Is it possible to be exposed to a trojan virus by clicking on a banner ad at the top of an E-Hell forum page?
BACKGROUND: This afternoon I was reading some old messages here on E-Hell. I was not logged in at the time. (I have gotten lazy and sometimes only log in if I am wanting to post. I think there would be a record of someone visiting from my IP address this afternoon, though, if moderators wanted to check on my story.)
There was a banner ad at the top of the page that I was curious about, so I clicked on it. (I will put a PS at the end of this post and say the name of the banner ad, but it is sort of embarrassing, so I'll skip over it for now.)
Within a half second of clicking on the banner ad, my whole browser disappeared from my monitor and a new small window appeared from my anti-virus software, announcing that I had been infected with a trojan ("W3i.IQ5.fraud") but that the trojan had been quarantined and that I did not need to take any action.
At that point I was unable to re-start the browser I had been using (the Opera browser) because the Opera.exe file had disappeared from its folder. (I assume that my anti-virus software deleted it?)
It would take several paragraphs to say what I did for the next couple of hours with my anti-virus software and with Spy-bot, but I did seem to clear the "W3i.IQ5.fraud" trojan from my computer after running Spy-bot twice, and everything seems fine now.
So, my questions are:
1.) Is it possible my computer was infected by clicking on the banner ad here? Or is that highly unlikely (which would mean the timing of the attack was a coincidence, I guess).
2.)If it is possible that I was infected here, is there something I should do to alert the moderators (besides posting this question here)?
Have you heard of a silly advertisement on YouTube for a company called Dollar Shave Club? Well, their ad is kind of silly, and I watched it when it came out a while back. Then they came out with an "in-poor-taste" ad for a bathroom product that I saw on YouTube, also. (I'd like to think I have better taste than that most of the time!)
This afternoon, at the top of the E-Hell forum page I was reading, I saw a banner ad for Dollar Diaper Club. Well, it has been at least a dozen years since we've needed to buy diapers at our house, but I thought that particular banner ad would take me to another silly video ad from the same company that does Dollar Shave Club. It never entered my mind that clicking on it could lead to two hours of work to disinfect my computer, if, indeed the virus came from clicking on the banner ad!