Diamond Sleet APT DNS Communication Indicators

title: Diamond Sleet APT DNS Communication Indicators
id: fba38e0f-4607-4344-bb8f-a4b50cdeef7f
status: test
description: Detects DNS queries related to Diamond Sleet APT activity
references:
    - https://www.microsoft.com/en-us/security/blog/2023/10/18/multiple-north-korean-threat-actors-exploiting-the-teamcity-cve-2023-42793-vulnerability/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-10-24
tags:
    - attack.command-and-control
    - detection.emerging-threats
logsource:
    product: windows
    category: dns_query
detection:
    selection:
        QueryName|contains:
            - '3dkit.org'
            - 'dersmarketim.com'
            - 'galerielamy.com'
            - 'olidhealth.com'
    condition: selection
falsepositives:
    - Might generate some false positive if triggered by a user during investigation for example.
level: high