Trojan-Spy.Win32.Pophot.bsl MVID-2022-0635 Insecure Permissions

`Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022  
Original source: https://malvuln.com/advisory/8c0e6ec6b8ac9eb1169e63df71f24456.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Trojan-Spy.Win32.Pophot.bsl  
Vulnerability: Insecure Permissions  
Description: The malware writes a BATCH file ".bat" to c drive granting change (C) permissions to the authenticated user group. Standard users can rename the file 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: Pophot  
Type: PE32  
MD5: 8c0e6ec6b8ac9eb1169e63df71f24456  
Vuln ID: MVID-2022-0635  
Disclosure: 09/06/2022   
  
Exploit/PoC:  
C:\>type zhqbdf.bat  
  
"C:\WINDOWS\system\zhqbs080722.exe" i  
del %0  
  
C:\>cacls zhqbdf.bat  
C:\zhqbdf.bat BUILTIN\Administrators:(ID)F  
NT AUTHORITY\SYSTEM:(ID)F  
BUILTIN\Users:(ID)R  
NT AUTHORITY\Authenticated Users:(ID)C  
  
  
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