GitHub Repo

Aws Snapshot Exfil

Date: 2021-07-20 ID: cc9b2602-efc9-11eb-926b-550bf0943fbb Author: Bhavin Patel Environment: attack_range Directory: aws_snapshot_exfil

Description

Adversaries may exfiltrate data by transferring the data, including backups of cloud environments, to another cloud account they control on the same service to avoid typical file transfers/downloads and network-based exfiltration detection.

MITRE ATT&CK Techniques

ID Technique Tactic
T1537 Transfer Data to Cloud Account Exfiltration

Environment Details

Field Value
Environment attack_range
Directory aws_snapshot_exfil
Test Date 2021-07-20

Datasets

The following datasets were collected during this attack simulation:

Aws_cloudtrail_events-Json

  • Path: /datasets/attack_techniques/T1537/aws_snapshot_exfil/aws_cloudtrail_events.json
  • Sourcetype: aws:cloudtrail
  • Source: aws_cloudtrail

Asl_ocsf_cloudtrail-Json

  • Path: /datasets/attack_techniques/T1537/aws_snapshot_exfil/asl_ocsf_cloudtrail.json
  • Sourcetype: aws:cloudtrail:lake
  • Source: aws_asl

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

Detection Name Type Source MITRE ATT&CK Analytic Story
AWS Exfiltration via EC2 Snapshot TTP Cloud T1537 Suspicious Cloud Instance Activities, Data Exfiltration
AWS EC2 Snapshot Shared Externally TTP Cloud T1537 Suspicious Cloud Instance Activities, Data Exfiltration
ASL AWS EC2 Snapshot Shared Externally TTP Cloud T1537 Suspicious Cloud Instance Activities, Data Exfiltration

Usage Instructions

Replay with Splunk Attack Data

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

1python replay.py --dataset /datasets/attack_techniques/T1537/aws_snapshot_exfil/aws_cloudtrail_events.json --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