{"id":"12827a56-61a4-476a-a9cb-f3068f191073","title":"HackTool - KrbRelayUp Execution","description":"Detects KrbRelayUp used to perform a universal no-fix local privilege escalation in Windows domain environments where LDAP signing is not enforced","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2022-04-26","modified":"2023-02-04","tags":["attack.credential-access","attack.t1558.003","attack.lateral-movement","attack.t1550.003"],"technique_ids":["T1550.003","T1558.003"],"logsource":{"category":"process_creation","product":"windows"},"falsepositives":["Unlikely"],"references":["https://github.com/Dec0ne/KrbRelayUp"],"source_path":"rules/windows/process_creation/proc_creation_win_hktl_krbrelayup.yml","source_sha256":"b372fd00467c5660b8060a415bed56f0c764bfbcdff387463cff9c846359505e","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/process_creation/proc_creation_win_hktl_krbrelayup.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: HackTool - KrbRelayUp Execution\nid: 12827a56-61a4-476a-a9cb-f3068f191073\nstatus: test\ndescription: Detects KrbRelayUp used to perform a universal no-fix local privilege escalation in Windows domain environments where LDAP signing is not enforced\nreferences:\n    - https://github.com/Dec0ne/KrbRelayUp\nauthor: Florian Roth (Nextron Systems)\ndate: 2022-04-26\nmodified: 2023-02-04\ntags:\n    - attack.credential-access\n    - attack.t1558.003\n    - attack.lateral-movement\n    - attack.t1550.003\nlogsource:\n    category: process_creation\n    product: windows\ndetection:\n    selection_img:\n        - Image|endswith: '\\KrbRelayUp.exe'\n        - OriginalFileName: 'KrbRelayUp.exe' # In case the file has been renamed after compilation\n    selection_cli_1:\n        CommandLine|contains|all:\n            - ' relay '\n            - ' -Domain '\n            - ' -ComputerName '\n    selection_cli_2:\n        CommandLine|contains|all:\n            - ' krbscm '\n            - ' -sc '\n    selection_cli_3:\n        CommandLine|contains|all:\n            - ' spawn '\n            - ' -d '\n            - ' -cn '\n            - ' -cp '\n    condition: 1 of selection_*\nfalsepositives:\n    - Unlikely\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1550.003","id":"T1550.003","name":"Pass the Ticket","page":"techniques/enterprise/T1550.003/"},{"key":"enterprise/T1558.003","id":"T1558.003","name":"Kerberoasting","page":"techniques/enterprise/T1558.003/"}],"data_path":"data/detection-rules/12827a56-61a4-476a-a9cb-f3068f191073.json","kind":"sigma"}