Absolutely no day malware is malware that is not yet understood to anti-virus software suppliers or companies. https://sakeradvantage.com/?p=881 It exploits vulnerabilities in software or hardware that have actually not yet been covered or repaired. The term "absolutely no day" comes from the reality that when the malware is discovered, there is no time to spot the vulnerabilities before assailants can exploit them.
he has a good point Absolutely no day malware is frequently used in targeted attacks versus specific companies or individuals. The attackers will thoroughly choose their targets, and after that craft their malware to particularly exploit the vulnerabilities in those target's systems. This makes zero day malware very difficult to protect and spot against.
Among the most famous examples of absolutely no day malware is the Stuxnet worm, which was used to attack industrial control systems. Stuxnet was able to spread itself through USB drives and contaminated networks of computer systems, without being found by anti-virus software application. It then particularly targeted Siemens commercial control systems, and caused physical damage to centrifuges in Iran.
https://romanquarterconsultation.co.uk/?p=321 No day malware is a severe danger to people and organizations. It is very important to keep your systems up-to-date with the current security patches, and to be familiar with the most current risks.