Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,603 views
11,679 detections
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Detects execution of sensitive administrative binaries (rm, chmod, chown) targeting critical system files or directories, or direct interaction with sensitive system files and configuration logs which may indicate unauthorized data access or evidence tampering.
This rule detects successful SSH login events utilizing public key authentication for the 'vmanage-admin' user. It aggregates login events by source IP, username, and host to identify patterns of access for this specific administrative account.
This rule detects network connections and DNS requests to specific domains associated with Unistream SDK and other known BadBlocker malware infrastructure, often linked to malicious browser extensions such as Adblock for YouTube and related variants.
This rule detects potentially malicious activities on Linux systems involving the creation of new accounts or access to sensitive files like /etc/passwd and /etc/shadow using or referencing the string 'troot'. This pattern is often associated with adversary attempts to create backdoored accounts or perform offline password cracking by manipulating or dumping authentication files.
Detects cmd.exe spawned from CrystalX-style temp executable lineage.
Detects network activity associated with the Turla group's STOCKSTAY malware infrastructure. This includes downloading MSI installers or server scripts from GitHub, as well as WebSocket C2 communications with the onrender.com platform.
Detects the Turla threat group's STOCKSTAY malware establishing persistence by creating a registry entry in the HKCU Run key. The persistence mechanism points to 'MicrosoftUpdateOneDrive.exe' located in the '%LOCALAPPDATA%\Programs\SMN\' directory.
Detects anomalous bulk publication of NPM packages by a specific compromised maintainer account (czirker) targeting the LeoPlatform and LeoInsights organizations, indicative of malicious propagation behavior similar to the Miasma worm.
Detects evidence of the MYRA Linux RAT executing payloads filelessly from memory using memfd_create and fexecve. The rule flags suspicious processes masquerading as systemd-userdbd, particularly when spawned from Node.js environments or associated with malicious packages like apintergrationpost or .libcache.so artifacts.
Detects the 'Adblock for YouTube' browser extension (specific ID cmedhionkhpnakcndndgjdbohmhepckk) performing suspicious file system operations related to the injection of remotely-fetched scriptlets into the browser's MAIN world. This activity is indicative of an attempt to bypass browser security boundaries to access session cookies, local/session storage, and login form data.
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