Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,586 views
11,679 detections
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Detects reconnaissance activity originating from npm or Node.js processes, specifically targeting system information (OS, network, user context, and hardware identifiers). This activity is associated with supply chain compromise attempts where malicious npm postinstall scripts or inline Node.js execution are used to enumerate the host environment.
Detects persistence mechanisms associated with the MYRA RAT. This includes Linux/macOS crontab modification using specific schedules or shell profile writes initiated by node/npm processes, as well as Windows scheduled task creation or task manipulation via schtasks.exe initiated by node/npm processes.
Detects various privilege escalation and reconnaissance techniques commonly associated with the 'Operation Poisson' campaign, including UAC bypass attempts, local administrator group enumeration, and administrative privilege verification triggered by script interpreters.
Detects malicious activity associated with the Miasma/MYRA infostealer campaign targeting DeFi developers. The rule monitors npm lifecycle scripts (postinstall/preinstall) for suspicious execution, C2 communication with known malicious domains, unauthorized access to browser-based credential storage, and persistence attempts via LD_PRELOAD on Linux environments.
This rule detects reconnaissance activity on FreeBSD systems by monitoring the execution of 'sysctl', 'uname', 'freebsd-version', and 'pkg' to query sensitive kernel parameters and system version information. Specifically, it flags queries related to CVE-2026-45257 (BUMSRAKETE), such as 'kern.ipc.mb_use_ext_pgs' and 'kern.tls.enable'. The rule differentiates risk levels based on the combination of targeted kernel parameter checks and system version enumeration.
Detects MYRA Linux RAT persistence mechanisms. The rule monitors for the creation of cron jobs scheduled to run every 13 minutes and the creation of a profile initialization script at /etc/profile.d/.sh.local, which is a common technique for ensuring code execution upon user shell session initialization.
Detects execution of potentially malicious npm lifecycle scripts (preinstall/postinstall) associated with the Polymarket Trap supply chain campaign. The rule monitors node.exe spawning specific known-malicious scripts or executing shell commands via cmd.exe, often related to attacker-controlled dependency packages.
Detects node.exe processes accessing sensitive AWS configuration files (credentials, config), .npmrc files, or suspicious data parsing utilities, indicative of the Polymarket Trap npm infostealer attempting to exfiltrate cloud credentials and tokens from developer workstations.
Detects Tailscale installation, configuration, and mesh network enrollment activity. The rule monitors for the execution of Tailscale processes with enrollment flags, DNS lookups to Tailscale coordination servers, WireGuard UDP traffic on port 41641, and connections to the Tailscale CGNAT IP address space. This activity is often used by adversaries to establish persistent, encrypted remote access.
This rule detects potentially malicious activity related to cron job scheduling. It monitors for three distinct stages: (1) direct modification of crontab files or directories using common shell utilities, (2) suspicious file write operations to critical cron configuration paths, and (3) execution of shell scripts or binaries from unusual directories (e.g., /tmp, /dev/shm) where the parent process is a cron utility.
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