The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 2018
Filed:
Jul. 16, 2015
Leviathan, Inc., Seattle, WA (US);
Falcon Momot, Seattle, WA (US);
Leviathan Security Group, Inc., Seattle, WA (US);
Abstract
Systems, methods and media are shown for detecting a stack pivot programming exploit that involve extracting return addresses from a call stack from a snapshot of a running program and, for each extracted return address, identifying a stack frame and following frame from stack pointer information, checking whether the stack is consistent with the type of stack generated by the operating system and architecture conventions, and alerting that a stack pivot is likely if an anomaly in stack layout is found. Some examples involve determining whether the stack frame and following frame follow consistently in one of ascending or descending addresses. Some examples involve, given a consistent directional polarity and metadata about the directional polarity of the stack specified by one of the microarchitecture, operating system, software, or other configuration, determining whether the observed directional polarity corresponds to the expected directional polarity.