
Antivirus companies are reporting the spread of a new variant of the mass-mailing PC virus known as “Bagle.” The latest version of the malicious software, which some experts refer to as an email worm, is rearing its head worldwide. By Thursday morning, virus trackers in China, Japan, the United States and parts of Europe had reported instances of the threat. Trend Micro said that the new offshoot, which it calls Bagle.AZ, is distributed as an email attachment that cloaks itself as a delivery notification or confirmation. It uses “spoofed” email addresses to appear to be from a known source.