{"id":"c67fc22a-0be5-4b4f-aad5-2b32c4b69523","title":"Symlink Etc Passwd","description":"Detects suspicious command lines that look as if they would create symbolic links to /etc/passwd","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2019-04-05","modified":"2021-11-27","tags":["attack.t1204.001","attack.execution"],"technique_ids":["T1204.001"],"logsource":{"product":"linux"},"falsepositives":["Unknown"],"references":["https://www.qualys.com/2021/05/04/21nails/21nails.txt"],"source_path":"rules/linux/builtin/lnx_symlink_etc_passwd.yml","source_sha256":"7f44b24b0be3827ef3ad79a994780a3cce90f26100a5aab3c335a77fc2dfe745","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/builtin/lnx_symlink_etc_passwd.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Symlink Etc Passwd\nid: c67fc22a-0be5-4b4f-aad5-2b32c4b69523\nstatus: test\ndescription: Detects suspicious command lines that look as if they would create symbolic links to /etc/passwd\nreferences:\n    - https://www.qualys.com/2021/05/04/21nails/21nails.txt\nauthor: Florian Roth (Nextron Systems)\ndate: 2019-04-05\nmodified: 2021-11-27\ntags:\n    - attack.t1204.001\n    - attack.execution\nlogsource:\n    product: linux\ndetection:\n    keywords:\n        - 'ln -s -f /etc/passwd'\n        - 'ln -s /etc/passwd'\n    condition: keywords\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1204.001","id":"T1204.001","name":"Malicious Link","page":"techniques/enterprise/T1204.001/"}],"data_path":"data/detection-rules/c67fc22a-0be5-4b4f-aad5-2b32c4b69523.json","kind":"sigma"}