Windows File Creation: PowerShell webAdministration Module Path Used in CVE-2022-24527 LPE

Flags Windows file events creating webAdministration.psm1 under PowerShell modules, consistent with CVE-2022-24527 LPE behavior.

FreeReviewedSigma · High · v5

Product: windows
Category: file_event
Author: Florian Roth (Nextron Systems) (SigmaHQ), DRL 1.1
Published: 2022-04-13
Updated: 2026-07-31

Analysis Detection

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.001PowerShell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule identifies file creation events where the target filename ends with WindowsPowerShell\Modules\webAdministration\webAdministration.psm1, which is expected to appear during local privilege exploitation of CVE-2022-24527. Attackers may leverage this behavior to establish elevated execution context by placing or modifying PowerShell module files. Detection relies on Windows file event telemetry that includes the target filename and associated user context.

Reporting behind it

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Windows File Creation: PowerShell webAdministration Module Path Used in CVE-2022-24527 LPE

Pivot detection · T1059.001 · 9 related

Changelog

v5
Candidate ingested via manual entry.2026-07-31
v4
Candidate ingested via manual entry.2026-07-31
v3
Candidate ingested via manual entry.2026-07-31
v2
Candidate ingested via manual entry.2026-07-31
v1
No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

windows-file-creation-of-webadministration-psm1-during-cve-2022-24527-lpe-attemp-e0a41412

title: "Windows File Creation: PowerShell webAdministration Module Path Used in CVE-2022-24527 LPE"
id: 8c5efb97-807e-4918-a5b2-b52e0c2275dc
status: test
description: This rule identifies file creation events where the target filename ends with WindowsPowerShell\Modules\webAdministration\webAdministration.psm1, which is expected to appear during local privilege exploitation of CVE-2022-24527. Attackers may leverage this behavior to establish elevated execution context by placing or modifying PowerShell module files. Detection relies on Windows file event telemetry that includes the target filename and associated user context.
references:
  - https://www.rapid7.com/blog/post/2022/04/12/cve-2022-24527-microsoft-connected-cache-local-privilege-escalation-fixed/
  - https://github.com/SigmaHQ/sigma/blob/master/rules-emerging-threats/2022/Exploits/CVE-2022-24527/file_event_win_cve_2022_24527_lpe.yml
author: Florian Roth (Nextron Systems), Huntrule Team
date: 2022-04-13
tags:
  - attack.execution
  - attack.privilege-escalation
  - attack.t1059.001
  - cve.2022-24527
  - detection.emerging-threats
logsource:
  category: file_event
  product: windows
detection:
  selection:
    TargetFilename|endswith: WindowsPowerShell\Modules\webAdministration\webAdministration.psm1
  filter:
    User|contains:
      - AUTHORI
      - AUTORI
  condition: selection and not filter
falsepositives:
  - Unknown
level: high
license: DRL-1.1
related:
  - id: e0a41412-c69a-446f-8e6e-0e6d7483dad7
    type: derived

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