Emulating mixed-code programs using a virtual machine instance
US10592263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Apr 19, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/566
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The subject disclosure is directed towards a technology for efficiently emulating program code that is protected by one or more various code virtualization techniques to detect the presence of malware. An emulation engine emulates a program containing a mix of native code, custom (e.g., virtualized obfuscated) code, and at least one emulator and/or interpreter that understands the custom code, by building a custom emulation component that is built by detecting and analyzing the internal emulator or interpreter. The custom emulation component may access a translation table built from the analysis, and also may simplify a plurality of instructions in the program into a lesser number of instructions in an intermediate language used for emulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.