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  2. Malware - Wikipedia

    en.wikipedia.org/wiki/Malware

    Antivirus software typically uses two techniques to detect malware: (i) static analysis and (ii) dynamic/heuristic analysis. [60] Static analysis involves studying the software code of a potentially malicious program and producing a signature of that program. This information is then used to compare scanned files by an antivirus program.

  3. Computer virus - Wikipedia

    en.wikipedia.org/wiki/Computer_virus

    A computer virus[ 1] is a type of malware that, when executed, replicates itself by modifying other computer programs and inserting its own code into those programs. [ 2][ 3] If this replication succeeds, the affected areas are then said to be "infected" with a computer virus, a metaphor derived from biological viruses.

  4. Antivirus software - Wikipedia

    en.wikipedia.org/wiki/Antivirus_software

    Antivirus software (abbreviated to AV software ), also known as anti-malware, is a computer program used to prevent, detect, and remove malware . Antivirus software was originally developed to detect and remove computer viruses, hence the name. However, with the proliferation of other malware, antivirus software started to protect against other ...

  5. Computer security - Wikipedia

    en.wikipedia.org/wiki/Computer_security

    Malicious software is any software code or computer program "intentionally written to harm a computer system or its users." [ 21 ] Once present on a computer, it can leak sensitive details such as personal information, business information and passwords, can give control of the system to the attacker, and can corrupt or delete data permanently ...

  6. Malicious Software Removal Tool - Wikipedia

    en.wikipedia.org/wiki/Malicious_Software_Removal...

    Malicious Software Removal Tool. Microsoft Windows Malicious Software Removal Tool ( MSRT) is a freeware second-opinion malware scanner that Microsoft 's Windows Update downloads and runs on Windows computers each month, independent of the install antivirus software. First released on January 13, 2005, [ 2] MSRT does not offer real-time protection.

  7. Trojan horse (computing) - Wikipedia

    en.wikipedia.org/wiki/Trojan_horse_(computing)

    v. t. e. In computing, a Trojan horse (or simply Trojan) is any malware that misleads users of its true intent by disguising itself as a standard program. The term is derived from the ancient Greek story of the deceptive Trojan Horse that led to the fall of the city of Troy. [ 1]

  8. Computer worm - Wikipedia

    en.wikipedia.org/wiki/Computer_worm

    Spread of Conficker worm. A computer worm is a standalone malware computer program that replicates itself in order to spread to other computers. [ 1] It often uses a computer network to spread itself, relying on security failures on the target computer to access it. It will use this machine as a host to scan and infect other computers.

  9. Internet security - Wikipedia

    en.wikipedia.org/wiki/Internet_security

    Malicious software comes in many forms, such as viruses, Trojan horses, spyware, and worms. Malware, a portmanteau of malicious software, is any software used to disrupt computer operation, gather sensitive information, or gain access to private computer systems. Malware is defined by its malicious intent, acting against the requirements of the ...

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