Anti-Malware is a solution that maintains computer security and protects sensitive data that is transmitted by a network or stored on local devices. Anti-malware tools employ signature based scanning strategies as well as heuristics to detect rootkits, worms, Trojans and other types of damaging malware. Anti-Malware is similar to Antivirus in that it protects your systems and devices from viruses. Anti-Malware is essentially another version of Anti-Virus, covering additional types of malware. Antivirus depends more on the signatures of known viruses to detect and prevent infections, much like a flu shot. In comparison, Anti-Malware can identify malware based upon abnormal or harmful behaviors rather than signatures, to detect malicious software.
In general, both protections are advisable for computing systems today.
Source: Fraud Watch Intl.
Additional Reading: Lifehacker: the Difference between Anti-Malware and Antivirus
Related Terms: Antivirus