Sigma rule: DNS Query To MEGA Hosting Website - DNS Client

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-da8123ba5d8f, updated 2023-01-16T00:00:00.000Z.

Rule

Title
DNS Query To MEGA Hosting Website - DNS Client
Status
test
Level
medium
Author
Nasreddine Bencherchali (Nextron Systems)
Date
2023-01-16
File
rules/windows/builtin/dns_client/win_dns_client_mega_nz.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects DNS queries for subdomains related to MEGA sharing website

Log source

product
windows
service
dns-client
definition
Requirements: Microsoft-Windows-DNS Client Events/Operational Event Log must be enabled/collected in order to receive the events.

Detection

selection:
    EventID: 3008
    QueryName|contains: 'userstorage.mega.co.nz'
condition: selection

False positives (as the rule lists them)

  • Legitimate DNS queries and usage of Mega

Tags

  • attack.exfiltration
  • attack.t1567.002

MITRE ATT&CK ids this rule names

Related rules

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/dns_client/win_dns_client_mega_nz.yml

Sources and licences

  • SigmaHQ

    "DNS Query To MEGA Hosting Website - DNS Client" by Nasreddine Bencherchali (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/builtin/dns_client/win_dns_client_mega_nz.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: DNS Query To MEGA Hosting Website - DNS Client",
entity page, dataset version ref-da8123ba5d8f, updated 2023-01-16T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/66474410-b883-415f-9f8d-75345a0a66a6 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 66474410-b883-415f-9f8d-75345a0a66a6, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.