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Virus infection in Computers can be contacted through different means. Below are the commonest causes of Computer Virus attack. 1. Through the internet: The easiest and quickest means of spreading Computer Virus is through the internet. Basically through downloaded files and documents. When the source of a document is not trusted it should not be downloaded. If at all it will be downloaded it has to be thoroughly scanned for virus with a reliable anti-virus Software. 2. Through Email attachments: When the source of an email attachment is not known and trusted it should not be opened especially the messages of “get rich quickly”.
Some of them are Scam and coded virus.
This kind of offer is usually appealing and used as a bait to trap the unsuspecting public or computer user. 3. Removable Storage Devices: Going by the definition of a Computer Virus, it has the ability to replicate itself through every medium instructed in the coded software. One of the means of doing so is through a removable storage facility such as Floppy Disc, USB Flash drive, Memory cards etc.
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Before accepting any of these devices used on a system they should be scanned for Virus. 4. Through Bluetooth Transfer: Viruses can be contacted through a transfer of documents via a Bluetooth, once one of the Computers is infected with a Virus or the document so transferred.
This called for the installation of a reliable anti- Virus 10 Signs Of A Computer With Virus
1. Your computer is running unusually slow
This could be a sign that you have malware on your computer.
When this gets onto a machine, it can take away system resources and slow it down. 2. Your computer keeps displaying pop up messages
This is another sign that you may have malware or spyware installed on your computer. The pop up messages try to redirect you to other malicious sites or advertise to you. However, more fake antivirus software that wants you to pay money for it to remove any “threats” detected on your computer. 3. Your computer sends you to websites that you didn’t search for If you’re searching for something like shoes and you end up on a website that is anything but shoes (and these can include nasty websites with disgusting images), then this is another sign of a computer virus.
4. Your computer can’t connect to the internet
If you’ve done your usual troubleshooting with your Internet Service Provider, checked all the plugs into and out of the machine AND restarted the computer, then this can be a sign of malware. Certain malware blocks you from accessing the internet and receiving the help you need. 5. Your antivirus software has disappeared from your computer As malware developers become more and more refined, the first thing they try and do is disable your antivirus or internet security software that is running.
6. Your applications won’t open or the computer keeps crashing Certain malware stops you from opening programs on your computer (e.g. Microsoft Word). And having malware installed can also lead to system instability as the malware tries to propagate itself. This can result in your system crashing unexpectedly. 7. Your computer has new programs that you haven’t installed If you haven’t installed the programs, you need to check the validity of them and uninstall them if you feel they are compromising your computer and your security. Situations like this can arise even when downloading what you think are “legitimate” files. We call these “drive by” downloads.
8. Your files are gone
Some of the nastiest malware around has had the ability to delete files. Fortunately, this type of malware isn’t around anymore, but it is something to be aware of.
9. Your computer is speaking in a strange language
This is fairly rare nowadays, but occasionally you can see programs that have foreign languages that are installed on your computer. Malware comes from all over the world and it’s good to keep an eye out for this.
10. Your computer has gone CRAZY!
We all know that feeling don’t we? You can see your mouse moving by itself, things have changed colours, or even worse, there are screens that you don’t recognise. These are all sure signs your computer has been infected and indicate that a Trojan or worm is guilty of the damage. - See more at: http://resources.avg.com.au/security_risks/top-10-signs-you-have-a-computer-virus/#sthash.58IITlLf.dpuf
Sources Of Computer Virus. (2016, Aug 24). Retrieved from https://studymoose.com/sources-of-computer-virus-essay
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