A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that flu viruses cannot reproduce without a host cell, computer viruses cannot reproduce and spread without programming such as a file or document.

According to Virus Bulletin’s May, 1999 virus prevalence report, macro viruses accounted for 90% of all reported infections. One such infected document came to me in an invoice from an antivirus company! 3. CIH Virus - 1998. The CIH virus, also known as the "Chernobyl virus", was named after the initials of the author of the worm, Chen Ing Hau. Type of Computer Viruses (Names and Definitions On running the programs, the virus would be activated, then be able to carry out its damaging effects. Most of the existing viruses are in this category. Boot viruses: This virus infects the hard disk’s or floppy drive’s boot sector. This would make the computer unable to boot. First Known Computer Virus. What is the most damaging computer virus you can get Dec 07, 2008 "WannaCry" ransomware attack losses could reach $4 billion

What does a computer virus do? Some computer viruses are programmed to harm your computer by damaging programs, deleting files, or reformatting the hard drive. Others simply replicate themselves or flood a network with traffic, making it impossible to perform any internet activity.

Mar 19, 2012 The Most Costly Computer Viruses Of All Time Apr 29, 2020

Top 10 Most Destructive Computer Virus Ever 2018 | Worst

Top 10 Most Damaging Malware April 2019 Update - Cyber 10 Most Damaging Malware April 2019. These malware are designed to basically steal sensitive data on the target system include banking information. So, let’s check out the list of 10 most damaging malware April 2019. Emotet-banking Trojan: It is a data stealer trojan threat that first appeared in 2014. This modular trojan threat mostly