Detectionhightest
Invoke-Obfuscation Via Stdin - Security
Detects Obfuscated Powershell via Stdin in Scripts
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Nikita Nazarov, oscd.communityCreated Mon Oct 12Updated Tue Nov 2980b708f3-d034-40e4-a6c8-d23b7a7db3d1windows
Log Source
Windowssecurity
ProductWindows← raw: windows
Servicesecurity← raw: security
Definition
The 'System Security Extension' audit subcategory need to be enabled to log the EID 4697
Detection Logic
Detection Logic1 selector
detection:
selection:
EventID: 4697
ServiceFileName|contains|all:
- 'set'
- '&&'
ServiceFileName|contains:
- 'environment'
- 'invoke'
- '${input)'
condition: selectionFalse 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
80b708f3-d034-40e4-a6c8-d23b7a7db3d1
Status
test
Level
high
Type
Detection
Created
Mon Oct 12
Modified
Tue Nov 29
Author
Path
rules/windows/builtin/security/win_security_invoke_obfuscation_via_stdin_services_security.yml
Raw Tags
attack.defense-evasionattack.t1027attack.executionattack.t1059.001