Detection rules › Sigma

Suspicious Get-ADDBAccount Usage

Severity
high
Author
Florian Roth (Nextron Systems)
Source
upstream

Detects suspicious invocation of the Get-ADDBAccount script that reads from a ntds.dit file and may be used to get access to credentials without using any credential dumpers

MITRE ATT&CK coverage

TacticTechniques
Credential AccessT1003.003 OS Credential Dumping: NTDS

Event coverage

ProviderEvent IDTitle
PowerShell4103Payload Context: ContextInfo User Data: UserData.

Stages and Predicates

Stage 1: selection

Payload|contains: 'BootKey '
Payload|contains: 'DatabasePath '
Payload|contains: Get-ADDBAccount

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
  • BootKey
  • DatabasePath
  • Get-ADDBAccount