Sigma rule: Ie4uinit Lolbin Use From Invalid Path

Rule

Title

Ie4uinit Lolbin Use From Invalid Path

Status

test

Level

medium

Author

frack113

Date

2022-05-07

Modified

2022-05-16

File

rules/windows/process_creation/proc_creation_win_lolbin_ie4uinit.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

product

windows

category

process_creation

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_*

False positives (as the rule lists them)

• ViberPC updater calls this binary with the following commandline "ie4uinit.exe -ClearIconCache"

Tags

• attack.stealth
• attack.t1218

MITRE ATT&CK ids this rule names

• T1218

References

• https://lolbas-project.github.io/lolbas/Binaries/Ie4uinit/
• https://bohops.com/2018/03/10/leveraging-inf-sct-fetch-execute-techniques-for-bypass-evasion-persistence-part-2/

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_lolbin_ie4uinit.yml