How does absolutely no day malware vary from standard malware?

No day malware, also known as no hour malware or no day attacks, is a type of malware that benefits from a formerly unidentified software vulnerability.  you could look here Attackers who are able to make use of these vulnerabilities can gain access to a system or network with no detection. This makes no day malware a major danger to individuals and organizations alike.

Traditional malware, on the other hand, is malware that is well-known and has been around for a long time. Although standard malware can still be unsafe, it is not as challenging or sneaky to identify as absolutely no day malware. check my reference