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Backdoor.Win32.Hupigon.aspg / Insecure Service Path

CVE Category Price Severity
N/A CWE-276 N/A High
Author Risk Exploitation Type Date
N/A High Remote 2022-09-07
Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2022090014

Below is a copy:

Backdoor.Win32.Hupigon.aspg / Insecure Service Path
Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/121bf601275e2aed0c3a6fe7910f9826.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Hupigon.aspg
Vulnerability: Insecure Service Path
Description: The malware creates a service with an unquoted path. Attackers who can place an arbitrary executable named "Program.exe" under c:\ drive can potentially undermine the malware by having it run theirs instead with LocalSystem privs.
Family: Hupigon
Type: PE32
MD5: 121bf601275e2aed0c3a6fe7910f9826
Vuln ID: MVID-2022-0634
Disclosure: 09/06/2022

Exploit/PoC:
C:\dump>sc qc VServer_2007
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: VServer_2007
        TYPE               : 110  WIN32_OWN_PROCESS (interactive)
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 0   IGNORE
        BINARY_PATH_NAME   : C:\Program Files\Common Files\Microsoft Shared\MSInfo\R_Server.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : V_Server
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem


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