A new Internet worm dubbed "Here You Have" is streaming into worldwide inboxes, offering a dangerous payload, according to McAfee Labs. The worm, which travels via spam email with the subject line of "Here you have," or "Just for you," masquerades as an email with a link to a video or an attached document file. However, the email actually contains a link to a malicious program that can disable security software and send itself to all the contacts in the recipient's address book.
Corporations around the world were particularly affected by the worm on Thursday as it clogged up their email systems. Consumers could be affected as they go home and log onto their machines. For this reason, McAfee Labs has labeled the worm as a "medium" risk, and warns all computer users to delete any email with the "Here you have," or "Just for you," subject line.
Although the dangerous link has been taken down, neutralizing the threat, it can still spread through remote machines, mapped drives and removable media, Labs warns.
source..... McAfee News letter