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Trojan.Win32.Servstar.poa MVID-2021-0397 Unquoted Service Path

Trojan.Win32.Servstar.poa MVID-2021-0397 Unquoted Service Path
Posted Nov 8, 2021
Authored by malvuln | Site malvuln.com

Trojan.Win32.Servstar.poa malware suffers from an unquoted service path vulnerability.

tags | exploit, trojan
systems | windows
SHA-256 | 18eb344f1348a88d4b0c312aef38c9a8cc6f98bde9406db328b44e856264d21d

Trojan.Win32.Servstar.poa MVID-2021-0397 Unquoted Service Path

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/7588da376f496aa678cdfca4e404f38a.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Servstar.poa
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: 7588da376f496aa678cdfca4e404f38a
Vuln ID: MVID-2021-0397
Dropped files: Random named e.g. waqqoo.exe, iigkie.exe
Disclosure: 11/07/2021


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

SERVICE_NAME: MSUpdqtewux
TYPE : 10 WIN32_OWN_PROCESS
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 0 IGNORE
BINARY_PATH_NAME : C:\Program Files\iigkie.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Microsoft Windows Uqdateouq Service
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem


Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
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