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Update description & references
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@ -2,6 +2,7 @@ title: Suspicious Rundll32 Setupapi.dll Activity
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id: 285b85b1-a555-4095-8652-a8a4106af63f
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description: setupapi.dll library provide InstallHinfSection function for processing INF files. INF file may contain instructions allowing to create values in the registry, modify files and install drivers.
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This technique could be used to obtain persistence via modifying one of Run or RunOnce registry keys, run process or use other DLLs chain calls (see references)
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InstallHinfSection function in setupapi.dll calls runonce.exe executable regardless of actual content of INF file.
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status: experimental
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author: Konstantin Grishchenko, oscd.community
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date: 2020/10/07
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@ -9,6 +10,7 @@ references:
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- https://github.com/LOLBAS-Project/LOLBAS/blob/master/yml/OSLibraries/Setupapi.yml
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- https://gist.githubusercontent.com/bohops/0cc6586f205f3691e04a1ebf1806aabd/raw/baf7b29891bb91e76198e30889fbf7d6642e8974/calc_exe.inf
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- https://raw.githubusercontent.com/huntresslabs/evading-autoruns/master/shady.inf
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- https://twitter.com/Z3Jpa29z/status/1313742350292746241?s=20
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tags:
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- attack.defense_evasion
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- attack.t1218.011
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@ -28,5 +30,5 @@ fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- Scripts and administrative tools that use INF files for driver installation with setupapi.dll
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- Scripts and administrative tools that use INF files for driver installation with setupapi.dll
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level: medium
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