Google Safe Browsing has picked up that there is a problem too as you’ll see from the screenshot below … the infections I have seen hitting a computer after a user visited wikia.com are win64/Sirefef and win32/obfuscator and win32/winwebsec.  It happened twice in less than a week – the latest incident occurred just 48 hours ago – and the poor guy hit had to reformat his laptop both times.  I made some preliminary attempts to help the user clean up their computer the second time, but ended

  It’s interesting to see the subtle differences between each fake LinkedIn email…                     Here is a screenshot of the real thing…

  Another one, this time a “reminder”, not an invitation.

  Clicking on the links in such emails invariably lead to infection via various exploit kits, so I wouldn’t recommend that you yield to temptation, even if you know the email is fake… As always, hover over the link and it is obvious that the email is fake.

I have seen two, one pretending to be from alerts@irs.gov, the other pretending to be from noreply@irs.gov.  They are, of course, fake, which is obvious when you hover over the hyperlinks.  

  Text: You have to check in from 24 hours and up to 60 minutes before your flight (2 hours if you're flying internationally). After that, all you need to do is print your boarding pass and go to the gate. Confirmation code: 032421 Check-in online: Online reservation details Flight 5352 Departure city and time Washington, DC (DCA) 10:00PM Depart date: 7/26/2012   As always, if you hover over the hyperlink, it becomes obvious that the email is fake.

  As always, hover over the link and it’s obviously fake.  The text of the message is: “ Dear accountant officer, We have been informed of your alleged assistance in income tax refund infringement  for one of your employers. According to AICPA Bylaw Section 765 your Certified Public Accountant status can be cancelled in case of the aiding of submitting of a misguided or fraudulent tax return on the member's or a client's behalf. Please familiarize yourself with the notification

    As always, if you hover over the hyperlinks in the email it becomes obvious that the email is a fake.

Picture says it all, really.