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Kak Virus

 


Here are some common misbeliefs about viri.

#1 Misnomer: "Viri will come from people you don't know."
    WRONG! They only come from people you know. KAK, Melissa, I Love You, Magistrate & Klez all attack your address book. So it e-mails people you know. What it does after that depends on the virus. In most cases, it sends you a copy of the virus from your friend, the virus changes the sender's name. It may look like it came from Joe Schmoe when it actually came from your friend.

#2 Misnomer: "All viri will be stopped by our software."
    I wish!!! But sadly wrong again. There are over 75,000 known viri out there...how many are yet to be discovered? If you feel unsure about downloading from the Internet or getting attachments from e-mail. Then don't download them. If all else, always download into the same folder (ie C:\Downloads) then do a virus scan on that file or that folder. It's better to waste 5 minutes and be safe then to be sorry and have your computer down for a few days/weeks due to repairs and lost information. Most computer repair companies will take longer and charge more for repairing a virus attacked computer.

#3 Misnomer: "If you open up the e-mail then click delete it will delete the e-mail and virus without infecting my system."
    Wrong! As soon as you open up that piece of e-mail or even preview it, you have infected your computer. If you think you have a virus in your e-mail and are not sure what to do, ask someone who understands the program! I'd rather you take a few minutes of my time then for you have to reinstall all of the software on your computer. (example: Windows 98se takes 30 minutes to install and another 10 to 30 minutes to configure all the hardware and software. If your files need recovered before a full reinstall, that can take hours to hunt them down.)

    Most of the newer viri take full advantage of the preview features in Microsoft's e-mail software. If you have attachments that are pictures or a Visual Basic application (like the I Love You bug) or some of the newer ones utilize html-based (web page) e-mail to start the virus, Outlook automatically opens or runs these files. In both Outlook Express and Microsoft Outlook, the preview feature can be turned off so that you can see the file name of the attachment before you open it. Also, on the Microsoft web site, there are many patches and fixes that will disable the auto-preview feature.

    Because so many of the newer viri have an html script, the preview feature is a great asset to spreading the virus. HTML is the language they use to write web pages. I'm sure you have gone to a web site and those annoying ad windows open up.... same principal. Replace the ad with a virus and you have a perfect delivery system.

    The older "hardcore" viri don't pop up that often anymore. Most of the simplest AV software will catch it before it does any damage. We've come to the age where viri creators don't hit just one or two computers anymore. They want the popularity and fame when they hit thousands of machines with annoying little bugs.

    There are some newer, more violent viri that come through e-mail such as the Magistrate, SirCam or the Klez virus. Most of these newer ones are rather brutal but they all seem to have a 7 day window where they can be removed with little or no damage to the system. Unfortunately, you usually don't know when the initial infection occurred unless you are on-line quite often. I say that, because most of the viri send out copies of its self via e-mail the same day you receive the bug.

TIP: If you receive an attachment in the e-mail you are unsure of, here are a few things to check before taking action.

bulletFirst: note the extension of the file. That is the 3-letter abbreviation the follows a file name. doc - document, xls - excel spreadsheet, jpg - picture file, exe - executable file. Follow this link to see some more file extensions. The extensions you want to avoid are .bat, .pif, .exe, .com, .scr  There are more, but these are the most common that viri hide in.
bulletSecond: Does the subject or the body of the e-mail make sense? Many of the e-mail viri send messages with "baby talk" for the body and the subject is usually something rather confusing. This is a sure sign of a virus.
bulletThird: For some strange reason, e-mail viri have difficulty with time. Most that I have seen tend to put a 'send time' on of some wee hour in the morning. Does this match up with what you know about the sender's sleeping patterns? Is the person at work when the e-mail was sent?

If you receive a questionable e-mail. Don't hesitate to delete it. You can always contact the sender and confirm it's validity.

    Becareful out there, it's not all bad, only about 20% of it.

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