Google: Microsoft IIS Serves Up More Malware

Security is one of the few areas where Google and Microsoft haven't been squaring off for battle, but a recent post on Google's new Online Security Blog could signal a change on that front. In a Tuesday blog item, Google posted results of an internal study that examines the types of Web servers that are […]

Security is one of the few areas where Google and Microsoft haven't been squaring off for battle, but a recent post on Google's new Online Security Blog could signal a change on that front. In a Tuesday blog item, Google posted results of an internal study that examines the types of Web servers that are most commonly being used to host malware and dish up browser exploits and drive-by downloads.

In looking at around 70,000 domains that have in the past month been hosting or distributing malware, Google found that Microsoft's Internet Information Server (IIS) and Apache server each account for 49 percent of the malware.

However, after examining Web servers running about 80 million domain names across the Internet, Google found that 66 percent were Apache and 23 percent were IIS, which means IIS is twice as likely to be hosting malware, according to Nagendra Modadugu of Google's Anti-Malware Team.

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Google, Microsoft, IIS Server, Malware