Sirefef infections explode due to new infection technique

The Sirefef/Zaccess family of Trojans – designed to download other malware, disable the machine’s security features, and often make lasting changes to the computer – is usually distributed to unsuspecting victims via email spam campaigns.

But its peddlers have lately changed tack, and have begun bundling the malware with codecs, game installers and crack/keygen applications, Trend Micro warns.

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