Backdoor.Win32.Netbus.12 Information Disclosure

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/d9822984ed546cbf3ccffd149d1d2af5.txt  
Contact: [email protected]  
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  
  
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