O365 Sus File Activity
Description
Sample of events when an actor attempts to exfiltrate data from sharepoint using various methods.
MITRE ATT&CK Techniques
| ID | Technique | Tactic |
|---|---|---|
| T1567 | Exfiltration Over Web Service | Exfiltration |
Environment Details
| Field | Value |
|---|---|
| Environment | attack_range |
| Directory | o365_sus_file_activity |
| Test Date | 2025-01-28 |
Datasets
The following datasets were collected during this attack simulation:
O365_sus_file_activity
- Path:
/datasets/attack_techniques/T1567/o365_sus_file_activity/o365_sus_file_activity.log - Sourcetype:
o365:management:activity - Source:
o365
Related Detections
The following detections in our security content repository use this attack data for testing:
| Detection Name | Type | Source | MITRE ATT&CK | Analytic Story |
|---|---|---|---|---|
| O365 Exfiltration via File Sync Download | Anomaly |
Cloud | T1567, T1530 | Data Exfiltration, Office 365 Account Takeover |
| O365 Exfiltration via File Access | Anomaly |
Cloud | T1567, T1530 | Data Exfiltration, Office 365 Account Takeover |
| O365 Exfiltration via File Download | Anomaly |
Cloud | T1567, T1530 | Data Exfiltration, 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/T1567/o365_sus_file_activity/o365_sus_file_activity.log --index attack_data
Manual Import
- Download the dataset files from the paths listed above
- Configure your Splunk instance with the appropriate sourcetypes
- 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