F-Secure data indicates that what is making computers most vulnerable to exploits are unpatched or out-of-date versions of the most widely-used software for PCs. Between 80-90% of users have security holes in their systems with on average 5 different vulnerabilities in the software on their computers. Users don’t remove the old versions of their programs and the vulnerabilities in them can leave the computer wide open to malware or malicious software.
Trojans are a typical example of the kinds programs which take advantage of vulnerabilities. They are malicious applications which appear to do one thing but actually do another, giving the criminal access to your computer.
F-Secure Exploit Shield is a free beta tool that recognizes attempts to exploit a known web-based vulnerability and shields the user against them. It also works against new, unknown vulnerability exploits by using generic detection techniques based on the behavior of exploits.
Download: F-Secure Exploit Shield