Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/6ff35087d789f7aca6c0e3396984894e_B.txt Contact: malvuln13@gmail.com 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 Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).