Malware detection using a digital certificate
AssigneeMcAfee, Inc.
InventorsJoel R. Spurlock, Ramnath Venugopalan
Life of this patent
Estimating the term…
Abstract
Particular embodiments described herein provide for an electronic device that can be configured to analyze data related to a digital certificate and assign a reputation to the digital certificate, where the reputation includes an indication if the data is proper. The analysis of the data can include determining if code signing for the digital certificate matches binary code for the digital certificate, if the digital certificate has been grafted to the data by modifying a portable executable file header, or the digital certificate is the same as another trusted digital certificate associated with different data.
Claims17
At least one non-transitory machine readable medium comprising one or more instructions that when executed by a processor, cause the processor to:
- analyze data related to a digital certificate associated with a file to determine whether the data is proper or improper, wherein the analysis of the data includes determining the digital certificate is the same as another trusted digital certificate associated with different data;
- classify the digital certificate as proper based on a determination that the data related to the digital certificate is proper or as improper based on a determination that the data related to the digital certificate is improper;
- determine, based on the digital certificate being classified as proper, whether the digital certificate is trusted or untrusted;
- and
- classify, based on a determination that the digital certificate is trusted, the file as trusted.
An apparatus comprising:
- a memory element operable to store instructions;
- and
- a processor operable to execute the instructions, such that the apparatus is configured to:
- identify a file that includes a digital certificate and data related to the digital certificate;
- analyze the data related to the digital certificate to determine whether the data is proper or improper, wherein the analysis of the data includes determining the digital certificate is the same as another trusted digital certificate associated with different data;
- classify the digital certificate as proper based on a determination that the data related to the digital certificate is proper or as improper based on a determination that the data related to the digital certificate is improper;
- determine, based on the digital certificate being classified as proper, whether the digital certificate is trusted or untrusted;
- and
- classify, based on a determination that the digital certificate is trusted, the file as trusted.
A method comprising:
- analyzing data related to a digital certificate associated with a file to determine whether the data is proper or improper, wherein the analysis of the data includes determining the digital certificate is the same as another trusted digital certificate associated with different data;
- classifying the digital certificate as proper based on a determination that the data related to the digital certificate is proper or as improper based on a determination that the data related to the digital certificate is improper:
- determining, based on the digital certificate being classified as proper, whether the digital certificate is trusted or untrusted;
- and
- classifying, based on a determination that the digital certificate is trusted, the file as trusted.
Dependencies are inferred from the claim text.