Detectionhightest
Invoke-Obfuscation Via Use Rundll32 - PowerShell Module
Detects Obfuscated Powershell via use Rundll32 in Scripts
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Nikita Nazarov, oscd.communityCreated Tue Oct 08Updated Tue Nov 2988a22f69-62f9-4b8a-aa00-6b0212f2f05awindows
Log Source
WindowsPowerShell Module
ProductWindows← raw: windows
CategoryPowerShell Module← raw: ps_module
Definition
0ad03ef1-f21b-4a79-8ce8-e6900c54b65b
Detection Logic
Detection Logic1 selector
detection:
selection_4103:
Payload|contains|all:
- '&&'
- 'rundll32'
- 'shell32.dll'
- 'shellexec_rundll'
Payload|contains:
- 'value'
- 'invoke'
- 'comspec'
- 'iex'
condition: selection_4103False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Techniques
Sub-techniques
Rule Metadata
Rule ID
88a22f69-62f9-4b8a-aa00-6b0212f2f05a
Status
test
Level
high
Type
Detection
Created
Tue Oct 08
Modified
Tue Nov 29
Author
Path
rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_via_use_rundll32.yml
Raw Tags
attack.defense-evasionattack.t1027attack.executionattack.t1059.001