{"id":"3b4b232a-af90-427c-a22f-30b0c0837b95","title":"CMSTP Execution Process Access","description":"Detects various indicators of Microsoft Connection Manager Profile Installer execution","author":"Nik Seetharaman","status":"stable","level":"high","date":"2018-07-16","modified":"2021-06-27","tags":["attack.stealth","attack.t1218.003","attack.execution","attack.t1559.001","attack.g0069","attack.g0080","car.2019-04-001"],"technique_ids":["T1218.003","T1559.001"],"logsource":{"product":"windows","category":"process_access"},"falsepositives":["Legitimate CMSTP use (unlikely in modern enterprise environments)"],"references":["https://web.archive.org/web/20190720093911/http://www.endurant.io/cmstp/detecting-cmstp-enabled-code-execution-and-uac-bypass-with-sysmon/"],"source_path":"rules/windows/process_access/proc_access_win_cmstp_execution_by_access.yml","source_sha256":"e84194eab91ba72d5ee9ba417037ba6d01fe9277df19ab475b98ea85bf78a856","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_access/proc_access_win_cmstp_execution_by_access.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: CMSTP Execution Process Access\nid: 3b4b232a-af90-427c-a22f-30b0c0837b95\nstatus: stable\ndescription: Detects various indicators of Microsoft Connection Manager Profile Installer execution\nreferences:\n    - https://web.archive.org/web/20190720093911/http://www.endurant.io/cmstp/detecting-cmstp-enabled-code-execution-and-uac-bypass-with-sysmon/\nauthor: Nik Seetharaman\ndate: 2018-07-16\nmodified: 2021-06-27\ntags:\n    - attack.stealth\n    - attack.t1218.003\n    - attack.execution\n    - attack.t1559.001\n    - attack.g0069\n    - attack.g0080\n    - car.2019-04-001\nlogsource:\n    product: windows\n    category: process_access\ndetection:\n    # Process Access Call Trace\n    selection:\n        CallTrace|contains: 'cmlua.dll'\n    condition: selection\nfalsepositives:\n    - Legitimate CMSTP use (unlikely in modern enterprise environments)\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1218.003","id":"T1218.003","name":"CMSTP","page":"techniques/enterprise/T1218.003/"},{"key":"enterprise/T1559.001","id":"T1559.001","name":"Component Object Model","page":"techniques/enterprise/T1559.001/"}],"data_path":"data/detection-rules/3b4b232a-af90-427c-a22f-30b0c0837b95.json","kind":"sigma"}