A computer virus is a type of malicious software, it can take on many forms. from a fake antivirus software to a trojan.

There are 3 critical stages to a virus

The infection

The payload

The execution phase

The infection stage starts when the user getting the virus installs the virus on the target's computer

The payload activates when the infection mechanism executes the virus

The execution starts when the payload is released.
Guy 1: *installs a virus*

Antivirus: You have a virus.

Guy 1: removes the virus

Guy 1: learns to never install computer viruses from phishy websites
by pejafme February 3, 2019
Get the Computer virus mug.
A common type of malicious software (malware) that, when executed, replicates itself by inserting copies (possibly modified) into other computer programs, data files or the hard drive's boot sector; if this replication succeeds, the affected areas by it are often said to be "infected". Viruses often perform some types of harmful activities on infected hosts, such as stealing hard drive's space or the CPU time, accessing private/sensitive information, displaying political or humorous messages on the user's screen, spamming their contacts, or logging user's keystrokes. However, not all viruses carry destructive payloads or attempts to hide.

A good majority of them target computers running Windows.

Computer viruses currently cause billions of dollars worth of economic damage. In response, when it was during the 90's decade, it led to the emergence of the billion-dollar antivirus industry, selling anti-malware protection to users.
The Melissa macro virus is the most famous computer virus that appeared on spring of 1999. Other well-known viruses also appeared as well.
by Ryan900USAYT August 29, 2022
Get the Computer virus mug.
1.) Any program on your computer that reproduces its code
2.) Any program on your computer that completely fucks it up and disables its ability to work properly
3.) A said program that you probably got when you opened an e-mail you didn't know who it was from or downloaded something that you didn't know what it was
4.) Windows
Person 1: My computer keeps crashing, I think it has a virus.
Person 2: Did you open any emails you recieved from a stranger?
1: No.
2: Did you download any strange files?
1: No.
2: Are you running Windows?
1: Yes.
by Definition DemonX October 10, 2004
Get the Computer Virus mug.
If someone speaks like a robot, they're a homeless computer virus.
If they move like an animatronic, they are also a homeless computer virus.
- beep boop skadoo bep geek

by SlibbyDiddy February 24, 2021
Get the homeless computer virus mug.
today is the one day a year that it’s absolutely needed for you to get a computer virus on your computer
November 19 is National Computer virus day! it’s my favorite day because I get an excuse to put horrible virus on my computer and I can’t get in trouble with my mom!
by Lemveon November 19, 2021
Get the National computer virus day mug.
This is what you hear before the Indian scammer starts to fix your computer but actually steals $11,000 from you.
John: "Hello, is this Microsoft tech support?"
Scammer: "Hello, your computer has virus."
by I just work here March 31, 2021
Get the Your computer has virus mug.
A type of person that tries to convince you that you have a virus and scammer makes it look like you "overpaid" for his "services" tries to guilt trip you to sending them tens of thousands of dollars

Yes, hi dave, my name is bob.

by OG Freakus April 12, 2021
Get the Your Computer has virus mug.