SYSTEM AND METHOD FOR DETERMINING THE FILE TRUST LEVEL Russian patent published in 2021 - IPC G06F21/57 G06F21/51 G06F21/56 

FIELD: computer security.

SUBSTANCE: according to the implementation variant, a method for determining the file trust level is used. The names of files located along the specified paths for a given share of user devices are selected. A group of files is formed of two files with stable names, which are the components of the same application. For each group, the developer is determined, and the file of the said group is signed using private developer key. For each group, the level of trust for all files in the group is determined based on the verdicts of third-party services assigned to the files of the said group, as well as on the verdicts of third-party services assigned to a file on users’ devices that does not belong to the said group and is signed with the private key of the dominant developer, or on the verdicts of third-party services assigned to files of another group of the said dominant developer, whose launch frequency exceeds the specified threshold.

EFFECT: technical result is improving the quality of classification of trusted software.

29 cl, 4 dwg