GitHub Repo

Outlook Writing Zip

Date: 2026-01-23 ID: 822a7bed-b71f-4818-9f60-d1799a23528c Author: Bhavin Patel, Splunk Environment: attack_range Directory: outlook_writing_zip

Description

This data is collected from an industary event that shows the execution of outlook.exe writing a zip file to the disk.

MITRE ATT&CK Techniques

ID Technique Tactic
T1566.001 Spearphishing Attachment Initial Access

Environment Details

Field Value
Environment attack_range
Directory outlook_writing_zip
Test Date 2026-01-23

Datasets

The following datasets were collected during this attack simulation:

Outlook_writing_zip

  • Path: /datasets/attack_techniques/T1566.001/outlook_writing_zip/outlook_writing_zip.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
Detect Outlook exe writing a zip file Anomaly Endpoint T1566.001 Amadey, APT37 Rustonotto and FadeStealer, Meduza Stealer, PXA Stealer, Remcos, Spearphishing Attachments

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1566.001/outlook_writing_zip/outlook_writing_zip.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