Does my existing Anti-Virus software protect against this threat?

We cannot answer that. Your existing anti-virus protection is only as good as the latest definition files, and we can’t tell you which products on the market are confirmed to protect against this threat. What we can tell you is that there is NO anti-virus software on the market today that provides the same type of protection that CryptoPrevent provides, it works in an entirely different manner. Since the two can co-exist on the same PC peacefully, why not utilize both methods of protection?