Arnold Chan
@slazTrusted contributorCompletionist
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7,555 detections
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Detects the ShieldCrash CVE-2026-69414 exploit PoC binary/PDB via multiple corroborating distinguishing strings and file size
This rule detects the creation, modification, or renaming of 'ntdll.dll' within a specific directory path matching the pattern 'ShieldCrash_{GUID}'. This pattern is indicative of potential malicious activity, such as the use of NTFS Alternate Data Streams (ADS) for persistence or execution evasion. The rule explicitly excludes known legitimate system processes that may handle DLL files to minimize noise.
This rule detects email-based business fraud (BEC) targeting the organization, specifically looking for executive impersonation paired with financial lure terminology and sender domain mismatches. It utilizes both a blocklist of known fraudulent sender indicators (domains and addresses) and a heuristic approach analyzing discrepancies between the envelope sender domain and the header sender domain combined with executive titles in display names and invoice-related keywords.
Detects execution of potentially suspicious processes ('Launcher.exe' or 'GapiUpdate.exe') originating from ClickOnce-related processes ('dfsvc.exe' or 'rundll32.exe' with 'dfshim.dll'). ClickOnce is often abused to proxy execution of malicious code, allowing adversaries to execute applications from user-writable directories without administrative privileges.
Detects NeedleStealer Rust-based stealer binaries via Go module path strings, C2 domain, build tag, and embedded browser wallet extension identifiers
Detects NeedleStealer Rust-based stealer binaries via Go module path strings, C2 domain, build tag, and embedded browser wallet extension identifiers
Detects NeedleStealer Rust-based stealer binaries via Go module path strings, C2 domain, build tag, and embedded browser wallet extension identifiers
Detects the creation of scheduled tasks using the 'schtasks.exe' utility that reference suspicious paths (AppData/Local or Roaming) or specific executables often associated with suspicious activity (Launcher.exe, GapiUpdate.exe) in conjunction with 'DeviceSetupManager'. Additionally, it includes a hash-based detection for a specific known malicious file artifact.
Detects the creation of scheduled tasks using the 'schtasks.exe' utility that reference suspicious paths (AppData/Local or Roaming) or specific executables often associated with suspicious activity (Launcher.exe, GapiUpdate.exe) in conjunction with 'DeviceSetupManager'. Additionally, it includes a hash-based detection for a specific known malicious file artifact.
Detects access to sensitive credential stores (KeePass databases, Firefox logins, SSH keys, VPN configuration files) by suspicious processes, specifically those associated with potential credential harvesting tools or unauthorized update binaries.
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