Detection rules › Sigma
Goofy Guineapig Backdoor IOC
Detects malicious indicators seen used by the Goofy Guineapig malware
Known false positives
- Unlikely
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | No specific technique |
| Stealth | No specific technique |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 11: FileCreate |
Rule body
title: Goofy Guineapig Backdoor IOC
id: f0bafe60-1240-4798-9e60-4364b97e6bad
status: test
description: Detects malicious indicators seen used by the Goofy Guineapig malware
references:
- https://www.ncsc.gov.uk/static-assets/documents/malware-analysis-reports/goofy-guineapig/NCSC-MAR-Goofy-Guineapig.pdf
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-05-14
tags:
- attack.execution
- detection.emerging-threats
- attack.stealth
logsource:
product: windows
category: file_event
detection:
selection:
TargetFilename:
- 'C:\ProgramData\GoogleUpdate\config.dat'
- 'C:\ProgramData\GoogleUpdate\GoogleUpdate.exe'
- 'C:\ProgramData\GoogleUpdate\GoogleUpdate\tmp.bat'
- 'C:\ProgramData\GoogleUpdate\goopdate.dll'
condition: selection
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetFilename:
- 'C:\ProgramData\GoogleUpdate\config.dat'
- 'C:\ProgramData\GoogleUpdate\GoogleUpdate.exe'
- 'C:\ProgramData\GoogleUpdate\GoogleUpdate\tmp.bat'
- 'C:\ProgramData\GoogleUpdate\goopdate.dll'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
TargetFilename | eq |
| field:"TargetFilename" kind:eq |