Systems and methods for detecting malicious processes in a non-signature based manner are disclosed. The system and method may include gathering features of processes running on an electronic device, applying a set of rules to the features, and applying a statistical analysis to the results of the rules application to determine whether a process should be classified into one or more of a plurality of process categories.

System and method for non-signature based detection of malicious processes

A periodic control window is embedded in a link layer data stream to be sent over a serial data link, where the control window is configured to provide physical layer information including information for use in initiating state transitions on the data link. The link layer data can be sent during a link transmitting state of the data link and the control window can interrupt the sending of flits. In one aspect, the information includes link width transition data indicating an attempt to change the number of active lanes on the link.

High performance interconnect physical layer

The invention discloses a large-data-flow-based network traffic abnormality detection system and method. The large-data-flow-based network traffic abnormality detection method is characterized by comprising the following steps: acquiring network packet information in network equipment in real time in a distributed manner; transmitting the network packet information to a distributed flow processing platform in real time for network data analysis, feature matching and access counting; storing the analyzed and detected network data into a large data platform according to an abnormal status so as to facilitate clustering analysis and classified training of the network data and dynamically update a network data protocol characteristic library. Through the system and the method, real-time detection is achieved through a distributed flow-type processing mechanism; through distributed storage of the large data platform and through the data calculating and analyzing capability, the distributed storage of the network data is achieved and the network data protocol characteristic library can be trained more accurately.

Large-data-flow-based network traffic abnormality detection system and method

The invention provides a web application layer attack detection and defense method based on behavior feature matching and analysis. The method comprises the following steps of presetting a defense rule base, wherein the defense rule base comprises a plurality of defense rules; obtaining a record that the access request data in a web application protection system is matched with the defense rule base; using the record content as sample data; learning the sample data; building an analysis model; building a user credit database; installing a blacklist module in the user credit database; learning the visit behavior of the user through a analysis model; updating and correcting the defense rules in the defense rule base; building an exceptional defense rule base; setting a defense method; intercepting the user visit behavior according to the set defense method. The malicious behavior can be precisely recognized; the dynamic loading and updating can be performed in real time by the malicious act rule base; through intelligently learning the user behavior, the threat behaviors can be fast recognized and prevented; the security of a web server is guaranteed.

Web application layer attack detection and defense method based on behavior feature matching and analysis

Method and device for browsing web pages

The invention relates to a resource management method suitable for a multilayer satellite system. The resource management method adopts the following design principle that high altitude satellites are used as reserved resources and are specially used for distributing resources for users with high priorities and high QOS (Quality of Service) requirements and distributing the resources for the user as required in a real-time manner; and meanwhile, low earth orbit satellites are combined and are used as ground network supplements, the characteristics of high-speed motion and the like of the low earth orbit satellites are considered and a method for dynamically distributing the resources for users with low priorities by using efficiency, cost and user publicity as evaluation indexes is designed. According to the design, the characteristics of the high altitude satellites and the low earth orbit satellites are combined; the priorities of the users are considered; the resources are distributed for the users with high priorities as required; a multi-target evaluation function is designed for the users with low priorities; and the multi-target evaluation function is nondimensionalized, so that in the resource management process, the evaluation indexes of other targets are not ignored due to an excessive function value of a certain index, and thus, a multi-target optimization method which has the advantages of short time delay, high bandwidth utilization rate and balanced resource distribution is integrally implemented.

Resource management method suitable for multilayer satellite system

Method for protecting Java program progress based on inheritance relationship among progresses

The invention discloses a multi-layer effective routing method applied to a delay tolerant network (DTN). At present, Internet based on a TCP (Transmission Control Protocol)/IP (Internet Protocol) protocol is applied widely. However, the TCP/IP cannot be well applied to networks such as high-altitude area networks, satellite networks, and the like. The (DTN) is a type of delay/interrupt tolerant network, which has the characteristics of long delay, no end-to-end chain or frequent interrupt of the chain at a certain moment, low capability of node storing/calculating capacity, and the like. A DTN framework and a bundle protocol are introduced briefly, and the throughput rate of the DTN is increased and the channel general utilization ratio is lowered by improving a routing algorithm used by the DTN.

Multilayer effective routing method applied to delay tolerant network (DTN)

The invention discloses a filter drive encryption implementing method for a file system. The encryption method comprises the following steps of: 1, after a drive program is started and when an opened file is returned to an application program, acquiring the name and the size of the file; 2, judging whether the progress of opening the file is a confidential progress; 3, if the size of the file is greater than that of an encryption identification structure, reading information of the same size from the header of the file and comparing the information with the information of the encryption identification structure; and 4, when the file is read and if the file is an encrypted file, performing decryption; and when the file is returned to the application program, judging whether the original file is an encrypted file in write operation, if so, encrypting the file and storing the file into a disc file, otherwise, directly storing the file into the disc file without encryption. Compared with the conventional file filter drive, the method has the advantage that: the kernel developer of Microsoft develops a new drive which is called as a filter manager.

Filter drive encryption implementing method for file system

Method for enhancing transmission protocols in satellite communication system

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