Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,457 downloads7,056 copies47 likes38,421 views
11,679 detections
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Detects the execution of Nova ransomware (formerly RALord) by monitoring for its specific modular command-line interface arguments, which include file encryption commands, ransom note deployment, and specific ransom note filenames. The rule monitors process creation events for strings like 'encrypt-all', 'encrypt-path', 'readme-add', '--workers', and the presence of the 'README_NOVA.me' ransom note or unique file extensions associated with its encryption activity.
Detects HTTP requests to Vercel deployment domains where the requested resource is a specific phishing kit asset ('font1.woff2'). This pattern is commonly associated with phishing campaigns hosted on free web hosting platforms.
Detects HTTP requests and responses involving the download of an executable file named 'ClaudeDesktop.exe' from the 'claude.ai' host, which is indicative of a malicious campaign distributing SectopRAT.
Detects potential malicious activity where a process associated with a Claude agent (or a downloader utility) references a 'SKILL.md' configuration file. This behavior is indicative of a poisoned skill file being used to trigger unauthorized payload downloads or re-establish persistence.
Detects execution of remote payloads by piping the output of network utilities like curl or wget directly into a shell interpreter (bash, sh, zsh). This pattern is a common technique used by attackers to execute malicious scripts directly from a remote server without saving a file to disk.
Detects the modification or creation of a 'loginwindow.plist' file within the '/Library/LaunchAgents/' directory, correlated with a process containing 'renderer' and 'launchctl' or 'LaunchAgents' in its command line. This pattern suggests potential persistence mechanisms being established by a renderer process (e.g., an Electron-based application or browser process).
Detects specific, targeted search operations within M365 environments for keywords related to payroll, HR, and banking information. This behavior is indicative of post-compromise reconnaissance activity, often following AiTM (Adversary-in-the-Middle) session hijacking where an attacker attempts to locate financial documents and payroll correspondence.
Detects persistence establishment for the NetSupport Manager remote access tool (client32.exe) via common Windows techniques including registry run keys, Winlogon configuration, service creation, and scheduled tasks. This activity is often associated with the abuse of legitimate RMM software as a covert remote access implant, frequently following initial access via PowerShell or script-based loaders.
Detects the Redis server process writing or modifying files within cron configuration directories. This is a common persistence technique used by attackers to gain recurring execution after exploiting vulnerable or misconfigured Redis instances.
Detects the creation, update, or activation of an external Identity Provider (IdP) or federated trust configuration within the Okta environment. This activity may indicate an attempt to establish a rogue federation trust, which allows an adversary to perform cross-tenant impersonation and authenticate as any user by minting assertions signed by attacker-controlled keys.
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