Discovery / credits: Malvuln - (c) 2022  
Original source:  
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  
C:\>cacls tscash.exe  
C:\tscash.exe BUILTIN\Administrators:(ID)F  
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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