Detectionmediumtest

Ie4uinit Lolbin Use From Invalid Path

Detect use of ie4uinit.exe to execute commands from a specially prepared ie4uinit.inf file from a directory other than the usual directories

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François HubautCreated Sat May 07Updated Mon May 16d3bf399f-b0cf-4250-8bb4-dfc192ab81dcwindows

Log Source

WindowsProcess Creation

ProductWindows← raw: windows

CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic

detection:
    lolbin:
        - Image|endswith: '\ie4uinit.exe'
        - OriginalFileName: 'IE4UINIT.EXE'
    filter_correct:
        CurrentDirectory:
            - 'c:\windows\system32\'
            - 'c:\windows\sysWOW64\'
    filter_missing:
        CurrentDirectory: null
    condition: lolbin and not 1 of filter_*