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sbousseaden logoEVTX-ATTACK-SAMPLES

Windows Events Attack Samples

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Quick Overview

EVTX-ATTACK-SAMPLES is a GitHub repository maintained by Samir Bousseaden that provides a collection of Windows Event Log (EVTX) samples associated with various attack techniques. This repository serves as a valuable resource for security researchers, threat hunters, and blue team members to study and analyze event logs related to different types of attacks and malicious activities.

Pros

  • Comprehensive collection of EVTX samples covering a wide range of attack techniques
  • Organized structure with samples categorized by MITRE ATT&CK tactics and techniques
  • Regularly updated with new samples and contributions from the community
  • Valuable resource for testing and improving detection capabilities

Cons

  • Large repository size due to the nature of EVTX files, which can be resource-intensive to download and store
  • Some samples may become outdated as Windows and attack techniques evolve
  • Requires additional tools and knowledge to analyze and interpret the EVTX files effectively
  • May not cover all possible variations of attack techniques or emerging threats

Note: As this is not a code library, the code example and quick start sections have been omitted as per the instructions.

Competitor Comparisons

JPCERTCC logo

LogonTracer

2,693

Investigate malicious Windows logon by visualizing and analyzing Windows event log

Pros of LogonTracer

  • Provides a visual analysis tool for investigating lateral movement and detecting compromised accounts
  • Offers a web-based interface for easier interaction and data visualization
  • Supports multiple data sources, including Windows Event logs and Active Directory logs

Cons of LogonTracer

  • Focuses primarily on logon events, while EVTX-ATTACK-SAMPLES covers a broader range of attack techniques
  • Requires more setup and dependencies compared to the straightforward sample collection in EVTX-ATTACK-SAMPLES
  • May have a steeper learning curve for users unfamiliar with graph-based analysis tools

Code Comparison

LogonTracer (Python):

def parse_evtx(evtx_file, output_dir):
    parser = PyEvtxParser(evtx_file)
    for record in parser.records():
        # Process and analyze event records

EVTX-ATTACK-SAMPLES (No specific code, as it's a collection of sample files)

4688 - Process Creation.evtx
4624 - Successful Logon.evtx
5140 - Network Share Object was accessed.evtx

LogonTracer focuses on parsing and analyzing event logs programmatically, while EVTX-ATTACK-SAMPLES provides raw EVTX files for various attack scenarios. The code comparison highlights the different approaches: LogonTracer offers a tool for processing logs, whereas EVTX-ATTACK-SAMPLES serves as a reference dataset for security analysts and researchers.

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windows-event-forwarding

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Pros of windows-event-forwarding

  • Provides comprehensive documentation and guidance for implementing Windows Event Forwarding
  • Includes ready-to-use WEF subscriptions and Group Policy Objects (GPOs)
  • Offers a scalable solution for centralized event collection in enterprise environments

Cons of windows-event-forwarding

  • Focuses primarily on configuration and implementation, rather than providing sample event logs
  • May require more setup and infrastructure compared to analyzing standalone EVTX files
  • Limited to Windows Event Forwarding technology, while EVTX-ATTACK-SAMPLES covers a broader range of attack scenarios

Code Comparison

EVTX-ATTACK-SAMPLES (PowerShell script to parse EVTX files):

Get-WinEvent -Path ".\*.evtx" | Where-Object {$_.Id -eq 4688} | Select-Object TimeCreated, Message

windows-event-forwarding (WEF subscription XML):

<Subscription xmlns="http://schemas.microsoft.com/2006/03/windows/events/subscription">
  <Query>
    <QueryList>
      <Query Id="0">
        <Select Path="Security">*[System[(EventID=4688)]]</Select>
      </Query>
    </QueryList>
  </Query>
</Subscription>

Both repositories focus on Windows event logs, but EVTX-ATTACK-SAMPLES provides actual log samples for various attack techniques, while windows-event-forwarding offers tools and configurations for collecting and forwarding events in a centralized manner.

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Pros of Sigma

  • Provides a generic, open-source signature format for describing log events
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Cons of Sigma

  • Requires additional tools or scripts to convert rules into SIEM-specific formats
  • May not cover all possible attack scenarios or log sources
  • Learning curve for writing effective Sigma rules

Code Comparison

EVTX-ATTACK-SAMPLES typically contains raw Windows Event Log XML data:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Security-Auditing" Guid="{54849625-5478-4994-A5BA-3E3B0328C30D}"/>
    <EventID>4688</EventID>
    <!-- ... -->
  </System>
  <!-- ... -->
</Event>

Sigma rules are written in YAML format:

title: Suspicious Process Creation
status: experimental
description: Detects suspicious process creation
logsource:
  product: windows
  service: security
detection:
  selection:
    EventID: 4688
    CommandLine|contains: 'suspicious_command'
  condition: selection

The EVTX-ATTACK-SAMPLES repository provides raw event log samples, while Sigma offers a flexible rule format for detecting such events across different SIEM systems.

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Pros of OSSEM

  • Comprehensive documentation and standardization of security event logs
  • Collaborative community-driven project with regular updates
  • Provides a structured approach to understanding and analyzing event logs

Cons of OSSEM

  • More complex and requires a deeper understanding of log structures
  • May have a steeper learning curve for beginners
  • Focuses on documentation rather than providing actual log samples

Code Comparison

EVTX-ATTACK-SAMPLES typically contains raw EVTX files, which can be viewed using Event Viewer or parsed with PowerShell:

Get-WinEvent -Path .\sample.evtx | Select-Object -First 5

OSSEM provides documentation and schemas, often in YAML format:

title: Process Creation
description: Windows process creation events
event_log: Security
event_id: 4688

While EVTX-ATTACK-SAMPLES offers real-world examples of attack-related logs, OSSEM provides a structured framework for understanding and standardizing log data. EVTX-ATTACK-SAMPLES is more practical for immediate analysis, while OSSEM is better suited for long-term log management and standardization efforts.

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README

Windows EVTX Samples [200 EVTX examples]:

alt text

This is a container for windows events samples associated to specific attack and post-exploitation techniques. Can be useful for:

  • Testing your detection scripts based on EVTX parsing

  • Training on DFIR and threat hunting using event logs

  • Designing detection use cases using Windows and Sysmon event logs

  • Avoid/Bypass the noisy techniques if you are a redteamer

N.B: Mapping has been done to the level of ATT&CK technique (not procedure).

Details of the EVTX content mapped to MITRE tactics can be found here, stats summary:

alt text

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Overview of the covered TTPs using attack-navigator:

alt text

Winlogbeat-Bulk-Read

Included is a PowerShell script that can loop through, parse, and replay evtx files with winlogbeat. This can be useful to replay logs into an ELK stack or to a local file. By default this script will output logs to .\winlogbeat\events.json as configured in the winlogbeat_example.yml file, you can configure any of your own destinations in winlogbeat.yml (excluded from git) and the example config file will be ignored if winlogbeat.yml is found.

Winlogbeat-Bulk-Read Usage:

## Display help along with examples:
.\Winlogbeat-Bulk-Read.ps1 -Help

## Run with defaults (read ./ recursively and look for winlogbeat.exe in your path):
.\Winlogbeat-Bulk-Read.ps1

## If you want to point this script at another directory with evtx files and specify a path to the winlogbeat.exe binary:
.\Winlogbeat-Bulk-Read.ps1 -Exe ~\Downloads\winlogbeat\winlogbeat.exe -Source "..\EVTX-ATTACK-SAMPLES\"

License:

EVTX_ATT&CK's GNU General Public License