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Detectionhightest

Invoke-Obfuscation Via Use MSHTA - PowerShell Module

Detects Obfuscated Powershell via use MSHTA in Scripts

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Nikita Nazarov, oscd.communityCreated Thu Oct 08Updated Wed Jan 0407ad2ea8-6a55-4ac6-bf3e-91b8e59676ebwindows
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:
        Payload|contains|all:
            - 'set'
            - '&&'
            - 'mshta'
            - 'vbscript:createobject'
            - '.run'
            - '(window.close)'
    condition: selection
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References
1
Resolving title…
github.com
MITRE ATT&CK
Related Rules
DerivedDetectionhigh

Invoke-Obfuscation Via Use MSHTA - PowerShell

Detects Obfuscated Powershell via use MSHTA in Scripts

This rule was derived from the related rule - both detect similar activity with different scope.

Rule Metadata
Rule ID
07ad2ea8-6a55-4ac6-bf3e-91b8e59676eb
Status
test
Level
high
Type
Detection
Created
Thu Oct 08
Modified
Wed Jan 04
Author
Nikita Nazarov, oscd.community
Path
rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_via_use_mhsta.yml
Raw Tags
attack.defense-evasionattack.t1027attack.executionattack.t1059.001
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