Script Initiated Connection

Detects a script interpreter wscript/cscript opening a network connection. Adversaries may use script to download malicious payloads.

Sigma rule (View on GitHub)

 1title: Script Initiated Connection
 2id: 08249dc0-a28d-4555-8ba5-9255a198e08c
 3status: test
 4description: Detects a script interpreter wscript/cscript opening a network connection. Adversaries may use script to download malicious payloads.
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/28d190330fe44de6ff4767fc400cc10fa7cd6540/atomics/T1105/T1105.md
 7author: frack113
 8date: 2022/08/28
 9tags:
10    - attack.command_and_control
11    - attack.t1105
12logsource:
13    category: network_connection
14    product: windows
15detection:
16    selection:
17        Initiated: 'true'
18        Image|endswith:
19            - '\wscript.exe'
20            - '\cscript.exe'
21    condition: selection
22falsepositives:
23    - Legitimate scripts
24level: medium

References

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