full-disclosure - [FD] Backdoor.Win32.Easyserv.11.c / Insecure Transit

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Message-ID: <CAAHK0WTjZ=KJEucRU7hKaQ+HJUGwMPWZqc-qpx1MbLfD9RMyzg@mail.gmail.com>
Date: Thu, 7 Apr 2022 00:05:28 -0400
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Backdoor.Win32.Easyserv.11.c / Insecure Transit

Discovery / credits: Malvuln - malvuln.com (c) 2022
Original source:
https://malvuln.com/advisory/3b5564e88a0b8a41e4fd730891e635cc.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Easyserv.11.c
Vulnerability: Insecure Transit
Description: The malware makes outbound C2 connection to TCP port 5558.
Credentials are sent over the network in plaintext and the payload looks
exactly like that used by XLog malware MD5:2906b5dc5132dd1319827415e837168f.
Family: Easyserv
Type: PE32
MD5: 3b5564e88a0b8a41e4fd730891e635cc
Vuln ID: MVID-2022-0534
Disclosure: 04/06/2022

Exploit/PoC:
192.168.18.125 - - [03/Apr/2022 21:08:09]
"noname|pass123|cmd:about|cmd:quit"

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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