OpenCanary - SMB File Open Request

Detects instances where an SMB service on an OpenCanary node has had a file open request.

Sigma rule (View on GitHub)

 1title: OpenCanary - SMB File Open Request
 2id: 22777c9e-873a-4b49-855f-6072ab861a52
 3status: experimental
 4description: Detects instances where an SMB service on an OpenCanary node has had a file open request.
 5references:
 6    - https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
 7    - https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
 8author: Security Onion Solutions
 9date: 2024/03/08
10tags:
11    - attack.lateral_movement
12    - attack.collection
13    - attack.t1021
14    - attack.t1005
15logsource:
16    category: application
17    product: opencanary
18detection:
19    selection:
20        logtype: 5000
21    condition: selection
22falsepositives:
23    - Unlikely
24level: high

References

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