TAIDOOR RAT DLL Load

calendar Oct 23, 2025 · attack.privilege-escalation attack.defense-evasion attack.execution attack.t1055.001 detection.emerging-threats  ·
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Detects specific process characteristics of Chinese TAIDOOR RAT malware load

Sigma rule (View on GitHub)

 1title: TAIDOOR RAT DLL Load
 2id: d1aa3382-abab-446f-96ea-4de52908210b
 3status: test
 4description: Detects specific process characteristics of Chinese TAIDOOR RAT malware load
 5references:
 6    - https://us-cert.cisa.gov/ncas/analysis-reports/ar20-216a
 7author: Florian Roth (Nextron Systems)
 8date: 2020-07-30
 9modified: 2021-11-27
10tags:
11    - attack.privilege-escalation
12    - attack.defense-evasion
13    - attack.execution
14    - attack.t1055.001
15    - detection.emerging-threats
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection1:
21        CommandLine|contains:
22            - 'dll,MyStart'
23            - 'dll MyStart'
24    selection2a:
25        CommandLine|endswith: ' MyStart'
26    selection2b:
27        CommandLine|contains: 'rundll32.exe'
28    condition: selection1 or ( selection2a and selection2b )
29falsepositives:
30    - Unknown
31level: high

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