Wednesday 22 April 2015

Viruses,Trojans and Worms

Virus- this is a malicious program is a executable program that can reproduce itself it does need you to click anything but it needs you  to execute it. Just running these files can make it spread throughout the system.


Worms- Computer worms are malicious software applications designed to spread via computer networks. Computer worms are one form of malware along with viruses and Trojans. A person typically installs worms by inadvertently opening an email attachment or message that contains executable.one installed on a computer the worm spontaneously generate additional email messages containing copies of the worm. They may also open TCP ports to create network security loop holes for other applications and they attempt to flood the LAN with spurious Denial of Service.





Trojans-A Trojan is a self-contained, malicious program  that is, it's a bit of software code that does something bad to your computer. It doesn't replicate  the same as a worm would, and does not infect other files like a Virus. However  Trojans are often grouped together with viruses and worms, because they can have the same kind of harmful effect.

Here is a list of the worst viruses out their

Boot sector- this is applied to the boot information used by any operating system.
Browser Hijacker- this type of virus can spread itself in numerous ways including voluntary download effectively hijacks certain browsers usually in the form of directing the user to particular sites.
File Infector Virus- this is the most common of the viruses the file infector takes root in the host file and then begins its operation when the file is executed.
Macro virus- these are usually associated with my applications like Excel or any other application that supports the use of a Macro. they use special actions that programmed into the document. the most well know macro virus was called Melissa this was a word document that contained password to pornographic websites.
Resident Virus- This virus definition applies to any virus that inserts itself into the memory and therefore only takes action when the infected file is executed.

Virus update of new viruses 2015 3/06/15
hers is a list of viruses to look out for
 ios oneclickfraud-Trojan
Linux mouse- Trojan/worm
Backdoor   Waketagat - Trojan
 Sonar SuspBeh!Gen 580- Trojan/Worm/virus                                                                                        




















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