Electronics and Telecommunications Research Institute

Sang Kyun Noh

Dong Soo Kim

Cheol Won Lee

Won Ho Kim

Young Tae Yun

Yo Sik Kim

Yoon Jung Chung

Yu Jung Han

Ki Wook Sohn

Provided are an apparatus, system and method for detecting malicious code inserted into a normal process in disguise. The apparatus includes a malicious code detection module for extracting information on a thread generated by a process running on a computer system to identify code related to the thread, preliminarily determining whether or not the identified code is malicious and extracting the code preliminarily determined to be malicious; and a forcible malicious code termination module for finally determining the code as malicious code based on an analysis result of behavior of the extracted code executed in a virtual environment and forcibly terminating execution of the code.

Apparatus, system and method for detecting malicious code

A defense method and device against intelligent bots using masqueraded virtual machine information are provided. The method includes performing global hooking on a virtual machine detection request transmitted by a process, determining, on the basis of pre-stored malicious process information, whether or not the process transmitting the virtual machine detection request corresponds to a malicious process, and when the process is found to correspond to the malicious process as a result of the determination, determining that the process is generated by the intelligent bot, and returning the masqueraded virtual machine information to the process.

Defense method and device against intelligent bots using masqueraded virtual machine information

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.

Virtual server and method for identifying zombie, and sinkhole server and method for integratedly managing zombie information

Growing community of inventors

Gwangju, South Korea

Sang Kyun Noh