Detection rules › Sigma

Potential Active Directory Enumeration Using AD Module - PsModule

Severity
medium
Author
Nasreddine Bencherchali (Nextron Systems), frack113
Source
upstream

Detects usage of the "Import-Module" cmdlet to load the "Microsoft.ActiveDirectory.Management.dl" DLL. Which is often used by attackers to perform AD enumeration.

Event coverage

ProviderEvent IDTitle
PowerShell4103Payload Context: ContextInfo User Data: UserData.

Stages and Predicates

Stage 1: all of selection_cmdlet

or:
Payload|contains: 'Import-Module '
Payload|contains: 'ipmo '

Stage 2: all of selection_dll

Payload|contains: 'Microsoft.ActiveDirectory.Management.dll'

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
Payloadmatch
  • Import-Module
  • Microsoft.ActiveDirectory.Management.dll
  • ipmo