Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/4cf1f1d740d7acea4d3836228980ebcb.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.Optix.03.b Vulnerability: Unauthenticated Remote Command Execution Description: The malware listens on TCP port 333. Third-party attackers who can reach the system can execute commands made available by the malware. Type: PE32 MD5: 4cf1f1d740d7acea4d3836228980ebcb Vuln ID: MVID-2021-0387 Disclosure: 11/04/2021 Exploit/PoC: nc64.exe x.x.x.x 333 GetVicName; GetVicName;paltalk GetSysDir; TheSysDir; ;C:\WINDOWS\system32\ 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).