Detecting heap-spray in memory images
US9804800B2 · kind B2 · utility
2Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2015 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Feb 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer is protected from heap spray attacks by identifying blocks in a heap memory, associating the blocks in buckets according to the block sizes, selecting one of the buckets, and choosing a first block and a second block from the selected bucket. The method is further carried out by making a content comparison of the first block with the second block, accumulating a positive result when the comparison meets a predetermined criterion of similarity, and reporting a heap spray detection when accumulated positive results exceed a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.