||
echo ""
|
||
|
||
# Parse logs (universal parsers first)
|
||
parse_ssh_logins "$HOURS"
|
||
parse_wtmp_logins "$HOURS"
|
||
parse_btmp_logins "$HOURS"
|
||
parse_sudo_escalation "$HOURS"
|
||
|
||
# Parse panel-specific logs
|
||
case "$panel" in
|
||
cpanel)
|
||
parse_cpanel_logins "$HOURS"
|
||
;;
|
||
plesk)
|
||
parse_plesk_logins "$HOURS"
|
||
;;
|
||
interworx)
|
||
parse_interworx_logins "$HOURS"
|
||
;;
|
||
esac
|
||
|
||
# Analyze
|
||
detect_anomalies
|
||
|
||
# Generate report
|
||
generate_report "$panel" | tee "$REPORT_FILE"
|
||
|
||
echo ""
|
||
echo "Report saved to: $REPORT_FILE"
|
||
|
||
# ALWAYS run system-wide compromise detection (regardless of login activity)
|
||
echo ""
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
echo -e "${CYAN} SYSTEM COMPROMISE DETECTION - Integrity Check${NC}"
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
echo ""
|
||
|
||
local compromise_result=$(perform_compromise_detection "system-wide")
|
||
local compromise_risk=$(echo "$compromise_result" | cut -d'|' -f1)
|
||
local compromise_findings=$(echo "$compromise_result" | cut -d'|' -f2-)
|
||
|
||
if [ "$compromise_risk" -ge 100 ]; then
|
||
echo -e "${RED}🚨 CRITICAL: Server shows strong indicators of compromise${NC}"
|
||
echo -e "${RED} Risk Score: $compromise_risk/100${NC}"
|
||
echo ""
|
||
echo "Indicators found:"
|
||
for finding in $(echo "$compromise_findings" | tr ' ' '\n'); do
|
||
echo -e " ${RED}•${NC} $(echo $finding | tr '-' ' ')"
|
||
done
|
||
echo ""
|
||
echo -e "${RED}RECOMMENDED ACTIONS:${NC}"
|
||
echo " 1. Investigate all findings immediately"
|
||
echo " 2. Run full rootkit scan: rkhunter --check"
|
||
if [ "$panel" = "cpanel" ]; then
|
||
echo " 3. Run cPanel CSI: perl csi.pl --full"
|
||
fi
|
||
echo " 4. Consider full system reinstall if compromised"
|
||
elif [ "$compromise_risk" -ge 50 ]; then
|
||
echo -e "${RED}⚠️ WARNING: Suspicious indicators detected${NC}"
|
||
echo -e "${YELLOW} Risk Score: $compromise_risk/100${NC}"
|
||
echo ""
|
||
echo "Indicators found:"
|
||
for finding in $(echo "$compromise_findings" | tr ' ' '\n'); do
|
||
echo -e " ${YELLOW}•${NC} $(echo $finding | tr '-' ' ')"
|
||
done
|
||
echo ""
|
||
echo -e "${YELLOW}RECOMMENDED ACTIONS:${NC}"
|
||
echo " 1. Review all findings carefully"
|
||
echo " 2. Run rootkit scan: rkhunter --check"
|
||
echo " 3. Investigate recent account/file changes"
|
||
elif [ "$compromise_risk" -gt 0 ]; then
|
||
echo -e "${BLUE}ℹ️ NOTICE: Minor security concerns detected${NC}"
|
||
echo -e "${BLUE} Risk Score: $compromise_risk/100${NC}"
|
||
echo ""
|
||
echo "Issues found:"
|
||
for finding in $(echo "$compromise_findings" | tr ' ' '\n'); do
|
||
echo -e " ${BLUE}•${NC} $(echo $finding | tr '-' ' ')"
|
||
done
|
||
echo ""
|
||
echo "Review these items when convenient."
|
||
else
|
||
echo -e "${GREEN}✓ No compromise indicators detected${NC}"
|
||
echo ""
|
||
echo "System integrity checks:"
|
||
echo " ✓ No unauthorized UID 0 accounts"
|
||
echo " ✓ No suspicious SSH keys"
|
||
echo " ✓ No system file tampering detected"
|
||
echo " ✓ No suspicious processes found"
|
||
echo " ✓ No backdoor cron jobs"
|
||
echo " ✓ No malicious commands in bash history"
|
||
echo " ✓ No web shells detected"
|
||
echo " ✓ No rootkit indicators"
|
||
echo " ✓ No suspicious network activity"
|
||
fi
|
||
|
||
echo -e "${CYAN}═══════════════════════════════════════════════════════════════${NC}"
|
||
}
|
||
|
||
# Run main function
|
||
main
|
||
|
||
exit 0
|