Trojan.Win32.Agent.xdtv Insecure Permissions

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/ffa9b76f9549a2c46415c855a0911e8a.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Trojan.Win32.Agent.xdtv  
Vulnerability: Insecure Permissions  
Description: The malware creates an insecure installation dir under "C:\Program Files (x86)" and grants full (F) permissions to the Everyone user group. Standard users can rename the executables 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.  
Type: PE32  
MD5: ffa9b76f9549a2c46415c855a0911e8a  
Vuln ID: MVID-2021-0198  
Disclosure: 05/04/2021  
  
Exploit/PoC:  
C:\>cacls "C:\Program Files (x86)\Cannonnt"  
C:\Program Files (x86)\Cannonnt Everyone:(OI)(CI)F  
  
C:\>cd "\Program Files (x86)\Cannonnt"  
  
C:\Program Files (x86)\Cannonnt>dir  
Volume in drive C has no label.  
  
Directory of C:\Program Files (x86)\Cannonnt  
  
05/10/2012 05:04 PM 53,248 messenger.exe  
05/10/2012 05:04 PM 122,880 rdbms.exe  
05/10/2012 05:04 PM 196,608 RDS.exe  
05/10/2012 05:04 PM 233,472 windns.exe  
4 File(s) 606,208 bytes  
  
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