Arnold Chan
@slazTrusted contributorCompletionist
2 followers2,099 downloads4,322 copies51 likes25,793 views
7,544 detections
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Detects suspicious service creation or registry modifications related to wscl.exe that mimic persistence mechanisms.
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
Detects Adblock.dll used by Docro Hijacker to bypass Chrome Secure Preferences HMAC-SHA256 integrity checks and register infected browser UUID via vendralo[.]info
Detects the specific C2 handshake pattern associated with HVNC (Hidden Virtual Network Computing) remote access trojans. The rule monitors for a unique sequence of markers, specifically CLIENT_ID, COMPUTER, IDENTIFIER_CHANNEL, and a version string, indicating a malware-specific communication protocol.
Detects the specific C2 handshake pattern associated with HVNC (Hidden Virtual Network Computing) remote access trojans. The rule monitors for a unique sequence of markers, specifically CLIENT_ID, COMPUTER, IDENTIFIER_CHANNEL, and a version string, indicating a malware-specific communication protocol.
This rule detects sophisticated phishing lure pages impersonating DocuSign or NFe documentation. It specifically identifies pages that implement multi-layered anti-bot gating techniques, including detection of browser automation (navigator.webdriver), identification of headless browser artifacts (headless/HeadlessChrome), and the presence of interaction-wait fallback timers using addEventListener, all tied to specific malicious content indicators.
This rule detects suspicious PowerShell execution that attempts to download files from the internet using the Invoke-WebRequest cmdlet. It specifically looks for PowerShell processes launched with hidden and execution policy bypass flags, coupled with specific hardcoded malicious URL patterns associated with a known campaign (NotaFiscal/nfe_valid_access_key_2026_secure).
Detects the creation of specific mutex objects ('AppUpdateHelper' or 'WinSvc') commonly associated with Hidden VNC (hVNC) backdoors. These mutexes are used by the malware to ensure only one instance is running on the host, and the regex pattern targets the specific naming convention (including a hex suffix) utilized by these threats.
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