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Saturday, January 15, 2011

Computer 101: Keeping your Computer Safe from Viruses and Other Threats P-2.

On my previous post, I emphasized on the self practice of safe browsing. Meaning do not just surf anywhere but be objected, think first of what you really need to do to get before surfing the internet that way you'll be able to get the information the you want at much faster time and less hazardous to your computer. Another thing about practicing self safe browsing technique is do not just click on the link or any link, there are a lot of link out there that once click will open the box of bad news for your computer. Also email, your email is one another source of those potentially harmful threats. The safe practice for avoiding virus from email is that avoid opening email that you do not know. Meaning if an email has been sent to you and the sender is a total stranger to you. DO NOT Open or click it, for once you click it then if it contains viruses those viruses will be let loose in your computer even if you have a anti-virus. Is that possible, my computer being infected even if i have an anti-virus installed? The answer is very big yes. Not all anti-virus can detect all viruses especially those new type and variants of viruses, especially if your anti-virus database is not updated regularly. Wait what do you mean Anti-virus database? Well you see all anti-virus as a list of virus and there corresponding mark. The terms for this are virus definitions files or database. Yup each one has this list of threats and only the virus listed on that threat and all its variants is the only detectable virus for the anti-virus. You will need other type of anti-virus to detect others. But there are anti-virus who offers complete detection from regular virus to, malware, ad-ware and spyware. This anti-virus suite does not come free. You have to buy them. Most free version can only scan and protect your computer for a certain degree that why is it recommended to practice safe browsing and opening of email on a regular basis. It's better to be safe than to be sorry.


Another potential source of virus is the very useful USB flash drive that rights that very small but very big container that is very easy to use. You just plug it in and presto you have an additional storage space. This is also their weakness, if this Flash disk contains an infected file or itself is infected with a virus, chances are when you plug it into your computer your anti-virus will detect and remover the threat or it will do nothing and will allow the virus to load itself onto your computer's hard drive. Some virus the commonly infect this type of devices, create a replica of itself but the picture is a folder or a file. When the user click on thinking it was the file or folder, presto there goes all your files and folder. Imagine a virus that looks like a folder. You can verify this by viewing the directories in detailed mode. A folder does not have an extension name correct. In an infected folder it has a DOT EXE as an extension name and it is not a folder but an application as verified by the directories listing. What happen to the real files? Well it's there; you just can't see it because it is hidden. To view it you need to unhide all system files and hidden files using the file view option in the control panel. But this is dangerous you. All system files and protected system folder are hidden for their protection. Un-hiding the greatly exposes each item of being deleted or manipulated so be very careful. A word of CAUTION and WARNING do not do the things mentioned above if you are new or not familiar with the procedure, it may cause more harm than good to you computer system. I try to provide with a step by step procedure in how to it complete with picture on my future blog. So before you plug one of these handy devices to your computer make sure you scan them first thoroughly and properly. Also if you one of this does not just plug it anywhere and everywhere, this will minimize it from being infected by viruses. So practice self know and restrained in using these devices. And lastly but not the list make sure to update your anti-virus database or virus definition file regularly. This at least will help you in keeping the most common virus away from your computer.

Another potential source of infection is chatting; yup your computer could also be infected via this avenue if you are not careful and vigilant. What even in chatting? Yup that correct, how is this so? Well there are a lot of ways where you talk or chat with friends on the internet. Also a lot of programs that offers this kind feature and much more.. More than that in chatting sometimes you talk about a lot or you request a file to be sent to you, not via email, but who want it sent through the chatting software that you are using. If that is possible so the virus being sent thru is also possible, disguise as an important file or picture from a supposedly friend of yours, when you click on it to download it. It will immediately activate and infect your computer. So while chatting with friends practice being vigilant to avoid unnecessary problems with virus infection in you computer. Whenever your computer is connected to the internet and attaching devices to your computer, being vigilant and thorough will help keep your computer from being infected and therefore more productive time and usage from your machine. 

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