Detection rules › Sigma
Potential Persistence Via MyComputer Registry Keys
Detects modification to the "Default" value of the "MyComputer" key and subkeys to point to a custom binary that will be launched whenever the associated action is executed (see reference section for example)
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Persistence | No specific technique |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 13 | RegistryEvent (Value Set) |
Rule body yaml
title: Potential Persistence Via MyComputer Registry Keys
id: 8fbe98a8-8f9d-44f8-aa71-8c572e29ef06
status: test
description: Detects modification to the "Default" value of the "MyComputer" key and subkeys to point to a custom binary that will be launched whenever the associated action is executed (see reference section for example)
references:
- https://www.hexacorn.com/blog/2017/01/18/beyond-good-ol-run-key-part-55/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-08-09
modified: 2024-01-11
tags:
- attack.persistence
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Explorer\MyComputer'
TargetObject|endswith: '(Default)'
condition: selection
falsepositives:
- Unlikely but if you experience FPs add specific processes and locations you would like to monitor for
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetObject|contains: '\Microsoft\Windows\CurrentVersion\Explorer\MyComputer'
TargetObject|endswith: '(Default)'
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 |
|---|---|---|
TargetObject | ends_with |
|
TargetObject | match |
|