ARrrggh! Have any of you met that super annoying ad that takes over your browser - even firefox on Mac - and hides all the windows while showing a very serious looking alert that reads:
NOTICE: If your computer has errors in the registry database or file system, it could cause unpredictable or erratic behaviour, freezes and crashes. Fixing these errors can increase your computer's performance and prevent data loss. Would you like to install SystemDoctor to check your computer for free? (Recommended)
CANCEL / OK
The next panel/window appears after clicking either cancel or OK - and tries to freak you out even more, just in case that temporary "hide" of all your browser windows didn't get your attention:
NOTICE: You have not completed the errors scan. If your computer has errors in file system or Windows registry, it could cause unpredictable or erratic PC behavior, freezes, crashes and loss of data.
You need to install SystemDoctor to scan for, and if found, fix system errors now (Recommended)?
CANCEL / OK
Finally, your browser will hop over to https://www.systemdoctor.com/download/2006/
index.php?aid=edgerest_ed2&lid=keyin&ex=1&p=19&ax=1 while displaying this text:
SystemDoctor will scan your system for errors now.
Please select "RUN" or "OPEN" when prompted to start the installation.
This file has been digitally signed and indepenently certified as 100% free of viruses, adware and spyware.
Once there you can leave, not install anything and remember to never buy any crap called system doctor in your life. However, some browsers will start an automatic download anyway - throw that crap away! And if you can, change your preferences/settings so that you have to approve each and every download from the web, it's safer that way.
System Doctor brags that it is 100% adware and spyware free, but is classified as adware. McAfee has gone all the way with this thing and shows what happens once it is installed - yeah, it'll ask you for your creditcard details. Yuck.
Update August 18 2007 Hacking web banner networks sends banner ads from hated to feared
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