What Is Trojan Vundo?

This section provides a quick description of trojan and adware Vundo (also known as VirtuMonde and VirtuMundo).

Vundo is a malicious program for Windows system. Here are some short descriptions of Vundo I found on the Internet:

1. From www.spynomore.com/articles/vundo-trojan-specifics-and-removal.php:

Vundo (also known as VirtuMonde and VirtuMundo) is a malicious
software application that combines both adware and trojan 
characteristics.

Vundo is wide spread today and is probably one of the hardest programs
to get rid of. Once installed, Vundo downloads and displays pop-up
advertisements that often promote questionable computer-enhancement 
programs or fake anti-virus or anti-spyware utilities. Lately, Vundo
has been advertising several rogue programs called WinFixer2005, 
WinAntiVirus Pro 2006, WinAntiSpyware and RazeSpyware.

2. From vil.nai.com/vil/content/v_127690.htm:

This is a trojan detection. Unlike viruses, trojans do not 
self-replicate. They are spread manually, often under the premise that
they are beneficial or wanted. The most common installation methods 
involve system or security exploitation, and unsuspecting users 
manually executing unknown programs. Distribution channels include 
email, malicious or hacked web pages, Internet Relay Chat (IRC), 
peer-to-peer networks, etc.

3. From en.wikipedia.org/wiki/Vundo:

The Vundo trojan is a trojan horse that may cause popups advertising
rogue antispyware programs. It infects victims' computers by 
exploiting a vulnerability in Sun Java 1.4 and earlier versions. 
Many of the popups advertise a program called Sysprotect.

But I don't think any of the above descriptions is accurate. Not long ago, I was asked by a friend of mine to look at his Vundo infected computer. I want to share some notes with you that may help you understand Trojan Vundo better.

Table of Contents

 About This Book

 Introduction to Microsoft Windows

 Introduction to Windows Explorer

 Introduction to Internet Explorer

 "Paint" Program and Computer Graphics

 GIMP - GNU Image Manipulation Program

 JPEG Image File Format Quality and Size

 GIF Image File Format and Transparent Background

 "WinZip" - ZIP File Compression Tool

 "WinRAR" - RAR and ZIP File Compression Tool

 FTP Server, Client and Commands

 "FileZilla" - Free FTP Client and Server

 Web Server Log Files and Analysis Tool - "Analog"

 Spyware Adware Detection and Removal

 IE Addon Program Listing and Removal

Vundo (VirtuMonde/VirtuMundo) - vtsts.dll Removal

What Is Trojan Vundo?

 Partial Removal of Trojan Vundo

 Detecting Trojan Vundo with McAfee VirusScan

 McAfee VirusScan and

 Instructions on Full Removal of Trojan Vundo

 Removing xxxxxxxx.dll Files Generated by Vundo

 What Is Vundo Related vtsts.dll?

 Finding and Removing vtsts.dll Manually

 Removing Trojan Vundo with FixVundo.exe from Symantec

 Removing Trojan Vundo with VundoFix.exe from Atribune.org

 Trojan and Malware "Puper" Description and Removal

 VSToolbar (VSAdd-in.dll) - Description and Removal

 Spybot - Spyware Blocker, Detection and Removal

 Setting Up and Using Crossover Cable Network

 Home Network Gateway - DSL Modem/Wireless Router

 Windows Task Manager - The System Performance Tool

 "tasklist" Command Line Tool to List Process Information

 "msconfig" - System Configuration Tool

 Configuring and Managing System Services

 Windows Registry Key and Value Management Tools

 Startup Programs Removal for Better System Performance

 Winsock - Windows Sockets API

 Java on Windows

 Glossary of Terms

 Outdated Tutorials

 References

 PDF Printing Version