Softpanorama University Skeptical Antivirus page
A skeptical look at anti-virus protection.
http://www.softpanorama.org/Antivirus/index.shtml

European Institute for Computer Anti-Virus Research (EICAR)
Combines universities, industry, media, technical, security, and legal experts from civil and military government and law enforcement as well as privacy protection organizations whose objectives are to unite non-commercial efforts against writing and proliferation of malicious code like computer viruses or Trojan Horses, and against computer crime and fraud.
http://www.eicar.org/

Personal Home Page - Gordon, Sarah
Various papers on computer viruses, computer security, and ethics.
http://www.badguys.org/

The WildList Organization International
Organization which maintains a list of computer viruses which are still found "in the wild".
http://www.wildlist.org/

Doug Muth's Anti-Virus Help Page
Independent site with FAQs, papers, and other antivirus resources.
http://www.claws-and-paws.com/virus/

How Stuff Works: Computer Virus
Multipart tutorial describes how computer viruses work.
http://www.howstuffworks.com/virus.htm

Virus or Hoax?
Created to provide basic information about viruses. Links to major anti-virus companies, public services, software downloads, and updates.
http://virusall.com/

Computer Virus Myths
The canonical reference for computer virus myths, hoaxes, and urban legends.
http://www.vmyths.com/

Examples of Malicious Computer Programs
Long essay that describes harm done by major computer viruses or worms, and discusses the nonexistent or lenient punishment for the authors or distributors of these malicious programs.
http://www.rbs2.com/cvirus.htm

comp.virus Newsgroup FAQs
FAQs from the comp.virus newsgroup
http://www.faqs.org/faqs/by-newsgroup/comp/comp.virus.html

Personal Home page - Ferrie, Peter
Various research papers on computer viruses
http://pferrie.tripod.com/

Windows Startup Tasks
Massive listing of tasks that may be running on a Windows system at startup, including tasks which may be created by viruses, worms, spyware, and trojans
http://www.pacs-portal.co.uk/startup_index.htm

Personal Home Page - Szor, Peter
Research papers on computer viruses written by Peter Szor. The site covers Windows viruses and worms and the development of polymorphic and metamorphic viruses.
http://www.peterszor.com/

EICAR test file
Provides a standardized test file for signature based virus detection software. This file can be used to verify the correct operation of antivirus software without unnecessary exposure to viruses.
http://www.eicar.org/anti_virus_test_file.htm

Computer Viruses In Unix Networks
Paper which examines in detail the problem of computer viruses as they relate to Unix and Unix-like systems.
http://www.cybersoft.com/whitepapers/papers/print/networks_print.html

Burton Systems Software - Virus Avoidance Advice
Advice for avoiding and recovering from computer virus infections, mostly for users of Microsoft Windows. Includes links to many free tools and other resources.
http://www.burtonsys.com/virus_advice.html

Personal Home Page - Harrold, Robert
Massive collection of antivirus links and news.
http://www.harrold.org/rfhextra/antivirus.html

AskMen.com - How To: Keep Your Computer Virus-Free
Article with basic advice on virus prevention, and a primer on computer virus terminology.
http://www.askmen.com/fashion/how_to_60/66_how_to.html

Lets have fun with EICAR
Article showing how to test the effectiveness of anti-virus heuristics using modifications of the EICAR test file.
http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0307&L=ntbugtraq&F=P&S=&P=1734

Virus Bulletin
News and technical articles on developments on viruses and anti-virus products.
http://www.virusbtn.com/

BusinessWeek Online - Mydoom's Most Damning Dynamic
Points out that Mydoom was so damaging only because so many individual net users were so unprotected despite education efforts that apparently do not have any significant effect on user behavior.
http://businessweek.com/technology/content/jan2004/tc20040128_7597_tc047.htm

McAfee Virus Information
Virus alerts, mailing list, and searchable descriptions of common viruses.
http://us.mcafee.com/virusInfo/default.asp

Computer Associates Virus Information Center
Virus information from makers of eTrust Antivirus (formerly known as InoculateIT).
http://www3.ca.com/securityadvisor/virusinfo/default.aspx

davebauer.net - Avoiding Viruses
Information to help computer users learn how to protect computers from viruses and hackers.
http://www.davebauer.net/avoiding_viruses.asp

Fire Antivirus Kit - Virus Information Library
Provides detailed information on viruses
http://www.fireav.com/virusinfo/library/

F-Secure Virus Information Centre
A searchable database of virus descriptions, from the provider of F-Secure range of anti-virus software.
http://www.f-secure.com/v-descs/

Panda Software Virus Laboratory
Up to date and in-depth descriptions of the most common viruses by Panda Software, makers of Panda Antivirus Platinum.
http://www.pandasoftware.com/virus_info/encyclopedia/

RAV Virus Encyclopedia
Virus Encyclopedia provided by RAV - Reliable AntiVirus.
http://www.ravantivirus.com/pages/virus.php

Solo Antivirus - Virus encyclopedia
Contains details about latest virus alerts and wide spread virus information.
http://www.srnmicro.com/virusinfo/

Sophos Virus Analyses
This Sophos database holds the latest virus names and descriptions.
http://www.sophos.com/virusinfo/analyses/

Trend Virus Encyclopedia
Trend Micro issues regular advisories regarding new viruses, including a guide to avoiding them in the first place. Site covers risk factor of the newest viruses. lists top ten virus and offers a security alert archive.
http://www.trendmicro.com/vinfo/

VirusList.com
Permanently replenishing information about new viruses. Mechanisms of breeding and operation, detailed analysis of algorithms of viruses. Methods to guard against computer viruses.
http://www.viruslist.com

Secunia - Virus Information
Collects virus information from multiple anti-virus vendors, and the collected information is grouped and indexed. When certain conditions are met virus alerts are generated and can be emailed.
http://secunia.com/virus_information/

OpenAntiVirus Project
Project aimed at developing open source antivirus software comparable to current commercial offerings.
http://www.openantivirus.org/

The Art Of Noh
A weblog on computer security, viruses, worms, trojans and other types of malicious software by Costin G. Raiu.
http://www.noh.ro/blog/index.rdf

Computer Associates Virus Encyclopedia
Computer Associates alphabetical virus database. Searchable with clear descriptions of common viruses.
http://www3.ca.com/securityadvisor/virusinfo/browse.aspx

Symantec AntiVirus Research Center
Virus Encyclopedia site maintained by Symantec, makers of the popular Norton AntiVirus product.
http://www.symantec.com/security_response/index.jsp

IBM's Antivirus Research
News and information about virus prevention, the latest in IBM's research, virus alerts, and lists of the latest hoaxes and hype.
http://researchweb.watson.ibm.com/antivirus/

Virus Hoax
Virus Hoax is a website dedicated to providing valuable information about internet and computer security, and a central location for finding out about current threats.
http://www.virushoax.net