The Kido network worm and the Sality virus continue to occupy the top four places. A new variant of the popular P2P-Worm.Palevo claimed eleventh spot in the list. At least 50,000 removable devices fell victim to two new variants of Trojan.Win32.Autorun that currently occupy eighteenth and twentieth place in our first Top 20 list. The second Top Twenty list below shows data generated by the web antivirus component and reflects the online threat landscape.”]
Source: https://securelist.com/monthly-malware-statistics-june-2010/36308/