Actually, it looks like a pop up to get you to click "OK" and download the virus or trojan from a remote server. Never click "OK"
Clear your temp files.
Down load AVG, and install and run it.
If it checks out clear,good.
Then go to Trendmicro and run their online scanner, Housecall.
Between the two of these your machine should clear up. If it doesn't, then something like
Spybot or another spyware hunting program may be necessary.
If you are running XP or Vista, turn of the auto restore option prior to running the anti virus programs. I had a friends computer that the restore file kept putting the infection back into the computer after we cleaned it.
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As a side note, I had a real estate friend that asked me to check his comps.
He had Norton, and we made sure to update his AV programs to the latest releases.
When scanned, the nortan pronouced all three of his computers clean.
However, when we ran Trendmicro, it started finding infections.
Each time trendmicro found an infection, the Norton program would pop up and declare that
it also found the infection. This is right after it had just declared the computers clean?!? ???
In all we found six different infection in about 16 locations on all three of the computers.
I installed AVG on his comps, and they were clean till the day he gave them up for new computers.
(I believe that the free AVG version is typically 30 days behind the "
latest" updates. If you visit riske' websites, it may benefit you to pay for a full version. If you are a careful internet user, 30 days old is not a bad risk considering the price for AVG is free.)