GitHub Repo

Obfuscated Powershell

Date: 2021-01-19 ID: cc9b2648-efc9-11eb-926b-550bf0943fbb Author: Patrick Bareiss Environment: attack_range Directory: obfuscated_powershell

Description

Manual generation of obfuscated powershell commands using Invoke-Obfuscation

MITRE ATT&CK Techniques

ID Technique Tactic
T1059.001 PowerShell Execution

Environment Details

Field Value
Environment attack_range
Directory obfuscated_powershell
Test Date 2021-01-19

Datasets

The following datasets were collected during this attack simulation:

Windows-Sysmon

  • Path: /datasets/attack_techniques/T1059.001/obfuscated_powershell/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
Malicious PowerShell Process With Obfuscation Techniques TTP Endpoint T1059.001 Malicious PowerShell, Hermetic Wiper, Data Destruction, GhostRedirector IIS Module and Rungan Backdoor, Hellcat Ransomware

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1059.001/obfuscated_powershell/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