How does zero day malware differ from standard malware?

Zero day malware, also known as absolutely no hour malware or no day attacks, is a type of malware that makes the most of a formerly unidentified software vulnerability. Attackers who have the ability to make use of these vulnerabilities can gain access to a system or network without any detection. This makes no day malware a serious danger to services and people alike.

https://heathergreenphoto.com/?p=370 Standard malware, on the other hand, is malware that is well-known and has actually been around for some time.  https://zerogov.net/?p=848 Standard malware can still be hazardous, it is not as tough or sneaky to discover as absolutely no day malware.