Hi malware fighters,
Downloading files is the main cause of malware infections on the Internet. 53% of all infections are through malicious video codecs or opening unknown files, according to a Trend Micro survey:
Second biggest source of malware is through malware that is already active on a system to download additional malware. E-mail attachments and USB-sticks (Autorun malware) are also responsible for another 10%, and hold number three and four on the list. When we look at specific malware vectors for Europe Autorun malware is responsible for nearly 23% of malware infections.
Using iframes to infect people through drive-by downloads is only responsible for 7% of all malware that spreads that way. The percentages does not totall up to a 100%, because the majority of malware uses multiple attack vectors to infect,
polonus
P.S. -click picture to enlarge-