Atomic Red Team
Description
Atomic Red Team test results of T1140, certutil.exe decode. Also included Invoke-CertUtil decoding files.
MITRE ATT&CK Techniques
| ID | Technique | Tactic |
|---|---|---|
| T1140 | Deobfuscate/Decode Files or Information | Defense Evasion |
Environment Details
| Field | Value |
|---|---|
| Environment | attack_range |
| Directory | atomic_red_team |
| Test Date | 2021-03-25 |
Datasets
The following datasets were collected during this attack simulation:
Windows-Sysmon
- Path:
/datasets/attack_techniques/T1140/atomic_red_team/windows-sysmon.log - Sourcetype:
XmlWinEventLog - Source:
XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
Expand_windows-Sysmon
- Path:
/datasets/attack_techniques/T1140/atomic_red_team/expand_windows-sysmon.log - Sourcetype:
XmlWinEventLog - Source:
XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
Related Detections
The following detections in our security content repository use this attack data for testing:
| Detection Name | Type | Source | MITRE ATT&CK | Analytic Story |
|---|---|---|---|---|
| Windows Cabinet File Extraction Via Expand | TTP |
Endpoint | T1105 | APT37 Rustonotto and FadeStealer |
| CertUtil With Decode Argument | TTP |
Endpoint | T1140 | Deobfuscate-Decode Files or Information, Living Off The Land, Forest Blizzard, APT29 Diplomatic Deceptions with WINELOADER, Storm-2460 CLFS Zero Day Exploitation, GhostRedirector IIS Module and Rungan Backdoor |
Usage Instructions
Replay with Splunk Attack Data
Replay attack data with replay.py from Splunk Attack Data.
1python replay.py --dataset /datasets/attack_techniques/T1140/atomic_red_team/windows-sysmon.log --index attack_data
Manual Import
- Download the dataset files from the paths listed above
- Configure your Splunk instance with the appropriate sourcetypes
- Import the logs using the Splunk Add Data wizard
Related Content
Find more detections and analytics for this attack technique in our security content repository.
Source: GitHub | Version: 1.0