1. Dr. Mario’s
VIRUS DETECTION AND
PREVENTION
DLSPS - Graduate School of Business
Prepared by:
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2. Table of Contents
• Introduction
• Computer Virus Types
• Detecting Computer Viruses
• “Catching” a Computer Virus
• Detecting and Eliminating Computer Viruses
• References
3. Introduction
• A computer virus is a computer program that can copy itself and
infect a computer without permission or knowledge of the user.
(www.wikipedia.com). The term comes from the term virus in
biology. Similar to the way a biological virus works, a computer
virus reproduces by making (possibly modified) copies of itself in
the computer's memory, storage, or over a network.
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4. Computer Type Viruses
• a) Computer System / Boot Record Viruses
– Attack parts of your computer used to run programs
• b) Computer File Viruses
– Clings to various programs files`
– Sample files: .COM, .EXE, .DOC
• c) Common Computer Virus Names
– Stoned, Love Bug,
– Check “Data Fellows Computer Virus Information”
– Check McAfee/Norton/TrendMicro website
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5. How Do I Know I Have A Computer
Virus?
• Programs take longer to load than normal
• Hard drive runs out of hard disk space
• Files have strange names you don’t recognize
• Conventional memory isles than it used to be
• Programs run erratically
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6. How Can You “Catch” A Computer
Virus?
• Flash disks
• Internet
• Email
• Networks
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7. How Do I Detect and Eliminate
Computer Viruses?
• Use anti virus software
– McAfee
– Norton
• TrendMicro (online)
• Use firewall
– Kerio
– ZoneAlarm
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8. REFERENCES: References
• 1. ^ Vesselin Bontchev. Macro Virus Identification Problems. FRISK Software International.
• 2. ^ Malware Evolution: MacOS X Vulnerabilities 2005 - 2006. Kaspersky Lab (July 24, 2006).
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• 3. ^ McAfee. McAfee discovers first Linux virus. news article.
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4. ^ Axel Boldt. Bliss, a Linux "virus". news article.
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