What is the most common type of zero day malware?

Zero day malware is a type of malware that is not yet understood to the anti-virus software application.  findhttps://gulfoilspillrecovery.org/?p=1130 The most typical type of no day malware is a trojan horse. A trojan horse is a type of malware that disguises itself as a harmless program in order to gain access to a system. https://geogenes.org/?p=1289