Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,563 views
11,679 detections
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Detects when AI-powered coding assistant plugins or CLI tools (e.g., Claude, Copilot, Gemini) execute subprocesses that attempt to access sensitive configuration files, SSH keys, or cloud credential stores. This may indicate an AI tool being manipulated or misconfigured to exfiltrate sensitive local secrets.
Detects anomalous git operations initiated by AI coding agents (e.g., Claude, Copilot, Gemini-cli) that suggest potential supply chain tampering. The rule identifies attempts to checkout via a raw SHA-1 hash, git refname ambiguity warnings, or mismatches between the pinned plugin manifest commit SHA and the actual HEAD SHA resolved during operations, which may indicate a malicious substitution of code during dependency installation or updates.
Detects Settra ransomware binaries characterized by naming conventions including '_win64.exe', which create 'RESTORE_FILES.txt' ransom notes and use '.locked' or '.locked_wip' file extensions for encrypted data.
Detects instances where processes associated with Claude or Codex modify or create files within a plugin directory without a preceding legitimate installation or session command (such as 'install' or 'plugin add'). This behavior may indicate unauthorized plugin installation, persistence establishment, or malicious code injection into the development environment.
Detects the execution of obfuscated PowerShell commands initiated from the Windows Run dialog (explorer.exe). This pattern is consistent with 'ClickFix' social engineering attacks where users are coerced into copying and pasting malicious, obfuscated code into the Run dialog. The rule monitors for common obfuscation artifacts such as carets, hidden window flags, encoded command arguments, and large base64-like blobs within the command line.
This rule detects PowerShell script execution patterns indicative of the StealC 'ClickFix' infection chain. It specifically looks for the reflective loading of an obfuscated .NET assembly from memory, involving common .NET cryptographic and compression classes such as AesCryptoServiceProvider, GzipStream, and assembly loading methods like Assembly.Load. The rule uses markers and script length heuristics to identify payloads characteristic of this malware delivery technique.
Detects unauthorized write operations targeting the memory space of amsi.dll, specifically attempting to patch exported functions such as AmsiScanBuffer or AmsiScanString. This technique is commonly employed by malicious actors to neutralize the Antimalware Scan Interface (AMSI) and prevent security telemetry from inspecting scripts and payloads during execution.
Detects PowerShell processes spawned from Windows Script Host (wscript.exe/cscript.exe) that interact with environment variables starting with 'Kv'. This behavior is indicative of the LausivLoader malware, which passes data between script stages via inherited environment variables to avoid using command-line arguments.
Detects the use of PowerShell to modify Windows Defender exclusions by adding the 'C:\' drive root as an exclusion path. This technique, which can be executed via 'Add-MpPreference', 'Set-MpPreference', or 'Invoke-CimMethod', effectively disables real-time scanning across the entire system drive and is often employed by adversaries to hide malicious activity from antivirus detection.
Detects the execution of PowerShell or PowerShell ISE with command line arguments indicative of suspicious activity, such as the use of GZipStream for payload decompression, AesManaged for payload decryption, or in-memory assembly loading via Reflection.Assembly or EntryPoint.Invoke, often associated with fileless malware execution or obfuscated script runners.
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