Hemis tasks tasks 4: score -5 unit 8: security and safety lesson 21. Computer threats. It security and safety. Task 1


Features of an Effective Antivirus



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Qahhorov Temurbek 630 -21

Features of an Effective Antivirus
The following features of any antivirus are to be looked for when you decide on installing one Proactive scanning for malwares, and deleting once detected

  • Default-Deny Protection – Default-Deny protection that is implemented to prevent the entry of suspicious files by default.

  • Auto Sandbox Technology – A virtual environment where suspicious and unknown files are secluded and run to check for any malicious activity without interfering with the normal operations.

  • Containment Technology – Validates and authorizes the programs that are executable and ensures that the processes are run without effecting the regular operations of the system.

  • Host Intrusion Protection System (HIPS) – This feature works on a protocol-based intrusion prevention system, that oversees all the application and program activities that aare processed in the system. The HIPS terminates any malicious activities once found. This prevents the malware from infecting the operating system, registry keys or personal data or system memory.

Antiviruses are also of different types based on the OS compatibility

  • Antivirus for Linux OS

  • Antivirus for Android OS

  • Antivirus for MAC OS



Task 1. Note the purposes, functions and types of:

1 – VIRUSES Some viruses are programmed specifically to damage the data on your computer by corrupting programs, deleting files, or erasing your entire hard disk. Many of the currently known Macintosh viruses are not designed to do any damage. However, because of bugs (programming errors) within the virus, an infected system may behave erratically.


Computer viruses don't infect files on write-protected disks and don't infect documents, except in the case of Word macro viruses, which infect only documents and templates written in Word 6.0 or higher. They don't infect compressed files either. However, applications within a compressed file could have been infected before they were compressed. Viruses also don't infect computer hardware, such as monitors or computer chips; they only infect software.


Nowadays number of viruses is about 55000. It increases constantly. New unknown types of viruses appear. To classify them becomes more and more difficult. In common they can be divided by three basic signs: a place of situating, used operation system and work algorithms. For example according these three classifications virus Chernobyl can be classified as file infector and resident Windows virus. Further it will be explained what it means.


2 – ANTIVIRUSES:

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