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Backdoor.Win32.Netbus.12 MVID-2021-0230 Information Disclosure

Backdoor.Win32.Netbus.12 MVID-2021-0230 Information Disclosure
Posted May 31, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Netbus.12 malware suffers from an information leakage vulnerability.

tags | exploit
systems | windows
SHA-256 | 48d2d233dd3c0522e78191a1e92f861eadcd7f6a67bf56cb2e72f6192867f7fc

Backdoor.Win32.Netbus.12 MVID-2021-0230 Information Disclosure

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Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/d9822984ed546cbf3ccffd149d1d2af5.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Netbus.12
Vulnerability: Unauthenticated Information Disclosure
Description: The malware listens on TCP ports 12345, 12346. Unauthenticated third-party attackers who can reach infected system can grab screen captures by simply connecting to port 12346. Once connected it will dump a screen capture, using Windows command line redirection operator ">" we can save the output locally. Opening the dumped output in text-file format we find the header "JFIF" for JPEG file format. Therefore, using the .jpeg file extension when saving the output will allow you to view the victims machine by opening the image.
Type: PE32
MD5: d9822984ed546cbf3ccffd149d1d2af5
Vuln ID: MVID-2021-0230
Dropped files:
Disclosure: 05/28/2021

Exploit/PoC:
nc64.exe x.x.x.x 12346 > screendump.jpeg

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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