Nasreddine Bencherchali
f61c1f4509
update: Arbitrary DLL or Csproj Code Execution Via Dotnet.EXE - Update logic to add additional variation of the extensions update: Arbitrary File Download Via ConfigSecurityPolicy.EXE - Update description update: C# IL Code Compilation Via Ilasm.EXE - Add flags to increase accuracy of the rule instead of it focusing on "any" execution update: COM Object Execution via Xwizard.EXE - Update logic update: JScript Compiler Execution - Update metadata update: ManageEngine Endpoint Central Dctask64.EXE Potential Abuse - Update logic to account for flags and increase accuracy update: Potential Application Whitelisting Bypass via Dnx.EXE - Update description update: Potential Arbitrary Command Execution Via FTP.EXE - Use "windash" modifier and update description update: Potential Arbitrary File Download Via Cmdl32.EXE - Remove unnecessary spaces to account for flags being at the end. update: Renamed ZOHO Dctask64 Execution - Add additional imphash values update: Windows Kernel Debugger Execution - Reduce level to "medium" update: Xwizard.EXE Execution From Non-Default Location - Update description --------- Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
29 lines
969 B
YAML
29 lines
969 B
YAML
title: JScript Compiler Execution
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id: 52788a70-f1da-40dd-8fbd-73b5865d6568
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status: test
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description: |
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Detects the execution of the "jsc.exe" (JScript Compiler).
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Attacker might abuse this in order to compile JScript files on the fly and bypassing application whitelisting.
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references:
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- https://lolbas-project.github.io/lolbas/Binaries/Jsc/
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- https://www.phpied.com/make-your-javascript-a-windows-exe/
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- https://twitter.com/DissectMalware/status/998797808907046913
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author: frack113
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date: 2022/05/02
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modified: 2024/04/24
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tags:
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- attack.defense_evasion
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- attack.t1127
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logsource:
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product: windows
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category: process_creation
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detection:
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selection:
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- Image|endswith: '\jsc.exe'
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- OriginalFileName: 'jsc.exe'
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condition: selection
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falsepositives:
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- Legitimate use to compile JScript by developers.
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# Note: Can be decreased to informational or increased to medium depending on how this utility is used.
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level: low
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