Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,457 downloads7,056 copies47 likes38,416 views
11,679 detections
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Detects HTTP responses that utilize JavaScript Web Crypto API (subtle.importKey, subtle.decrypt) or AES-GCM encryption in conjunction with data decoding functions (atob, Uint8Array.from). This behavior is characteristic of malicious landing pages, such as those used by ErrTraffic ClickFix and EvilTokens campaigns, which encrypt payloads to evade static analysis by security tools.
Detects web service accounts (e.g., www-data) unexpectedly spawning shells from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.
Detects execution of PowerShell scripts associated with ErrTraffic (ClickFix) campaigns. The rule identifies malicious patterns, including the use of hex-encoded XOR operations, specific browser update comment markers, and the dynamic creation of ScriptBlocks to facilitate payload execution.
Detects web service accounts (e.g., www-data) unexpectedly spawning shells from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.
Detects the deployment and execution of the MeshCentral remote management agent on PeopleSoft servers, which is indicative of unauthorized access by the ShinyHunters threat group. The rule triggers on the execution of the meshctrl.js script using the RunCommand function with suspicious loopback WebSocket connections, or the direct execution of the meshagent binary from within the /opt/meshcentral/ directory.
Detects web service accounts (e.g., www-data) unexpectedly spawning shells from FFmpeg. This behavior is strongly indicative of remote code execution (RCE) via the PixelSmash vulnerability, specifically targeting automated preview generation in platforms like Nextcloud.
Detects the execution of known OXLOADER malware samples from temporary directories or download locations. The detection focuses on identifying specific filenames and file paths, while the rule metadata highlights the malware's behavior of performing geofencing checks (e.g., CIS region evasion) using Windows API functions to determine the system's locale.
Detects the creation of a .ps1 script in the Windows AppData\Local\Temp directory followed by the execution of that script via PowerShell using hidden window flags (-WindowStyle Hidden) and policy bypass options (-ExecutionPolicy Bypass). This pattern is commonly associated with persistence mechanisms used by steganographic loaders to execute obfuscated payloads.
Detects suspicious processes (e.g., node.exe, chost.exe, python) accessing sensitive credential files and subsequently exfiltrating data to the Telegram Bot API via HTTPS POST requests within a 10-minute window. This behavior is indicative of infostealer malware, such as those observed in the Friday Harvest campaign, harvesting and exfiltrating system data.
Detects instances where FFmpeg media processing tools spawn interactive shell processes. This behavior is highly indicative of successful remote code execution (RCE) via CVE-2026-8461 (PixelSmash), where an attacker hijacks the AVBuffer struct to call libc's system() function.
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