GitHub Repo

Atomic Red Team

Date: 2020-10-08 ID: cc9b25f3-efc9-11eb-926b-550bf0943fbb Author: Patrick Bareiss Environment: attack_range Directory: atomic_red_team

Description

Atomic Test Results: Successful Execution of test T1027-2 Execute base64-encoded PowerShell Successful Execution of test T1027-3 Execute base64-encoded PowerShell from Windows Registry Return value unclear for test T1027-4 Execution from Compressed File

MITRE ATT&CK Techniques

ID Technique Tactic
T1027 Obfuscated Files or Information Defense Evasion

Environment Details

Field Value
Environment attack_range
Directory atomic_red_team
Test Date 2020-10-08

Datasets

The following datasets were collected during this attack simulation:

Windows-Sysmon

  • Path: /datasets/attack_techniques/T1027/atomic_red_team/windows-sysmon.log
  • Sourcetype: XmlWinEventLog
  • Source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational

The following detections in our security content repository use this attack data for testing:

Detection Name Type Source MITRE ATT&CK Analytic Story
Linux Obfuscated Files or Information Base64 Decode Anomaly Endpoint T1027 Linux Living Off The Land
Linux Decode Base64 to Shell TTP Endpoint T1027, T1059.004 Linux Living Off The Land
Malicious PowerShell Process - Encoded Command Hunting Endpoint T1027 CISA AA22-320A, Hermetic Wiper, Sandworm Tools, Qakbot, Volt Typhoon, NOBELIUM Group, Data Destruction, Lumma Stealer, Malicious PowerShell, DarkCrystal RAT, WhisperGate, Crypto Stealer, Microsoft SharePoint Vulnerabilities, Scattered Spider, GhostRedirector IIS Module and Rungan Backdoor, Microsoft WSUS CVE-2025-59287

Usage Instructions

Replay with Splunk Attack Data

Replay attack data with replay.py from Splunk Attack Data.

1python replay.py --dataset /datasets/attack_techniques/T1027/atomic_red_team/windows-sysmon.log --index attack_data

Manual Import

  1. Download the dataset files from the paths listed above
  2. Configure your Splunk instance with the appropriate sourcetypes
  3. 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