METHOD OF GENERATING INFORMATION REQUEST ABOUT FILE DURING ANTIVIRUS CHECKING IN ORDER TO EXCLUDE FALSE OPERATION Russian patent published in 2019 - IPC G06F21/00 

FIELD: information technology.

SUBSTANCE: invention relates to computer security means. Method of generating a request for information on a file to verify the absence of a false decision when determining a file as safe during antivirus checking comprises synchronously selecting a portion of the file and counting the first hash sum of the file from the selected portion of the file on the user's computer, synchronously searching for the first hash sum of the file in the verdict cache, making a decision that the first hash sum of the file is not in the data cache, accessing the file and asynchronously counting the second hash sum of the file to exclude the false decision, where second hash sum of file is counted based on whole file, request to remote server and waiting for response, where the request contains the second hash sum of the file, depending on the received response from the remote server, determining the presence of a false decision and taking a final decision on the file severity.

EFFECT: shorter time for delaying file launch when performing check for false operations during antivirus scanning of a file.

9 cl, 5 dwg