For the Derb圜on presentation, we probably should have: Within ConsciousHacker and bohops’ equally amazing blog, this came up when exploring the InfDefaultInstall.exe technique.Ĭonsidering this headache, I can totally understand why folks would opt for other LOLBins that provide more stealth (see CMSTP.exe, IEadvpack.dll, and MANY others). The next most commonly asked question related to missing digital signature warnings. If anyone sees differently, please hit me up on Twitter so we can put a nail in this coffin… InfDefaultInstall.exe Autoruns Technique ![]() When executed on my janky Windows 10 RS2 VM from a Scheduled Task running as SYSTEM, I get sweet victory with no Driver Signing Enforcement issues. Since Run Key Values are executed as the user at login and administrative users with UAC enabled will only run under medium integrity, this requirement would not have been satisfied. The first possible cause of this failure may have been the InstallHinfSection function within setupapi.dll requiring administrative privileges in order to successfully install a device (the fantastic bug/feature disclosed by Vectra caused Microsoft to refactor all kinds of low-privilege device installation routines). Rundll32.exe setupapi,InstallHinfSection ModelsSection 128 shady.inf In this scenario, both HKLM and HKCU Run Key Values were used to launch the following command with no avail: ![]() Comments from the fantastic ConsciousHacker blog.
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