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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 : Execute
Privileges : User
MitreID : T1085
MitreLink : https://attack.mitre.org/wiki/Technique/T1085
OperatingSystem : Windows
Full_Path :
- Path : c:\windows\system32\syssetup.dll
- Path : c:\windows\syswow64\syssetup.dll
Code_Sample :
- 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 :
Resources :
- 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
Acknowledgement :
- Person : Pierre-Alexandre Braeken (Execute)
Handle : '@pabraeken'
- Person : Matt harr0ey (Execute)
Handle : '@harr0ey'
- Person : Jimmy (Scriptlet)
Handle : '@bohops'
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