IIS WebServer Access Logs Deleted

calendar Aug 12, 2024 · attack.defense-evasion attack.t1070  ·
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Detects the deletion of IIS WebServer access logs which may indicate an attempt to destroy forensic evidence

Sigma rule (View on GitHub)

 1title: IIS WebServer Access Logs Deleted
 2id: 3eb8c339-a765-48cc-a150-4364c04652bf
 3status: test
 4description: Detects the deletion of IIS WebServer access logs which may indicate an attempt to destroy forensic evidence
 5references:
 6    - https://www.elastic.co/guide/en/security/current/webserver-access-logs-deleted.html
 7author: Tim Rauch (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
 8date: 2022-09-16
 9modified: 2023-02-15
10tags:
11    - attack.defense-evasion
12    - attack.t1070
13logsource:
14    category: file_delete
15    product: windows
16detection:
17    selection:
18        TargetFilename|contains: '\inetpub\logs\LogFiles\'
19        TargetFilename|endswith: '.log'
20    condition: selection
21falsepositives:
22    - During uninstallation of the IIS service
23    - During log rotation
24level: medium

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