mirror of
https://github.com/LOLBAS-Project/LOLBAS
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37 lines
1.5 KiB
YAML
37 lines
1.5 KiB
YAML
---
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Name: Jsc.exe
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Description: Binary file used by .NET to compile javascript code to .exe or .dll format
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Author: 'Oddvar Moe'
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Created: 2019-05-31
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Commands:
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- Command: jsc.exe scriptfile.js
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Description: Use jsc.exe to compile javascript code stored in scriptfile.js and output scriptfile.exe.
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Usecase: Compile attacker code on system. Bypass defensive counter measures.
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Category: Compile
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Privileges: User
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MitreID: T1127
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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- Command: jsc.exe /t:library Library.js
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Description: Use jsc.exe to compile javascript code stored in Library.js and output Library.dll.
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Usecase: Compile attacker code on system. Bypass defensive counter measures.
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Category: Compile
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Privileges: User
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MitreID: T1127
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OperatingSystem: Windows vista, Windows 7, Windows 8, Windows 8.1, Windows 10
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Full_Path:
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- Path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\Jsc.exe
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- Path: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Jsc.exe
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- Path: C:\Windows\Microsoft.NET\Framework\v2.0.50727\Jsc.exe
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- Path: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Jsc.exe
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Code_Sample:
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- Code:
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Detection:
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- IOC: Jsc.exe should normally not run a system unless it is used for development.
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Resources:
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- Link: https://twitter.com/DissectMalware/status/998797808907046913
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- Link: https://www.phpied.com/make-your-javascript-a-windows-exe/
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Acknowledgement:
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- Person: Malwrologist
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Handle: '@DissectMalware'
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---
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