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Name : Syssetup.dll
Description : Windows NT System Setup
Author : ''
Created : '2018-05-25'
Commands :
- Command : rundll32.exe syssetup.dll,SetupInfObjectInstallAction DefaultInstall 128 c:\test\shady.inf
Description : Execute the specified (local or remote) .wsh/.sct script with scrobj.dll in the .inf file by calling an information file directive (section name specified).
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UseCase: Run local or remote script(let) code through INF file specification (Note : May pop an error window).
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Category : AWL Bypass
Privileges : User
MitreID : T1085
MItreLink : https://attack.mitre.org/wiki/Technique/T1085
OperatingSystem : Windows
- Command : rundll32 syssetup.dll,SetupInfObjectInstallAction DefaultInstall 128 c:\temp\something.inf
Description : Launch an executable file via the SetupInfObjectInstallAction function and .inf file section directive.
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UseCase : Load an executable payload.
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Category : Execution
Privileges : User
MitreID : T1085
MItreLink : https://attack.mitre.org/wiki/Technique/T1085
OperatingSystem : Windows
Full Path :
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- Path : c:\windows\system32\syssetup.dll
- Path : c:\windows\syswow64\syssetup.dll
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Code Sample :
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- Code : https://raw.githubusercontent.com/huntresslabs/evading-autoruns/master/shady.inf
- Code : https://gist.github.com/enigma0x3/469d82d1b7ecaf84f4fb9e6c392d25ba#file-backdoor-minimalist-sct
- Code : https://gist.github.com/homjxi0e/87b29da0d4f504cb675bb1140a931415
Detection :
- IOC : ''
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Resources :
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- Link : https://twitter.com/pabraeken/status/994392481927258113
- Link : https://twitter.com/harr0ey/status/975350238184697857
- Link : https://twitter.com/bohops/status/975549525938135040
- Link : https://windows10dll.nirsoft.net/syssetup_dll.html
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Acknowledgment :
- Person : Pierre-Alexandre Braeken (Execute)
Handle : '@pabraeken'
- Person : Matt harr0ey (Execute)
Handle : '@harr0ey'
- Person : Jimmy (Scriptlet)
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Handle : '@bohops'
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