HEUR.Trojan.Win32.Generic malware suffers from an unquoted service path vulnerability.
cced849b29747d84648dfffa62a14f9dDiscovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/2e4b6c5bd907995f6fd40c5eeab5c6e9.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: HEUR.Trojan.Win32.Generic
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: 2e4b6c5bd907995f6fd40c5eeab5c6e9
Vuln ID: MVID-2021-0355
Dropped files: sysadz
Disclosure: 10/04/2021
Exploit/PoC:
C:\>sc qc "Task Schedule"
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: Task Schedule
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 0 IGNORE
BINARY_PATH_NAME : C:\PRogram Files\sysadz
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : Task Schedule
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
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