Terms You Should Know

                History Of Virus Attacks



A program that usually spreads over network connections. Unlike a virus, it does not attach itself to a host program. Worms are not normally associated with personal computer systems.
















Brain Virus: This was the  first PC virus. It was written in Pakistan and infected the boot records of floppy disks by occupying any unused space so that the disk could no longer be used.

Lehigh Virus: Found at Lehigh University. It infects executable files when  opened and then stays in the resident memory.
Jerusalem Virus: Found at Hebrew University. It was also a memory resident file infector that could also re-infect already infected programs.

Cascade Virus: Found in Germany, it was the first encrypted virus.

Dark Avenger Virus: the first virus designed to damage a system slowly so as to be unnoticed.
Frodo Virus
: Found in October in Israel, it was the first full-stealth file infector, designed to damage hard drives.

Tequila Virus: A virus that is Polymorphic (encrypted so that the decryption routine code is variable) and Multipartite (can infect both programs and boot sectors).

Michaelangelo Virus: Found in march, there were few cases of this virus.

Satanbug Virus: Appeared in the Washington DC area. The culprit was a kid! Cruncher Virus: A rare "good" virus that compressed infected files and gave the user more space.

Kaos4 Virus: Downloaded from porn sites.
Pathogen Virus found.

Concept Virus: A macro-virus, it was the most common virus worldwide.
Boza Virus: although weak, is was the first virus designed for Windows 95.
Laroux Virus: The first virus to successfully infect Microsoft Excel spreadsheets.

Melissa Virus: A macro virus which uses Microsoft Word to infect computers and is passed on to others through Microsoft Outlook and Outlook Express e-mail programs.

I Love You Virus: A worldwide disaster that is transmitted through e-mail and when opened, automatically is sent to everyone in the user's address book.

Nimda Virus: Infected thousands of computers worldwide shortly after the September 11 attacks. The virus was one of the most sophisticated, with as many as 5 ways of  replicating and infecting systems. Anna Kournikova Virus:  It e-mails itself to persons listed in the victim's Microsoft Outlook address book and was believed to have been written with a "tool kit"

LFM-926 Virus: It displayed the message “Loading.Flash.Movie” as it infects Shockwave Flash (.swf) files. Celebrity named viruses continue with the “Shakira,” “Britney Spears,” and “Jennifer Lopez” viruses

Slammer Virus: Became the fastest spreading worm, infecting 75,000 computers in about 10 minutes.
The Sobig Virus: The first to join the spam community, using spamming techniques to mass-mail copies of itself.
MyDoom Virus (Norvarg): It spread through e-mails and file-sharing software faster than any previous virus or worm and allows hackers to access the hard drive of the infected computer when recipients open an attachment.
Sasser Virus: An estimated one million computers running Windows are affected by the fast-spreading virus. It is unlike other viruses in that it sabotages computers without the user having to open a file attachment

Social Engineering

The act of obtaining otherwise secure data by conning an individual into revealing secure information.


Short for electronic mail, transmitting messages over communications networks.


A file that accompanies an e-mail message

Anti-virus software

Software tools that detect, block and/or remove viruses from files, emails, or network communications.


An untrue, invalid, or outdated email message written to convince the recipient to send the message to others.


This is a term used to describe the activity initiated by a virus. Typical virus payloads include displaying a message or deleting files.


An error or defect in software or hardware that causes a program to malfunction

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