The Rock Phish gang - one of the net's most notorious phishing outfits - has teamed up with another criminal heavyweight called Asprox in overhauling its network with state-of-the-art technology, according to researchers from RSA.
Over the past five months, Rock Phishers have painstakingly refurbished their infrastructure, introducing several sophisticated crimeware packages that get silently installed on the PCs of its victims. One of those programs makes infected machines part of a fast-flux botnet that adds reliability and resiliency to the Rock Phish network.
RSA researchers also noticed that a decrease in phishing attacks hosted on Rock Phishers' old servers coincided with never-before-seen phishing attacks used on the Asprox botnet.
"It just shows that these guys know each other and are willing to provide services to each other," said Joe Stewart, a researcher at SecureWorks who has spent years tracking Asprox and groups that use fast-flux botnets.
