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active viruses




Features:



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For W95/98/Me/
2000PRO/NT4/XP


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Glossary:


What is a computer virus?


What's a Trojan?


What's an I-worm?


What's a Hoax?


What's a Logic bomb?


What's a Zoo virus?


What's D.O.S?


What's a Boot Virus?


What's a Companion Virus?


What's a Cavity Infector?


What's a Macro Virus?







Logic Bomb
Usually of payloads; code that only runs when particular logical conditions are met while executing the virus or Trojan carrying it. For example, many viruses have payloads that only run on a certain date or between two dates or times, whereas others have payloads that only run after a specific number of files or boot sectors have been infected, and yet others check for any number and manner of other conditions.





Companion Viruses
These viruses duplicate existing executable files and change their ending. Lets say you have a file game.exe, then the companion virus will create another file game.com. The system will launch .com prior to .exe if it finds two executable files with the same name. Another kind of companion virus, will rename the original file then copy the virus in the same path with the same name as original file.





Boot Viruses
These viruses spread thru the boot sectors (floppies, Master Boot Record etc).






Parasitic Viruses
These viruses infect executable files. Whenever the infected file is launched the virus will activate.




Link Viruses
These viruses can be very harmful. They alter the directory structure and redirect the directory entry to the place that contains a virus. Disinfecting these viruses is very dangerous also.





Cavity Infectors
Whenever the regular virus attaches to the program, it can be detected by seeing the increase of file size. Cavity infectors find a hole and record themselves there, so the actual file size won't increase.





Macro Viruses
They are placed inside the macros within the document. They are usually found in the documents of Microsoft Office Applications.






Multipartite Viruses
These are viruses which target several file types.




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Latest News:

November 8th, 2002
There is a growing epidemic of I-Worm.Tanatos, aka Bugbear.

It spreads via Internet as an attached file. It contains Trojan algorithms to control the infected computer. The worm has a size of 50k and is written in Microsoft Visual C++. It has a random subject line and randomly sends either text emails or html-based emails. Tanatos takes advantage of the breach in iframe and infects computer without any action on the part of user, whenever the email is opened.                    More...


November 1st, 2002
Microsoft Corporation is warning the users of their products about a new worm that pretends to be a greeting card.

People who read this greeting are invited to install new software. In the installation agreement it states that the software will have access to the user's address book. On Tuesday, MessageLabs discovered that these "greeting cards" are being sent from Cool-Downloads.com, which according to whois database is registered in Panama City, El Dorado.                       More...



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