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Attention: Malware On Your Computer?

Posted by fogview at 11:55 PM on December 20, 2009

“Security center has detected malware on your computer.” Have you ever seen that message pop up on your computer? Have you ever seen it happen over Skype? Well, I’ve received that message three times in the last month as a Skype message. It tells me that my Windows software is infected and I need to install a patch. It even gave me a website (link) to go to to help me install the patch.

Skype Malware Message

I may have fallen for the trick but I don’t know how a Windows patch would fix my iMac running OSX. I don’t run Bootcamp, or Windows in a virtual machine, nor does my iMac know what an .EXE or ActiveX file is. I’m sure if I clicked on this link and installed the patch on my Windows machine, my machine WOULD have been infected with malware! (For now Mac machines may be safer from malware infections but it’s wise to still be careful.)

I’ve written before about being safe on the Internet and not going to sites you don’t know or clicking on links in emails, but this is the first I heard of a message over Skype. If you look at the message box (on my iMac), it doesn’t even say it’s from Skype and the window title says. “Software Updates.”

What concerns me is that many people may fall for this trick. I know most readers of GNC and listener’s to Todd’s podcast are tech savvy enough that they wouldn’t fall for something like this, but what about mom (or dad) or your grand parents who get a web cam for Christmas and install Skype so they can talk to the grand kids? Would they click on this link and install the “patch” if this message box appeared?

Google is trying to find sites that install spyware and root-kit software on your computer, but you can’t depend on this for every “bad” website. Recently there was a SQL-injection virus that infected a large number of websites. The virus takes advantage of PCs running Windows that have not been patched with the latest updates. You don’t have to click on any links to get infected — just visit a site taken over by this malware software. It does this by linking to the site 318x dot com (please don’t go to this site). If you search for 318x dot com using google, the first search listing says “This site may harm your computer.” That because this site has been around for a while and has given enough time for Google’s security bots to find the site and determine that it’s up to no good. Here is the link for the Google Safe Browsing page for the 318X site: http://google.com/safebrowsing/diagnostic?site=318x.com/

Now back to my Skype message. I mentioned that this is the third time I’ve received this message in the past month. Each time I did a Whois search of the linked website and found that the website was created within one day of when I received the message. The website mentioned in the most recent warning message was created the same day I received the message. This tells me that the author of this warning message is changing the website URL to keep it from being flagged by Google and the security monitoring sites. If you do a Google search for this site it comes up clean. Oh, did I mention that the owner of this site (and the previous two sites) is from Prague, Czech Republic (outside US laws)?

As you visit relatives and friends over the holidays make sure everyone knows about safe surfing on the Internet. Don’t click on links in emails (or Skype message boxes) and make sure to keep your computer’s OS patched and up to date.

Happy Holidays.

73′s, Tom