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Detectionhightest

Invoke-Obfuscation VAR++ LAUNCHER OBFUSCATION - PowerShell Module

Detects Obfuscated Powershell via VAR++ LAUNCHER

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Timur Zinniatullin, oscd.communityCreated Tue Oct 13Updated Fri Apr 05f3c89218-8c3d-4ba9-9974-f1d8e6a1b4a6windows
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|re: '(?i)&&set.*(\{\d\}){2,}\\"\s+?-f.*&&.*cmd.*/c' # FPs with |\/r
    condition: selection_4103
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 VAR++ LAUNCHER OBFUSCATION - PowerShell

Detects Obfuscated Powershell via VAR++ LAUNCHER

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

Rule Metadata
Rule ID
f3c89218-8c3d-4ba9-9974-f1d8e6a1b4a6
Status
test
Level
high
Type
Detection
Created
Tue Oct 13
Modified
Fri Apr 05
Author
Timur Zinniatullin, oscd.community
Path
rules/windows/powershell/powershell_module/posh_pm_invoke_obfuscation_via_var.yml
Raw Tags
attack.defense-evasionattack.t1027attack.executionattack.t1059.001
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