Rule Library

Sigma Rules

Browse detections by severity and log source, with YAML and sample events one click away.

3,782Total
3,164Detection
474Emerging
141Hunting
2 rulesInspect a rule without leaving your results.
highexperimentalEmerging Threat

Exploitation Activity of CVE-2025-59287 - WSUS Suspicious Child Process

Detects the creation of command-line interpreters (cmd.exe, powershell.exe) as child processes of Windows Server Update Services (WSUS) related process wsusservice.exe. This behavior is a key indicator of exploitation for the critical remote code execution vulnerability such as CVE-2025-59287, where attackers spawn shells to conduct reconnaissance and further post-exploitation activities.

windowsprocess_creation
2025-10-31
highexperimentalEmerging Threat

Exploitation Activity of CVE-2025-59287 - WSUS Deserialization

Detects cast exceptions in Windows Server Update Services (WSUS) application logs that highly indicate exploitation attempts of CVE-2025-59287, a deserialization vulnerability in WSUS.

windowsapplication
2025-10-31