Detection rules › Sigma

Remote PowerShell Sessions Network Connections (WinRM)

Severity
high
Author
Roberto Rodriguez @Cyb3rWard0g
Source
upstream

Detects basic PowerShell Remoting (WinRM) by monitoring for network inbound connections to ports 5985 OR 5986

MITRE ATT&CK coverage

TacticTechniques
ExecutionT1059.001 Command and Scripting Interpreter: PowerShell

Event coverage

ProviderEvent IDTitle
Security-Auditing5156The Windows Filtering Platform has permitted a connection.

Stages and Predicates

Stage 1: selection

DestPort: [5985, 5986]
LayerRTID: 44

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
DestPorteq
  • 5985 corpus 2 (sigma 2)
  • 5986 corpus 2 (sigma 2)
LayerRTIDeq
  • 44

Neighbors

Broader alternatives (more inclusive than this rule)

These rules match a superset of what this rule catches. They cover the same events plus more. Use them if you want wider coverage and can absorb more false positives.