Explanation
The Threat Prevention Software Blade that provides protection from malicious software that can infect your network computers is Anti-Virus. Anti-Virus is a software blade that scans files and traffic for viruses, worms, trojans, spyware, and other malware. Anti-Virus can block or clean infected files and prevent malware outbreaks. IPS is a software blade that provides protection from network attacks and exploits. Anti-Malware is not a software blade, but rather a term that refers to any software that can detect and remove malware. Content Awareness is a software blade that provides visibility and control over data that enters or leaves the network based on file types, data types, and keywords.
References: [Anti-Virus Software Blade], [IPS Software Blade], [What is Anti-Malware?], [Content Awareness Software Blade]