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Date: Thu, 16 Dec 2021 21:51:50 -0500
From: malvuln <>
Subject: [FD] Backdoor.Win32.Mellpon.b / Remote Unauthenticated Information

Discovery / credits: Malvuln - (c) 2021
Original source:

Threat: Backdoor.Win32.Mellpon.b
Vulnerability: Remote Unauthenticated Information Disclosure
Description: The malware listens on TCP port 80 and creates a dir named
"tanaka" with a file named C.html, the HTML file contains a list of all
dirs on the system and their contents. Third-party attackers who can reach
an infected system can view the screen dumps taken periodically as well as
view all directories and files on the system. The screen dumps are in a JPG
file named "~ss.jpg" and can be accessed by URL http://x.x.x.x/~ss.jpg.
Type: PE32
MD5: e499a4c359a8cc46e641f39c0ed548f9
Vuln ID: MVID-2021-0430
Disclosure: 12/16/2021

1) Open a web browser to the infected host and navigate to C.html or

Screenshots of the infected host.

2) All files and directory contents.

2021/10/13 20:24          28131582 C.html

2016/11/21 15:06    DIR          $Recycle.Bin/
2018/03/13 15:36    DIR          Boot/
2016/11/21 11:28    DIR          Documents and Settings/
2021/12/13 20:21    DIR          dump/
2017/12/13 20:41    DIR          PerfLogs/
2021/12/13 20:17    DIR          Program Files/
2021/10/03 20:49    DIR          Program Files (x86)/
2021/10/03 21:12    DIR          ProgramData/
2018/03/13 00:44    DIR          Recovery/
2018/03/13 00:45    DIR          System Volume Information/
2018/03/13 00:45    DIR          Users/
2021/07/07 21:14    DIR          Windows/
2018/03/01 01:53            398082 bootmgr
2017/09/29 08:41                 1 BOOTNXT
2018/03/13 00:40              8192 BOOTSECT.BAK
2021/10/12 21:10         671088640 pagefile.sys
2021/10/12 21:10          16777216 swapfile.sys


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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
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handling or the downloading of ANY Malware mentioned on this website or
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