From OS Security:
OSsurance's kernel firewall technology is your last line of defense. It stops the execution of spyware, viruses, buffer overflows (BoF), worms, and trojans, which the user has not purposely authorized. No updates are required. This all-in-one kernel-enforced protection acts as a firewall inside the operating system, allowing only authorized programs to install or to run, even if they passed through hardware firewalls or a non-current anti-virus. OSsurance's Secure Transaction Module (STM) prevents the user's passwords and commerce information in SSL-secured transactions from being stolen by hackers who replace SSL components on your PC with spyware. Permanent license available.