Abstract: A method, system, and computer program product provides on-access anti-virus scanning of data files, which can be performed without introducing significant performance degradation and provides delayed file write operation scanning upon interception of a file write operation. A method of detecting a malware comprises the steps of intercepting a file access operation of the a process to a file, in response to the intercepting, waiting a time interval between the intercepting and scanning the file for a malware, and scanning the file for the malware, after waiting the time interval, wherein the process is associated with an application program and wherein the file access operation is a file write operation.

Abstract: A virus scanner is provided in which a pool of pre-processor threads and a queue are interposed between the event filter and the pool of scanner threads. The pre-processor threads perform operations that can be completed quickly to determine whether an object of a scan request needs to be scanned. The pre-processor threads gather characteristics about the scan requests and place them in the queue in a priority order based on those characteristics. The scanner threads select a scan request from the queue based on the priority order. Alternatively, the scan request is selected based on the scan request's characteristics as compared to the characteristics of the scan requests whose objects are currently being scanned by other scanner threads in the pool.

Abstract: A method, system, and computer program product provides on-access anti-virus scanning of data files, which can be performed without introducing significant performance degradation and provides delayed file write operation scanning upon interception of a file write operation. A method of detecting a malware comprises the steps of intercepting a file access operation of the a process to a file, in response to the intercepting, waiting a time interval between the intercepting and scanning the file for a malware, and scanning the file for the malware, after waiting the time interval, wherein the process is associated with an application program and wherein the file access operation is a file write operation.

Abstract: A method, system, and computer program product provides on-access anti-virus scanning of data files, which can be performed without introducing significant performance degradation and provides delayed file write operation scanning upon interception of a file write operation. A method of detecting a malware comprises the steps of monitoring file access operations of a process, intercepting a file access operation of the process to a file, waiting a time interval, and scanning the file for a malware.

Abstract: A method, system, and computer program product provides on-access anti-virus scanning of data files, which can be performed without introducing significant performance degradation and provides delayed file write operation scanning upon interception of a file write operation. A method of detecting a malware comprises the steps of monitoring file access operations of a process, intercepting a file access operation of the process to a file, waiting a time interval, and scanning the file for a malware.

Abstract: A method, system, and computer program product for detecting a malware that provides the capability to detect malwares included in compressed files or which require emulation. A method of detecting a malware comprises the steps of scanning a process that has been loaded for execution for a malware, allowing the process to execute, if no malware is found, interrupting execution of the process, and scanning the process for a malware.