Detection rules › Sigma
Invoke-Obfuscation Via Use Rundll32 - PowerShell Module
Detects Obfuscated Powershell via use Rundll32 in Scripts
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1059.001 Command and Scripting Interpreter: PowerShell |
| Defense Evasion | T1027 Obfuscated Files or Information |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| PowerShell | 4103 | Payload Context: ContextInfo User Data: UserData. |
Stages and Predicates
Stage 1: selection_4103
or:
Payload|contains: comspec
Payload|contains: iex
Payload|contains: invoke
Payload|contains: value
Payload|contains: '&&'
Payload|contains: rundll32
Payload|contains: shell32.dll
Payload|contains: shellexec_rundll
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.
| Field | Kind | Values |
|---|---|---|
Payload | match |
|