What is zero day malware?

No day malware is malware that is not yet known to anti-virus software application vendors or companies. It makes use of vulnerabilities in software or hardware that have not yet been covered or fixed. The term "zero day" comes from the fact that as soon as the malware is found, there is absolutely no time to patch the vulnerabilities prior to attackers can exploit them.

Absolutely no day malware is often utilized in targeted attacks against particular companies or people. The opponents will carefully select their targets, and then craft their malware to particularly make use of the vulnerabilities in those target's systems. This makes no day malware really hard to protect and detect versus.

One of the most famous examples of absolutely no day malware is the Stuxnet worm, which was utilized to attack commercial control systems.  https://geogenes.org/?p=417 Stuxnet was able to spread itself through USB drives and infected networks of computer systems, without being detected by anti-virus software. It then specifically targeted Siemens commercial control systems, and caused physical damage to centrifuges in Iran.

No day malware is a severe hazard to individuals and companies. It is necessary to keep your systems up-to-date with the current security spots, and to be knowledgeable about the most recent dangers.