Zero day malware, likewise known as zero hour malware or absolutely no day attacks, is a kind of malware that takes benefit of a formerly unknown software vulnerability. Attackers who have the ability to exploit these vulnerabilities can access to a system or network with no detection. https://scarabnet.org/?p=1024 This makes no day malware a severe danger to businesses and people alike.
Standard malware, on the other hand, is malware that is well-known and has been around for a long time. https://signsong.org.uk/?p=442 Standard malware can still be hazardous, it is not as sneaky or tough to discover as no day malware.