The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 22, 2014
Filed:
Jan. 06, 2011
Sang Kyun Noh, Gwangju, KR;
Young Tae Yun, Daejeon, KR;
Dong Soo Kim, Pohang-si, KR;
Yo Sik Kim, Daejeon, KR;
Yoon Jung Chung, Seongnam-si, KR;
Won Ho Kim, Daejeon, KR;
Yu Jung Han, Suwon-si, KR;
Cheol Won Lee, Daejeon, KR;
Sang Kyun Noh, Gwangju, KR;
Young Tae Yun, Daejeon, KR;
Dong Soo Kim, Pohang-si, KR;
Yo Sik Kim, Daejeon, KR;
Yoon Jung Chung, Seongnam-si, KR;
Won Ho Kim, Daejeon, KR;
Yu Jung Han, Suwon-si, KR;
Cheol Won Lee, Daejeon, KR;
Eletronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are a virtual server and method for identifying a zombie, and a sinkhole server and method for integratedly managing zombie information. The virtual server includes an authentication processing module authenticating a host using a CAPTCHA test and providing a cookie to the authenticated host when a web server access request message received from the host does not include a cookie, a cookie value verification module for extracting a cookie value from the web server access request message and verifying the extracted cookie value when the web server access request message includes a cookie, a web page access inducement module for inducing the host to access a web server when the cookie value is verified, and a zombie identification module for blocking access of the host when the cookie value is not verified, and identifying the host as a zombie when the number of blocking operations exceeds a threshold value.