Cicada3301 Ransomware Execution via PSExec

 1title: Cicada3301 Ransomware Execution via PSExec
 2id: 79495647-d84d-4804-9a52-5263cfdf2c63
 3status: experimental
 4description: |
 5        Detects the use of a potentially-renamed psexec to run the Cicada3301 ransomware tool.
 6references:
 7    - https://engage.morphisec.com/threat-analysis-cicada3301
 8author: 'Micah Babinski, Based on Morphisec report by Michael Gorelik (@smgoreli)'
 9date: 2024-09-08
10tags:
11    - attack.execution
12    - attack.t1569
13    - attack.t1569.002
14    - attack.s0029
15logsource:
16    category: process_creation
17    product: windows
18detection:
19    selection_1:
20        - Image|endswith: '\psexec0.exe'
21        - OriginalFileName: 'psexec.c'
22    selection_2:
23        CommandLine|contains:
24            - '--key'
25            - '--path'
26            - '-p '
27            - '-s '
28            - '--no_local'
29            - '--no_net'
30            - '--no_impl'
31            - '--no_notes'
32    filter:
33        Image|endswith: '\psexec.exe'
34    condition: all of selection_* and not filter
35falsepositives:
36    - Unknown
37level: high```