Spotting a PC Infection

It's a common fear, stoked by never-ending news of major threats like the Conficker worm and yet another database hack: Is my computer infected with malware?

Antivirus maker Sophos put up some basic guidance that can help answer that perennial question. The tips, such as looking out for changes to the default search engine or random site redirects, are geared towards the non-expert home user.

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