{"id":"472159c5-31b9-4f56-b794-b766faa8b0a7","title":"Suspicious LSASS Access Via MalSecLogon","description":"Detects suspicious access to LSASS handle via a call trace to \"seclogon.dll\" with a suspicious access right.","author":"Samir Bousseaden (original elastic rule), Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"high","date":"2022-06-29","modified":"","tags":["attack.credential-access","attack.t1003.001"],"technique_ids":["T1003.001"],"logsource":{"category":"process_access","product":"windows"},"falsepositives":["Unknown"],"references":["https://twitter.com/SBousseaden/status/1541920424635912196","https://github.com/elastic/detection-rules/blob/2bc1795f3d7bcc3946452eb4f07ae799a756d94e/rules/windows/credential_access_lsass_handle_via_malseclogon.toml","https://splintercod3.blogspot.com/p/the-hidden-side-of-seclogon-part-3.html"],"source_path":"rules/windows/process_access/proc_access_win_lsass_seclogon_access.yml","source_sha256":"48ab68741167fa31699b9eb167313f70de067b8b424ce5f145e5a222b0b3da25","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_access/proc_access_win_lsass_seclogon_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: Suspicious LSASS Access Via MalSecLogon\nid: 472159c5-31b9-4f56-b794-b766faa8b0a7\nstatus: test\ndescription: Detects suspicious access to LSASS handle via a call trace to \"seclogon.dll\" with a suspicious access right.\nreferences:\n    - https://twitter.com/SBousseaden/status/1541920424635912196\n    - https://github.com/elastic/detection-rules/blob/2bc1795f3d7bcc3946452eb4f07ae799a756d94e/rules/windows/credential_access_lsass_handle_via_malseclogon.toml\n    - https://splintercod3.blogspot.com/p/the-hidden-side-of-seclogon-part-3.html\nauthor: Samir Bousseaden (original elastic rule), Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-06-29\ntags:\n    - attack.credential-access\n    - attack.t1003.001\nlogsource:\n    category: process_access\n    product: windows\ndetection:\n    selection:\n        TargetImage|endswith: '\\lsass.exe'\n        SourceImage|endswith: '\\svchost.exe'\n        GrantedAccess: '0x14c0'\n        CallTrace|contains: 'seclogon.dll'\n    condition: selection\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1003.001","id":"T1003.001","name":"LSASS Memory","page":"techniques/enterprise/T1003.001/"}],"data_path":"data/detection-rules/472159c5-31b9-4f56-b794-b766faa8b0a7.json","kind":"sigma"}