9 results about "Virus process" patented technology

The application relates to the field of microorganism detection, in particular to a respiratory virus rapid detection kit based on ZIF-8 material and a preparation method, wherein the kit comprises a virus collecting device, an exhalation cylinder and a ZIF-8 membrane, the ZIF-8 membrane is detachably arranged in the exhalation cylinder, the ZIF-8 membrane comprises a chitosan layer, the chitosan layer is uniformly distributed with ZIF-8 material, virus particles in the exhaled gas of a tester through the exhalation cylinder are adsorbed, a sample processing device comprises a processing liquid, the processing liquid elutes and lyses the virus particles adsorbed by the ZIF-8 material distributed on the chitosan layer, and a virus processing liquid is obtained, a detection reagent is used for detecting the virus processing liquid and giving a detection result, sampling is simple and rapid, the detection can be completed without the participation of professionals, sampling efficiency is higher, and the detection sensitivity is effectively improved.

The application discloses a virus searching and killing method and system for distributed energy safety data, relates to the field of virus processing, and comprises the following steps: acquiring a virus original characteristic code, splitting the original characteristic code into N discontinuous but sequentially fixed segments F i , calculating the starting offset S i of each segment F i relative to the first segment F1, and constructing a virus characteristic database; then, the data stream is divided into multiple data blocks B i of fixed size, a fixed-size sliding window is adopted to perform scanning and matching association, and finally, threshold judgment is performed; the original virus characteristic code is subjected to fragmentation processing, the storage requirement of the virus characteristic database is reduced; the sliding window scanning can ensure that any characteristic combination is covered, and a matching event FP i is recorded instead of full data, so that the memory occupation is reduced; through comparison of the absolute offset SB i with an expected position, the correct sequence of the segment in the virus is ensured, a state machine can track the matching progress in real time, and the weight of only the segment with correct sequence is accumulated, so that the detection reliability is improved.

The present invention belongs to the technical field of network data security, and specifically discloses a data security storage and access system, comprising a storage device, an IP address and MAC address storage device, a management device and an access device, wherein the IP address and MAC address storage device is used to store the IP address and MAC address of the device allowed to access, and provide a random key for the management device; the management device is used to compare the IP and MAC addresses of the access device, provide a key for the access device, and also be used for virus processing; the storage device is used to identify viruses before data is stored, encrypt and store virus-free data, and provide a decrypted file for the access device; the access device needs to submit an access application to the management device before access, and obtain a key from the management device; after confirming the key, the management device submits the key to the IP address and MAC address storage device, exchanges internal data, and compares it with the access device. If the comparison fails, access is denied, otherwise access is allowed.

An embodiment of the present invention discloses a method and device for virus infection processing based on LuaJIT, which relates to the field of computer technology and can effectively simplify the maintenance of virus detection and killing services. The method includes: determining whether the target file is a virus-related file according to the file feature information of the target file and the virus feature information in a preset virus processing library, where the virus-related file includes a virus file and / or a file infected by a virus, and the preset virus processing library is established based on the LuaJIT language; in response to the target file being the virus-related file, obtaining the virus identifier corresponding to the virus-related file from the preset virus processing library; detecting whether there is a repair script bytecode corresponding to the virus identifier in the preset virus processing library according to the virus identifier; and processing the target file according to the detection result. The present invention can be used in virus detection and killing services.

The embodiment of the invention provides a virus processing method and device for a vehicle system based on a mobile terminal, and the method comprises the steps: carrying out the virus processing of the vehicle system based on the mobile terminal under the condition of keeping connection with a control terminal of a target vehicle, and when the access of a mobile storage device for the control terminal is detected, carrying out the virus processing of the vehicle system based on the mobile terminal; acquiring scanning information of a to-be-scanned file in the mobile storage device; comparing the scanning information with a current first virus database of the mobile terminal to obtain a target threat value of each to-be-scanned file; and threat information including the target threat value is sent to the control terminal, so that the control terminal carries out corresponding processing. According to the embodiment of the invention, the mobile terminal is used for scanning under the condition that the computing power of a vehicle system is not used, so that the operation of other applications of the vehicle is not influenced, and potential safety hazards caused by the operation are greatly reduced.

The invention discloses a virus processing method, device and system and a storage medium, and the method comprises the steps: comparing vehicle software mirror image data with a virus template library when the vehicle software mirror image data is received; when the comparison result is inconsistent, judging whether viruses exist in the vehicle software mirror image data or not; when the virus exists, an active confrontation mode is adopted to attack a source server of the virus so as to block a virus transmission source; when the virus is an unknown virus, acquiring feature information of the unknown virus; and updating a virus template library according to the feature information of the unknown virus. According to the scheme provided by the invention, when the virus is found, an active confrontation mode is adopted to attack the virus source server, so that the propagation path of the virus is effectively blocked, and the large-scale diffusion of the virus is prevented, thereby reducing the harm range of the virus and improving the network security.

A virus searching and killing method and system for distributed energy security data relates to the field of virus processing, and comprises the following steps: acquiring an original feature code of a virus, splitting the original feature code into N discontinuous and sequential fixed fragments Fi, calculating an initial offset Si of each fragment Fi relative to a first fragment F1, and constructing a virus feature database, according to the method, firstly, a data stream is divided into a plurality of data blocks Bi with the fixed size, scanning and matching association are conducted through a sliding window with the fixed size, and finally threshold judgment is conducted. Original virus feature codes are subjected to fragmentation processing, and the storage requirement of a virus feature database is lowered; secondly, sliding window scanning can ensure that any feature combination is covered, a matching event FPi is recorded instead of full data, and memory occupation is reduced; by comparing the absolute offset SBi with the expected position, the correct sequence of the fragments in the virus is ensured, the matching progress can be tracked in real time by a state machine, weights are accumulated only for the fragments with the correct sequence, and the detection credibility is improved.

The embodiment of the invention discloses a method and device for blocking an encryption behavior, a storage medium and electronic equipment. Inserting virtual access information corresponding to a bait file at a starting position of a file list of each directory of directory data information returned by the system aiming at the file traversal behavior; and if a first encryption behavior executed by the target process for the bait file based on the virtual access information is monitored, blocking the first encryption behavior, determining that the target process is a target virus process, and terminating the target process.

The invention provides a terminal virus processing method and system, a medium, equipment and a program product, and relates to the field of network security, and the method comprises the steps: obtaining a network connection behavior of a terminal; matching the network connection behavior of the terminal by using an intrusion index rule, and if a target network connection behavior hitting the intrusion index rule exists, refusing all access requests of the target network connection behavior; and starting a virus clearing strategy and a virus blocking strategy aiming at the target network connection behavior. According to the method and the device, repeated attack and residual of viruses can be effectively prevented, serious problems of system vulnerability, data leakage, system crash and the like possibly caused by the residual viruses are avoided, the resistance of the terminal to the viruses is enhanced, a safer, more reliable and more stable use environment is provided for a terminal user, and the user experience is improved. And the safety protection level of the terminal is obviously improved.