JSC Convert Javascript To Executable

calendar Oct 17, 2023 · attack.defense_evasion attack.t1127  ·
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Detects the execution of the LOLBIN jsc.exe used by .NET to compile javascript code to .exe or .dll format

Sigma rule (View on GitHub)

 1title: JSC Convert Javascript To Executable
 2id: 52788a70-f1da-40dd-8fbd-73b5865d6568
 3status: test
 4description: Detects the execution of the LOLBIN jsc.exe used by .NET to compile javascript code to .exe or .dll format
 5references:
 6    - https://lolbas-project.github.io/lolbas/Binaries/Jsc/
 7author: frack113
 8date: 2022/05/02
 9tags:
10    - attack.defense_evasion
11    - attack.t1127
12logsource:
13    product: windows
14    category: process_creation
15detection:
16    selection:
17        Image|endswith: '\jsc.exe'
18        CommandLine|contains: '.js'
19    condition: selection
20falsepositives:
21    - Unknown
22level: medium

References

  • Jsc | LOLBAS

    Execute: WSH This LOLBAS executes scripts in Windows Script Host (WSH) languages, such as VBScript and JScript.


    Read More

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