Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,580 views
11,679 detections
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Detects the execution of Python scripts on Windows that utilize keyboard hooking libraries or APIs (pynput, GetAsyncKeyState, SetWindowsHookEx) characteristic of keylogging behavior. The rule specifically excludes known development environments to reduce false positives.
Detects Node.js, NPM, or NPX processes attempting to read sensitive shell history files (e.g., .bash_history, .zsh_history). This behavior is characteristic of malicious activity such as infostealers attempting to harvest credentials or reconnaissance data from a compromised developer environment, notably observed in supply chain campaigns like the Polymarket Trap.
Detects network proxy activity associated with the 'Polymarket Trap' supply chain attack, where developers are lured into cloning a fake arbitrage bot repository or fetching malicious npm packages from the wshu.net domain. The rule monitors for access to known malicious repositories (Trum3it/polymarket-arbitrage-bot) and malicious dependencies (clob-client-math).
Detects post-exploitation activities related to the CVE-2026-45257 BUMSRAKETE vulnerability on FreeBSD. The rule monitors for kernel module loading using kldload from suspicious directories, kldstat execution, unauthorized root-level crontab modifications, and suspicious root-level shell execution spawned from non-standard parent processes, all of which indicate potential persistence or rootkit installation following a local privilege escalation.
Detects reconnaissance and exploit activity associated with the BUMSRAKETE exploit (CVE-2026-45257) targeting FreeBSD. The rule identifies system configuration checks of kernel parameters related to kTLS and mbuf external pages, as well as the execution of file permission manipulation commands often required to bypass immutable (schg) file flags during the exploitation process.
Detects unauthorized usage of the RustDesk remote access tool, including process execution from suspicious parents, service installation, outbound connections to known relay infrastructure, and DNS queries for RustDesk relay domains originating from non-browser processes. This rule is designed to identify secondary or redundant remote access channels potentially established by adversaries.
Detects indicators of the BUMSRAKETE FreeBSD kernel-level exploit (CVE-2026-45257). This rule monitors for exploit artifact file creation, malicious use of dd to overwrite SUID binaries for privilege escalation, kernel configuration enumeration via sysctl, spawning of shell processes with root UID from suid-related binaries, and kernel version fingerprinting.
Detects evidence of exploitation for CVE-2026-45257, a FreeBSD vulnerability that allows bypassing chflags schg immutable flags. The detection tracks the initial reconnaissance phase where unprivileged processes query the sysctl 'kern.ipc.mb_use_ext_pgs' followed by the creation of specific exploit restorer artifacts '/tmp/.lpe_orig' and '/tmp/.x'.
Detects instances where npm or node processes execute suspicious shell commands or scripts, often associated with software supply chain attacks. The rule looks for child processes like shell interpreters (sh, bash) or utilities (curl, wget, python) initiated by node/npm, combined with suspicious command-line patterns indicative of obfuscated execution or malicious package lifecycle scripts.
This rule detects the creation of scheduled tasks using either schtasks.exe or PowerShell (Register-ScheduledTask) that exhibit high-risk indicators. These indicators include executing files from suspicious locations (AppData, Temp, or specific user-writable directories), the use of encoded PowerShell commands, or initiation by common remote access tools (sshd, ssh, or mstsc). This behavior is often associated with persistence mechanisms used by adversaries.
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