Detection rules › Sigma
Suspicious Git Clone
Detects execution of "git" in order to clone a remote repository that contain suspicious keywords which might be suspicious
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Reconnaissance |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| Sysmon | Event ID 1: Process creation |
Rule body
title: Suspicious Git Clone
id: aef9d1f1-7396-4e92-a927-4567c7a495c1
status: test
description: Detects execution of "git" in order to clone a remote repository that contain suspicious keywords which might be suspicious
references:
- https://gist.githubusercontent.com/MichaelKoczwara/12faba9c061c12b5814b711166de8c2f/raw/e2068486692897b620c25fde1ea258c8218fe3d3/history.txt
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-03
modified: 2023-01-10
tags:
- attack.reconnaissance
- attack.t1593.003
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith:
- '\git.exe'
- '\git-remote-https.exe'
- OriginalFileName: 'git.exe'
selection_cli:
CommandLine|contains:
- ' clone '
- 'git-remote-https '
selection_keyword:
CommandLine|contains:
# Add more suspicious keywords
- 'exploit'
- 'Vulns'
- 'vulnerability'
- 'RemoteCodeExecution'
- 'Invoke-'
- 'CVE-'
- 'poc-'
- 'ProofOfConcept'
# Add more vuln names
- 'proxyshell'
- 'log4shell'
- 'eternalblue'
- 'eternal-blue'
- 'MS17-'
condition: all of selection_*
falsepositives:
- Unknown
level: medium
Stages and Predicates
Stage 0: condition
all of selection_*Stage 1: selection_img
selection_img:
- Image|endswith:
- '\git.exe'
- '\git-remote-https.exe'
- OriginalFileName: 'git.exe'
Stage 2: selection_cli
selection_cli:
CommandLine|contains:
- ' clone '
- 'git-remote-https '
Stage 3: selection_keyword
selection_keyword:
CommandLine|contains:
- 'exploit'
- 'Vulns'
- 'vulnerability'
- 'RemoteCodeExecution'
- 'Invoke-'
- 'CVE-'
- 'poc-'
- 'ProofOfConcept'
- 'proxyshell'
- 'log4shell'
- 'eternalblue'
- 'eternal-blue'
- 'MS17-'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
CommandLine | match |
| field:"CommandLine" kind:match |
Image | ends_with |
| field:"Image" kind:ends_with |
OriginalFileName | eq |
| field:"OriginalFileName" kind:eq value:"git.exe" |