O365

Description

Detection of suspicious mailbox rule creation.

MITRE ATT&CK Techniques

ID Technique Tactic
T1564.008 Email Hiding Rules Defense Evasion

Environment Details

Field Value
Environment attack_range
Directory o365
Test Date 2025-02-14

Datasets

The following datasets were collected during this attack simulation:

O365_suspicious_mailbox_rule

  • Path: /datasets/attack_techniques/T1564.008/o365/o365_suspicious_mailbox_rule.log
  • Sourcetype: o365:management:activity
  • Source: o365

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

Detection Name Type Source MITRE ATT&CK Analytic Story
O365 BEC Email Hiding Rule Created TTP Cloud T1564.008 Office 365 Account Takeover

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1564.008/o365/o365_suspicious_mailbox_rule.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

Find more detections and analytics for this attack technique in our security content repository.


Source: GitHub | Version: 1.0