Infdefaultinstall.exe

Executes SCT script using scrobj.dll from a command in entered into a specially prepared INF file.

Use Code execution

InfDefaultInstall.exe {PATH:.inf}

Evidence

Upstream reference

Environment

Local host

Context

admin

Native

Execute

MITRE

T1218

Detection

Sigma: github.com/SigmaHQ/sigma/blob/c04bef2fbbe8beff6c7620d5d7ea6872dbe7acba/rules/windows/process_creation/proc_creation_win_infdefaultinstall_execute_sct_scripts.yml

BlockRule: docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules

Refs

twitter.com/KyleHanslovan/status/911997635455852544

blog.conscioushacker.io/index.php/2017/10/25/evading-microsofts-autoruns/

bohops.com/2018/03/10/leveraging-inf-sct-fetch-execute-techniques-for-bypass-evasion-persistence-part-2/

lolbas-project.github.io/lolbas/Binaries/Infdefaultinstall/