Network Connections Where There Should Not Be (Notepad)

Looks for network connections from notepad. Inspired by the 2022 Red Canary Threat Detection report.

Sigma rule (View on GitHub)

 1title: Network Connections Where There Should Not Be (Notepad)
 2id: 6abd63f2-a8cc-40bc-b13b-7c60fa20b265
 3status: experimental
 4description: Looks for network connections from notepad. Inspired by the 2022 Red
 5    Canary Threat Detection report.
 6references:
 7    - https://redcanary.com/threat-detection-report/techniques/process-injection/
 8author: Micah Babinski
 9date: 2022/11/03
10tags:
11    - attack.privilege_escalation
12    - attack.t1055
13logsource:
14    category: network_connection
15    product: windows
16detection:
17    selection:
18        Image|endswith: '\notepad.exe'
19    condition: selection
20falsepositives:
21    - Unknown
22level: high```

References

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