{"id":"c67e0c98-4d39-46ee-8f6b-437ebf6b950e","title":"Shellshock Expression","description":"Detects shellshock expressions in log files","author":"Florian Roth (Nextron Systems)","status":"test","level":"high","date":"2017-03-14","modified":"2022-10-09","tags":["attack.persistence","attack.t1505.003"],"technique_ids":["T1505.003"],"logsource":{"product":"linux"},"falsepositives":["Unknown"],"references":["https://owasp.org/www-pdf-archive/Shellshock_-_Tudor_Enache.pdf"],"source_path":"rules/linux/builtin/lnx_shellshock.yml","source_sha256":"a8f9292981105bad5c92c36b36350d2d81d93ac33388368b0f05f2bb0ca0d58d","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/linux/builtin/lnx_shellshock.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: Shellshock Expression\nid: c67e0c98-4d39-46ee-8f6b-437ebf6b950e\nstatus: test\ndescription: Detects shellshock expressions in log files\nreferences:\n    - https://owasp.org/www-pdf-archive/Shellshock_-_Tudor_Enache.pdf\nauthor: Florian Roth (Nextron Systems)\ndate: 2017-03-14\nmodified: 2022-10-09\ntags:\n    - attack.persistence\n    - attack.t1505.003\nlogsource:\n    product: linux\ndetection:\n    keywords:\n        - '(){:;};'\n        - '() {:;};'\n        - '() { :;};'\n        - '() { :; };'\n    condition: keywords\nfalsepositives:\n    - Unknown\nlevel: high\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1505.003","id":"T1505.003","name":"Web Shell","page":"techniques/enterprise/T1505.003/"}],"data_path":"data/detection-rules/c67e0c98-4d39-46ee-8f6b-437ebf6b950e.json","kind":"sigma"}