MYTOB variant fakes email errors
A new variant of the MYTOB worm has been discovered that pretends to be a legitimate email warning of a delivery error or email account problem.
The worm, WORM_MYTOB.ED was the 100th variant to be identified since the MYTOB worm first appeared in February this year, security vendor Trend Micro has said in a statement. The worm propagated by sending a copy of itself as an email attachment which it sent using its own Simple Mail Transfer Prorocol (SMTP) engine, the company said.
Email addresses were harvested from the Temporary Internet Folder Windows Address Book, as well as from files with certain extension names. The worm was also able to generate email addresses by combining names and domains that had previously been gathered.