Detection rules › Sigma

HackTool - Wmiexec Default Powershell Command

Severity
high
Author
Nasreddine Bencherchali (Nextron Systems)
Source
upstream

Detects the execution of PowerShell with a specific flag sequence that is used by the Wmiexec script

Event coverage

ProviderEvent IDTitle
Sysmon1Process creation
Security-Auditing4688A new process has been created.

Stages and Predicates

Stage 1: selection

CommandLine|contains: '-NoP -NoL -sta -NonI -W Hidden -Exec Bypass -Enc'

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
CommandLinematch
  • -NoP -NoL -sta -NonI -W Hidden -Exec Bypass -Enc