Sigma rule: Detected Windows Software Discovery - PowerShell

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-3b680ca8ae5c, updated 2022-12-02T00:00:00.000Z.

Rule

Title: Detected Windows Software Discovery - PowerShell
Status: test
Level: medium
Author: Nikita Nazarov, oscd.community
Date: 2020-10-16
Modified: 2022-12-02
File: rules/windows/powershell/powershell_script/posh_ps_software_discovery.yml
Commit: ccbb0369507f796db0b0ae6854c8a2be471b9d84

Adversaries may attempt to enumerate software for a variety of reasons, such as figuring out what security measures are present or if the compromised system has a version of software that is vulnerable.

Log source

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

Detection

selection:
    ScriptBlockText|contains|all:
        # Example: Get-ItemProperty HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate | Format-Table -Autosize
        - 'get-itemProperty'
        - '\software\'
        - 'select-object'
        - 'format-table'
condition: selection

False positives (as the rule lists them)

Legitimate administration activities

MITRE ATT&CK ids this rule names

T1518

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_software_discovery.yml

Sources and licences

SigmaHQ
"Detected Windows Software Discovery - PowerShell" by Nikita Nazarov, oscd.community (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_software_discovery.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: Detected Windows Software Discovery - PowerShell",
entity page, dataset version ref-3b680ca8ae5c, updated 2022-12-02T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/2650dd1a-eb2a-412d-ac36-83f06c4f2282 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 2650dd1a-eb2a-412d-ac36-83f06c4f2282, 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.