Virus Encyclopedia

Malware Environment Where do viruses live? What does a worm need to flourish? A concise description of software requirements for malware. More		Malware Descriptions Definitions of malware categories and descriptions of individual viruses, Trojans, worms and other malicious programs. More
Who Creates Malware Viruses and other malware do not come from nowhere: an explanation of who writes malicious programs and why. More		History of Malware Computer viruses have been around for a long time now. A detailed look at the roots of malware from the mid 20th century to the present. More
Malware Trends Where are we headed? An in-depth look at recent events helps forecast future trends and security issues. More		If Your Computer is Infected An infected computer is like a person - if you analyse the symptoms, you can diagnose the illness. More

Latest Malware Descriptions

Apr 15 2009 Trojan-Dropper.Win32.Agent.albv This Trojan has a malicious payload. It is a Windows PE EXE file. It is 23552 bytes in size. Installation The Trojan copies its executable file as follows: %WinDir%\system\svhost.exe In order to ensure that the Trojan is launched automatically when the system is rebooted, the Trojan adds a link... Apr 15 2009 Backdoor.Win32.Agent.abgg This Trojan provides a remote malicious user with access to the victim machine. It is a Windows PE EXE file. It is 22528 bytes in size. Installation Once launched, the Trojan copies its body to the Windows system directory as "digeste.dll": %System%\digeste.dll In order to ensure that the Trojan... Apr 15 2009 Trojan-Dropper.Win32.Kido.a This Trojan is designed to install and launch other programs on the victim machine without the knowledge or consent of the user. It is a Windows PE EXE file. It is 78848 bytes in size. It is written in C++. Mar 18 2009 Trojan-Downloader.Win32.Kido.a This malicious program is a Windows DLL file. Installation The malware copies its executable file with random names to the following directories: %Program Files%\Internet Explorer\<rnd>.dll %Program Files%\Windows Media Player\<rnd>.dll %Program Files%\WindowsNT\<rnd>.dll %Program... Mar 12 2009 Email-Worm.Win32.Merond.a This worm spreads as an attachment to infected emails and also via file-sharing networks and removable media. The worm itself is a Windows PE EXE file. The worm’s executable file can vary between 150KB to 400KB in size. Installation The worm copies its executable file to the Windows system... Mar 12 2009 Trojan.Win32.Agent.azsy This malicious program is a Trojan. It is a Windows PE EXE file. It is 417792 bytes in size. It is packed using UPX. The unpacked file is approximately 439KB in size. It is written in C++. Installation Once launched, the Trojan copies its body to the current user’s Windows startup... Mar 12 2009 Trojan.Win32.Agent2.dtb This Trojan calls premium rate numbers without the knowledge or consent of the user. It is a Windows PE EXE file. It is 25131 bytes in size. It is written in Delphi. Feb 24 2009 Trojan-Downloader.Win32.Small.ydh This Trojan downloads other files via the Internet and launches them for execution on the victim machine without the user’s knowledge or consent. It is a Windows PE EXE file. It is 34816 bytes in size. It is not packed in any way. It is written in C++. Installation Once launched, the Trojan... Feb 24 2009 Trojan-Downloader.Win32.Agent.ahoe This Trojan downloads another malicious program via the Internet and launches it on the victim machine without the user’s knowledge or consent. It is a Windows PE EXE file. It is 9216 bytes in size. It is packed using UPX. The unpacked file is approximately 38KB in size. It is written in... Feb 20 2009 Trojan-Downloader.JS.Agent.crh This Trojan downloads other files via the Internet and launches them for execution on the victim machine. The program is an HTML page which contains Java Script scenarios. It is 1070 bytes in size.