From the Forefront Blog:

Microsoft Forefront Threat Management Gateway (TMG) 2010 offers a dynamic response to security threats, providing a variety of security technologies such as anti-malware, firewall, and intrusion detection under one umbrella....

Check it out here: http://windowsitpro.com/article/articleid/103278/quickly-respond-to-security-threats-with-forefront-threat-management-gateway.html