Archives - Antivirus Definition

What is a Zero-Day Attack?

A zero-day (also known as 0-day) vulnerability is a computer-software vulnerability that is unknown to those who would be interested in mitigating the vulnerability (including the vendor of the target software). Until the vulnerability is alleviated, hackers can exploit it to negatively affect computer programs, data, additional computers or a network. An exploit directed at […]

Types of Malware: What is a Computer Virus?

A computer virus is a type of malicious software that, when executed, replicates itself by modifying other computer programs and inserting its own code. When this replication succeeds, the affected areas are then said to be “infected” with a computer virus. Computer viruses currently cause billions of dollars’ worth of economic damage each year, due […]

Types of Malware: What are Botnets?

Networks of computers infected by malware and controlled remotely by cybercriminals, usually for financial gain or to launch attacks on websites or networks. Many botnets are designed to harvest data, such as passwords, Social Security numbers, credit card numbers, and other personal information.

What is cryptomining?

Cryptocurrency mining, or cryptomining, is simply the way in which cryptocurrency is earned. Individuals mine cryptocurrency by using cryptomining software to solve complex mathematical problems involved in validating transactions. Each solved equation verifies a transaction and earns a reward paid out in the cryptocurrency. Solving cryptographic calculations to mine cryptocurrency requires a massive amount of […]

Types of Malware: What’s a Worm?

A type of malware that replicates itself over and over within a computer. Most cybercrime starts with malware. Cybercriminals use it to access your computer or mobile device to steal your personal information like your Social Security number, passwords, credit card information, or bank account information, to commit fraud. Once cybercriminals have your personal information, […]

Types of Malware: What is a Trojan?

A type of malware that disguises itself as a normal file to trick a user into downloading it in order to gain unauthorized access to a computer.