Title:
Uncommon Extension In Keyboard Layout IME File Registry Value
Status:
test
Description:Detects usage of Windows Input Method Editor (IME) keyboard layout feature, which allows an attacker to load a DLL into the process after sending the WM_INPUTLANGCHANGEREQUEST message.
Before doing this, the client needs to register the DLL in a special registry key that is assumed to implement this keyboard layout. This registry key should store a value named "Ime File" with a DLL path.
IMEs are essential for languages that have more characters than can be represented on a standard keyboard, such as Chinese, Japanese, and Korean.
References:
-https://www.linkedin.com/pulse/guntior-story-advanced-bootkit-doesnt-rely-windows-disk-baranov-wue8e/
Author: X__Junior (Nextron Systems)
Date: 2023-11-21
modified:None
Tags:
- -'attack.defense-impairment'
- -'attack.t1685'
Logsource:
- product: windows
- category: registry_set
Detection:
selection:
TargetObject|contains|all:
-'\Control\Keyboard Layouts\'
-'Ime File'
filter_main_known_extension:
Details|endswith:
'.ime'
condition:
selection and not 1 of filter_main_*
Falsepositives:
-IMEs are essential for languages that have more characters than can be represented on a standard keyboard, such as Chinese, Japanese, and Korean.
Level:
high
