What is a Zero-Day Attack?

guest · Apr 2, 2019

What is a Zero-Day Attack?
April 2, 2019
https://blog.radware.com/security/2019/04/what-is-a-zero-day-attack/

Zero-day attacks are the latest, never-before-seen generation of attacks. They are not volumetric or detectable from a known application signature. Security systems and experts must react instantly to solve the new issues, that is, they have zero days to react. Advanced application-level attacks typically fit into this category.
Two Distinct Phases
Probe and Learn: Hackers assess network defenses and probe for vulnerabilities, looking for different weaknesses and identifying the type of attacks that will potentially be effective. [...]
Optimize, Morph and Attack: Hackers launch the attack and then vary the attack vectors (or arrows from the quiver). In this case, hackers often understand that legacy DDoS mitigators need manual intervention to troubleshoot and mitigate a zero-day attack. [...]
Who Are the Attackers?
The attackers can range from a tech-savvy teenager to a highly organized group that taps into huge server farms in places like Russia and Ukraine to facilitate attacks.
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itman · Apr 3, 2019

More important is number of zero day malware deployed at any given time. There is also a direct zero day malware correlation to zero day vulnerabilities. Bottom line - zero day attacks are rare.

The Prevalence of Zero-Day Vulnerabilities and Attacks

In 2017, zero-day attacks increased from eight in the previous year to a whopping 49.
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https://www.blackstratus.com/ultimate-guide-zero-day-attacks/

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What is a Zero-Day Attack?

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