Beijing Qihoo Technology Company Limited

Qizhi Software (beijing) Company Limited

Wenbin Zheng

Paul Fan

Yu Wang

Hongyi Zhou

He Yu

Xiaolin Zhang

Jianhua Lu

A method and system for unlocking and deleting a file or a folder. The method for unlocking the file or the folder comprises: receiving an unlock request of a file or a folder, wherein the unlock request includes an input parameter; verifying whether the input parameter complies with a preset condition; if the input parameter complies with the preset condition, correcting a deformed path format of the file or the folder and/or the special file name of the file or the special folder name of the folder according to a preset rule; determining whether restrictive setting of the corrected file or folder is present; and if yes, cleaning the restrictive setting of the file or the folder. The embodiments of the present invention relieves layer by layer the protections arranged by files infected with a virus by employing a plurality of means such as removing the read-only lock, removing the routine lock, adding the authority and closing the handle, thereby increasing the confrontation capacity of a security software against a malignant program.

Method and system for unlocking and deleting file and folder

The present invention relates to an active defense method based on cloud security comprising: a client collecting and sending a program behavior launched by a program thereon and/or a program feature of the program launching the program behavior to a server; with respect to the program feature and/or the program behavior sent by the client, the server performing an analysis and comparison in its database, making a determination on the program based on the comparison result, and feeding back to the client; based on the feedback determination result, the client deciding whether to intercept the program behavior, terminate execution of the program and/or clean up the program, and restore the system environment. The invention introduces a cloud security architecture, and employs a behavior feature based on active defense to search and kill a malicious program, thereby ensuring network security.

Active defense method on the basis of cloud security

The invention discloses a method and system for detecting a behavior of remotely intruding into a computer, wherein the method comprises: monitoring a process creating event in a system; when a request for creating a process is monitored, intercepting the process creating request; by analyzing the process, an ancestor process of the process and a currently opened port, judging whether the process creating operation is normal; and if the process creating request is abnormal, determining the process creating request to be a behavior of remotely intruding into a computer. The invention can detect a remote intrusion behavior without the intervention of a user, and will not cause stored data to expand excessively.

Method and system for detecting behavior of remotely intruding into computer

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Beijing, China

Wenbin Zheng