Sigma rule: PowerShell Hotfix Enumeration

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-ac165d5fd982, updated 2022-06-21T00:00:00.000Z.

Rule

Title
PowerShell Hotfix Enumeration
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2022-06-21
File
rules/windows/powershell/powershell_script/posh_ps_hotfix_enum.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects call to "Win32_QuickFixEngineering" in order to enumerate installed hotfixes often used in "enum" scripts by attackers

Log source

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

Detection

selection:
    ScriptBlockText|contains|all:
        - 'Win32_QuickFixEngineering'
        - 'HotFixID'
condition: selection

False positives (as the rule lists them)

  • Legitimate administration scripts

Tags

  • attack.discovery

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_hotfix_enum.yml

Sources and licences

  • SigmaHQ

    "PowerShell Hotfix Enumeration" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_hotfix_enum.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: PowerShell Hotfix Enumeration",
entity page, dataset version ref-ac165d5fd982, updated 2022-06-21T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/f5d1def8-1de0-4a0e-9794-1f6f27dd605c (accessed 2026-11-03).
Underlying source: SigmaHQ rule f5d1def8-1de0-4a0e-9794-1f6f27dd605c, 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.