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Methods of detecting DNS flooding attack according to characteristics of type of attack traffic
US8943586B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8943586-B2 |
| Application number | US-201213529961-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 21, 2012 |
| Priority date | Jul 29, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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Disclosed are methods of detecting a domain name server (DNS) flooding attack according to characteristics of a type of attack traffic. A method of detecting an attack by checking a DNS packet transmitted over a network in a computer device connected to the network, includes determining whether the number of DNS packets previously generated within a threshold time with the same type of message, the same specific address and the same field value as in the transmitted packet is greater than or equal to a given number, and determining the transmitted DNS packet as a packet related to the attack if the number of DNS packets previously generated within the threshold time is greater than or equal to the given number.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of detecting an attack by checking a DNS packet transmitted over a network in a computer device connected to the network, comprising: when the DNS packet includes a first query message: determining whether a first previous entry corresponding to the DNS packet exists; when the first previous entry does not exist, creating a new entry for the DNS packet, the new entry including an entry generation time; and when the first previous entry exists,…
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Physics · mapped topic
Electricity · mapped topic
- G06F21/552Primary
Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8943586B2 cover?
- Disclosed are methods of detecting a domain name server (DNS) flooding attack according to characteristics of a type of attack traffic. A method of detecting an attack by checking a DNS packet transmitted over a network in a computer device connected to the network, includes determining whether the number of DNS packets previously generated within a threshold time with the same type of message,…
- Who is the assignee on this patent?
- Kim Byoung Koo, Korea Electronics Telecomm
- What technology area does this patent fall under?
- Primary CPC classification G06F21/552. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).