Backdoor.Win32.Hupigon.acio malware suffers from an unquoted service path vulnerability.
e6adc2a82544b7f24f2b3ccf022fa695Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/21f324a6a62d8125bc83b8d1865e17f9.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.Hupigon.acio
Vulnerability: Insecure Service Path
Description: The malware creates a service with an unquoted path. Third party attackers who can place an arbitrary executable under c:\ drive can potentially undermine the integrity of the malware by having it run theirs instead with SYSTEM privs.
Type: PE32
MD5: 21f324a6a62d8125bc83b8d1865e17f9
Vuln ID: MVID-2021-0372
Dropped files: IEload.exe
Disclosure: 10/27/2021
Exploit/PoC:
C:\>sc qc "Win32Help"
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: Win32Help
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 0 IGNORE
BINARY_PATH_NAME : C:\Program Files (x86)\Internet Explorer\Connection Wizard\IEload.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Windows Help Client
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
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