Microsoft has in the second half of 2007 increased by 66.7% of detections of potentially unwanted software "compared to the previous semester. Information obtained via the removal tool for malicious software (MSRT) is included with Windows XP and Vista, fitted to a base of 450 million PCs in the world.
In total, 129.5 million of these software parasites were detected between 1 July and 31 December 2007. Win32/Hotbar has had the largest volume of attempted infections. According to Microsoft, it is polluting P2P networks as files bombs and attempting to infect systems via spam. This program installs a dynamic toolbar in Internet Explorer and displays pop-up ads, chosen for the analysis of Internet activity.
It contains the buttons differ depending on the current Web page and keywords in it. Click a button on the toolbar can display an advertiser's Web site or a search fee. Hotbar also installs graphics skins for Internet Explorer, Outlook and Outlook Express.
This parasite may collect user information, download and install updates or any other code automatically from its servers, Microsoft notes. The antivirus market or Microsoft tool (MSRT) normally block the program, dated April 2007 and was therefore included in the signature of most viruses. It must of course have a day to protect them. But this does not prevent them clearly to conduct a large number of attempts of infection, according to Microsoft.
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