Sigma rule: TAIDOOR RAT DLL Load

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-48769577e698, updated 2021-11-27T00:00:00.000Z.

Rule

Title
TAIDOOR RAT DLL Load
Status
test
Level
high
Author
Florian Roth (Nextron Systems)
Date
2020-07-30
Modified
2021-11-27
File
rules-emerging-threats/2020/TA/TAIDOOR-RAT/proc_creation_win_apt_taidoor.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects specific process characteristics of Chinese TAIDOOR RAT malware load

Log source

product
windows
category
process_creation

Detection

selection1:
    CommandLine|contains:
        - 'dll,MyStart'
        - 'dll MyStart'
selection2a:
    CommandLine|endswith: ' MyStart'
selection2b:
    CommandLine|contains: 'rundll32.exe'
condition: selection1 or ( selection2a and selection2b )

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.execution
  • attack.stealth
  • attack.t1055.001
  • detection.emerging-threats

MITRE ATT&CK ids this rule names

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-emerging-threats/2020/TA/TAIDOOR-RAT/proc_creation_win_apt_taidoor.yml

Sources and licences

  • SigmaHQ

    "TAIDOOR RAT DLL Load" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2020/TA/TAIDOOR-RAT/proc_creation_win_apt_taidoor.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: TAIDOOR RAT DLL Load",
entity page, dataset version ref-48769577e698, updated 2021-11-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/d1aa3382-abab-446f-96ea-4de52908210b (accessed 2026-11-03).
Underlying source: SigmaHQ rule d1aa3382-abab-446f-96ea-4de52908210b, 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.