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PowerShell Called from an Executable Version Mismatch

Detects PowerShell called from an executable by the version mismatch method

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Sean Metcalf (source), Florian Roth (Nextron Systems)Created Sun Mar 05Updated Fri Oct 27c70e019b-1479-4b65-b0cc-cd0c6093a599windows
Log Source
WindowsPowerShell Classic
ProductWindows← raw: windows
CategoryPowerShell Classic← raw: ps_classic_start
Detection Logic
Detection Logic2 selectors
detection:
    selection_engine:
        Data|contains:
            - 'EngineVersion=2.'
            - 'EngineVersion=4.'
            - 'EngineVersion=5.'
    selection_host:
        Data|contains: 'HostVersion=3.'
    condition: all of selection_*
False Positives
Unknown

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

References
1
Resolving title…
adsecurity.org
MITRE ATT&CK
Rule Metadata
Rule ID
c70e019b-1479-4b65-b0cc-cd0c6093a599
Status
test
Level
high
Type
Detection
Created
Sun Mar 05
Modified
Fri Oct 27
Author
Sean Metcalf (source), Florian Roth (Nextron Systems)
Path
rules/windows/powershell/powershell_classic/posh_pc_exe_calling_ps.yml
Raw Tags
attack.defense-evasionattack.executionattack.t1059.001
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