{"id":"f7644214-0eb0-4ace-9455-331ec4c09253","title":"Kerberos Manipulation","description":"Detects failed Kerberos TGT issue operation. This can be a sign of manipulations of TGT messages by an attacker.","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2017-02-10","modified":"2024-01-16","tags":["attack.credential-access","attack.t1212"],"technique_ids":["T1212"],"logsource":{"product":"windows","service":"security"},"falsepositives":["Faulty legacy applications"],"references":["https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4771"],"source_path":"rules/windows/builtin/security/win_security_susp_kerberos_manipulation.yml","source_sha256":"3da7ed11cbdbedd8a835ebf9fc7f71167b1b6d130e666792a40d36c46c91bb21","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/builtin/security/win_security_susp_kerberos_manipulation.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Kerberos Manipulation\nid: f7644214-0eb0-4ace-9455-331ec4c09253\nstatus: test\ndescription: Detects failed Kerberos TGT issue operation. This can be a sign of manipulations of TGT messages by an attacker.\nreferences:\n    - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-10/security/threat-protection/auditing/event-4771\nauthor: Florian Roth (Nextron Systems)\ndate: 2017-02-10\nmodified: 2024-01-16\ntags:\n    - attack.credential-access\n    - attack.t1212\nlogsource:\n    product: windows\n    service: security\ndetection:\n    selection:\n        EventID:\n            - 675\n            - 4768\n            - 4769\n            - 4771\n        Status:\n            - '0x9'\n            - '0xA'\n            - '0xB'\n            - '0xF'\n            - '0x10'\n            - '0x11'\n            - '0x13'\n            - '0x14'\n            - '0x1A'\n            - '0x1F'\n            - '0x21'\n            - '0x22'\n            - '0x23'\n            - '0x24'\n            - '0x26'\n            - '0x27'\n            - '0x28'\n            - '0x29'\n            - '0x2C'\n            - '0x2D'\n            - '0x2E'\n            - '0x2F'\n            - '0x31'\n            - '0x32'\n            - '0x3E'\n            - '0x3F'\n            - '0x40'\n            - '0x41'\n            - '0x43'\n            - '0x44'\n    condition: selection\nfalsepositives:\n    - Faulty legacy applications\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1212","id":"T1212","name":"Exploitation for Credential Access","page":"techniques/enterprise/T1212/"}],"data_path":"data/detection-rules/f7644214-0eb0-4ace-9455-331ec4c09253.json","kind":"sigma"}