Suspicious Network Connections (RedCanary Threat Detection Report)

Detects notepad making network connections, a potential process injection signal. Part of the RedCanary 2023 Threat Detection Report.

Sigma rule (View on GitHub)

 1title: Suspicious Network Connections (RedCanary Threat Detection Report)
 2id: f3b0b17c-0e4b-45e5-b88e-521d2c3f6ae1
 3status: experimental
 4description: Detects notepad making network connections, a potential process injection signal. Part of the RedCanary 2023 Threat Detection Report.
 5references:
 6    - https://redcanary.com/threat-detection-report/techniques/process-injection/
 7author: RedCanary, Sigma formatting by Micah Babinski
 8date: 2023/05/10
 9tags:
10    - attack.privilege_escalation
11    - attack.t1055
12logsource:
13    category: network_connection
14    product: windows
15detection:
16    selection:
17        Image|endswith: '\notepad.exe'
18    condition: selection
19falsepositives:
20    - Unknown
21level: low```

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