Detection rules › Sigma
Wmiprvse Wbemcomn DLL Hijack - File
Detects a threat actor creating a file named wbemcomn.dll in the C:\Windows\System32\wbem\ directory over the network and loading it for a WMI DLL Hijack scenario.
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1047 Windows Management Instrumentation |
| Lateral Movement | T1021.002 Remote Services: SMB/Windows Admin Shares |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 11 | FileCreate |
Rule body yaml
title: Wmiprvse Wbemcomn DLL Hijack - File
id: 614a7e17-5643-4d89-b6fe-f9df1a79641c
status: test
description: Detects a threat actor creating a file named `wbemcomn.dll` in the `C:\Windows\System32\wbem\` directory over the network and loading it for a WMI DLL Hijack scenario.
references:
- https://threathunterplaybook.com/hunts/windows/201009-RemoteWMIWbemcomnDLLHijack/notebook.html
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research)
date: 2020-10-12
modified: 2022-12-02
tags:
- attack.execution
- attack.t1047
- attack.lateral-movement
- attack.t1021.002
logsource:
product: windows
category: file_event
detection:
selection:
Image: System
TargetFilename|endswith: '\wbem\wbemcomn.dll'
condition: selection
falsepositives:
- Unknown
level: critical
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
Image: System
TargetFilename|endswith: '\wbem\wbemcomn.dll'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
Image | eq |
|
TargetFilename | ends_with |
|