Trojan.Win32.TScash.c malware suffers from an insecure permissions vulnerability.
c831857f2b0c2d4961751fe6ce1c1177Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/9d18d318e017b513b9c6cd193ccdc6ff.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Trojan.Win32.TScash.c
Vulnerability: Insecure Permissions
Description: The malware writes a PE file with insecure permissions to c drive granting change (C) permissions to the authenticated user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.
Family: TScash
Type: PE32
MD5: 9d18d318e017b513b9c6cd193ccdc6ff
Vuln ID: MVID-2022-0555
Dropped files: tscash.exe
Disclosure: 04/18/2022
Exploit/PoC:
C:\>cacls tscash.exe
C:\tscash.exe BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
C:\>dir tscash.exe
Volume in drive C has no label.
Directory of C:\
02/18/2013 04:48 PM 49,664 tscash.exe
1 File(s) 49,664 bytes
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