Heuristic method of code analysis

Details Heuristic method of code analysis Heuristic method of code analysis

G - Physics

06

F

G06F 21/00 (2006.01)

Patent

CA 2735545

A method of detecting malware at a computing device. The method includes examining a software program comprising a sequence of program instructions, determining whether each instruction in the sequence meets any of a group of suspicion criteria, assigning a instruction-level score to each instruction that meets any of the suspicion criteria, summing the instruction- level scores for each instruction to yield a program-level score, determining whether the program-level score exceeds a threshold, and, if the program-level score exceeds a threshold, developing a report indicating a malware detection result.

Linvention concerne un procédé de détection de logiciel malveillant dans un dispositif informatique. Le procédé consiste à examiner un logiciel comprenant une séquence dinstructions de programme, déterminer si chaque instruction dans la séquence satisfait lun quelconque des critères dun groupe de critères de suspicion, attribuer une note de niveau dinstruction à chaque instruction qui satisfait lun quelconque des critères de suspicion, additionner les notes de niveau dinstruction pour chaque instruction pour obtenir une note de niveau de programme, déterminer si la note de niveau de programme dépasse un seuil et, si la note de niveau de programme dépasse un seuil, développer un rapport indiquant un résultat de détection de logiciel malveillant.

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