26 lines
668 B
YAML
26 lines
668 B
YAML
|
|
title: DNS Query for MEGA.io Upload Domain
|
|
author: Aaron Greetham (@beardofbinary) - NCC Group
|
|
date: 2021/05/26
|
|
description: Detects DNS queries for subdomains used for upload to MEGA.io
|
|
detection:
|
|
SELECTION_1:
|
|
EventID: 22
|
|
SELECTION_2:
|
|
QueryName: '*userstorage.mega.co.nz*'
|
|
condition: (SELECTION_1 and SELECTION_2)
|
|
falsepositives:
|
|
- Legitimate Mega upload
|
|
id: 613c03ba-0779-4a53-8a1f-47f914a4ded3
|
|
level: high
|
|
logsource:
|
|
category: dns_query
|
|
product: windows
|
|
references:
|
|
- https://research.nccgroup.com/2021/05/27/detecting-rclone-an-effective-tool-for-exfiltration/
|
|
status: experimental
|
|
tags:
|
|
- attack.exfiltration
|
|
- attack.t1567.002
|
|
ruletype: SIGMA
|