{"id":"3eb8c339-a765-48cc-a150-4364c04652bf","title":"IIS WebServer Access Logs Deleted","description":"Detects the deletion of IIS WebServer access logs which may indicate an attempt to destroy forensic evidence","author":"Tim Rauch (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)","status":"test","level":"medium","date":"2022-09-16","modified":"2023-02-15","tags":["attack.stealth","attack.t1070"],"technique_ids":["T1070"],"logsource":{"category":"file_delete","product":"windows"},"falsepositives":["During uninstallation of the IIS service","During log rotation"],"references":["https://www.elastic.co/guide/en/security/current/webserver-access-logs-deleted.html"],"source_path":"rules/windows/file/file_delete/file_delete_win_delete_iis_access_logs.yml","source_sha256":"0458ee0fb2470c4bd6442e5b52eb5098c1c72c9300fb3f7e727f2b9bdc80036b","source_url":"https://github.com/anpa1200/sigma/blob/b249e9683190cffdcaf188ccbfb90bf4759844e1/rules/windows/file/file_delete/file_delete_win_delete_iis_access_logs.yml","license":"Detection Rule License 1.1","license_url":"https://github.com/SigmaHQ/Detection-Rule-License/blob/main/LICENSE.Detection.Rules.md","yaml":"title: IIS WebServer Access Logs Deleted\nid: 3eb8c339-a765-48cc-a150-4364c04652bf\nrelated:\n    - id: 0649be4a-aeb0-45b0-b89e-7f1668f6d9c0\n      type: similar\nstatus: test\ndescription: Detects the deletion of IIS WebServer access logs which may indicate an attempt to destroy forensic evidence\nreferences:\n    - https://www.elastic.co/guide/en/security/current/webserver-access-logs-deleted.html\nauthor: Tim Rauch (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)\ndate: 2022-09-16\nmodified: 2023-02-15\ntags:\n    - attack.stealth\n    - attack.t1070\nlogsource:\n    category: file_delete\n    product: windows\ndetection:\n    selection:\n        TargetFilename|contains: '\\inetpub\\logs\\LogFiles\\'\n        TargetFilename|endswith: '.log'\n    condition: selection\nfalsepositives:\n    - During uninstallation of the IIS service\n    - During log rotation\nlevel: medium\n","validation":"yaml_parsed_not_backend_compiled_or_live_validated","techniques":[{"key":"enterprise/T1070","id":"T1070","name":"Indicator Removal","page":"techniques/enterprise/T1070/"}],"data_path":"data/detection-rules/3eb8c339-a765-48cc-a150-4364c04652bf.json","kind":"sigma"}