What is a virus comp sci?
A computer virus is malicious code that replicates by copying itself to another program, computer boot sector or document and changes how a computer works. A virus spreads between systems after some type of human intervention.
What is a computer worm example?
Computer worm examples Morris Worm: Also known as the Internet worm, this was one of the first computer worms to spread via the Internet and earn notoriety in the media. Bagle: Also known as Beagle, Mitglieder, and Lodeight, this mass-mailing worm had many variants.
Which is the first PC virus?
The Brain Boot Sector Virus
The Brain Boot Sector Virus Brain, the first PC virus, began infecting 5.2″ floppy disks in 1986. As Securelist reports, it was the work of two brothers, Basit and Amjad Farooq Alvi, who ran a computer store in Pakistan.
What is the name of PC virus?
Conficker, Downup, Downadup, Kido – these are all computer virus names that appeared on the internet in 2008. It used the MS08-067 Windows system vulnerability and advanced malware techniques to propagate and install itself into the system.
What are the 5 types of computer worms?
There are several types of malicious computer worms:
- Email worms. Email worms work by creating and sending outbound messages to all the addresses in a user’s contact list.
- File-sharing worms. File-sharing worms are programs that are disguised as media files.
- Cryptoworms.
- Internet worms.
- Instant messaging worms.
What is the purpose of a rootkit?
The main purpose of rootkits is to mask malware payloads effectively and preserve their privileged existence on the system. For that reason, a rootkit will conceal files, malware processes, injected modules, registry keys, user accounts or even system registries running on system boot.
What are rootkits and examples?
Examples of rootkit attacks
- Phishing and social engineering attacks. Rootkits can enter computers when users open spam emails and inadvertently download malicious software.
- Application rootkit attacks.
- Network and internet of things (IoT) attacks.
- OS attacks.
- Credit card swipe and scan attacks.