Sigma rule: Malicious ShellIntel PowerShell Commandlets

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-e377fae8a3bf, updated 2023-01-02T00:00:00.000Z.

Rule

Title
Malicious ShellIntel PowerShell Commandlets
Status
test
Level
high
Author
Max Altgelt (Nextron Systems), Tobias Michalski (Nextron Systems)
Date
2021-08-09
Modified
2023-01-02
File
rules/windows/powershell/powershell_script/posh_ps_shellintel_malicious_commandlets.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Commandlet names from ShellIntel exploitation scripts.

Log source

product
windows
category
ps_script
definition
Requirements: Script Block Logging must be enabled

Detection

selection:
    ScriptBlockText|contains:
        - 'Invoke-SMBAutoBrute'
        - 'Invoke-GPOLinks'
        # - 'Out-Minidump' # Covered in 89819aa4-bbd6-46bc-88ec-c7f7fe30efa6
        - 'Invoke-Potato'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.execution
  • attack.t1059.001

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_shellintel_malicious_commandlets.yml

Sources and licences

  • SigmaHQ

    "Malicious ShellIntel PowerShell Commandlets" by Max Altgelt (Nextron Systems), Tobias Michalski (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_shellintel_malicious_commandlets.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Malicious ShellIntel PowerShell Commandlets",
entity page, dataset version ref-e377fae8a3bf, updated 2023-01-02T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/402e1e1d-ad59-47b6-bf80-1ee44985b3a7 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 402e1e1d-ad59-47b6-bf80-1ee44985b3a7, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.