From Spam Daily News
IMlogic Threat Center reports new instant messaging phishing attack which sends IM users a message telling them their account will be blocked unless they respond to a terms of service violation.
This attack sends users a message that appears to be from the Yahoo "abuse department" and informs the user that they are in violation of the Yahoo Terms of Service Agreement and they must respond to this complaint to prevent their account from being deactivated. The message includes a URL to a malicious site that appears to be the Yahoo! login page.
The phishing attack is propagating from a buddy named 'ychat_complaint_dept_6b'. It will likely mutate with other variations of the screen name as it progresses. The Yahoo! messenger will ask for permission to add this buddy to your buddy list and then delivers the message.
This form of social engineering has been particularly effective especially with the message focused on a loss of the service, says IMlogic.
SOURCE: IMlogic, Inc.