{"id":"d08a2711-ee8b-4323-bdec-b7d85e892b31","title":"PUA - CsExec Execution","description":"Detects the use of the lesser known remote execution tool named CsExec a PsExec alternative","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-08-22","modified":"2023-02-21","tags":["attack.resource-development","attack.t1587.001","attack.execution","attack.t1569.002"],"technique_ids":["T1569.002","T1587.001"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unknown"],"references":["https://github.com/malcomvetter/CSExec","https://www.microsoft.com/security/blog/2022/05/09/ransomware-as-a-service-understanding-the-cybercrime-gig-economy-and-how-to-protect-yourself/"],"source_path":"rules/windows/process_creation/proc_creation_win_pua_csexec.yml","source_sha256":"1f008989e574197712cce0b43493d1dd5391d84809a2cdc5943bc703d0df6b0e","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_pua_csexec.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: PUA - CsExec Execution\nid: d08a2711-ee8b-4323-bdec-b7d85e892b31\nstatus: test\ndescription: Detects the use of the lesser known remote execution tool named CsExec a PsExec alternative\nreferences:\n    - https://github.com/malcomvetter/CSExec\n    - https://www.microsoft.com/security/blog/2022/05/09/ransomware-as-a-service-understanding-the-cybercrime-gig-economy-and-how-to-protect-yourself/\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-08-22\nmodified: 2023-02-21\ntags:\n    - attack.resource-development\n    - attack.t1587.001\n    - attack.execution\n    - attack.t1569.002\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection:\n        Image|endswith: '\\csexec.exe'\n    selection_pe:\n        Description: 'csexec'\n    condition: 1 of selection*\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1569.002","id":"T1569.002","name":"Service Execution","page":"techniques/enterprise/T1569.002/"},{"key":"enterprise/T1587.001","id":"T1587.001","name":"Malware","page":"techniques/enterprise/T1587.001/"}],"data_path":"data/detection-rules/d08a2711-ee8b-4323-bdec-b7d85e892b31.json","kind":"sigma"}