Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/1d622f8c72b010b8d7213c032db122e4.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Mucc.ivk
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: 1d622f8c72b010b8d7213c032db122e4
Vuln ID: MVID-2021-0412
Disclosure: 12/03/2021


Exploit/PoC:
C:\Program Files (x86)\SQLIOSIMS\SQLIOSIMS.exe

C:\>sc qc "SQLAGENT MSSQL SQLIOSIMS"
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: SQLAGENT MSSQL SQLIOSIMS
        TYPE               : 110  WIN32_OWN_PROCESS (interactive)
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 0   IGNORE
        BINARY_PATH_NAME   : C:\Program Files (x86)\SQLIOSIMS\SQLIOSIMS.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : MSSQLSERVER SQLIOSIMS
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem


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