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.

Date of Patent:
Aug. 11, 2020

Filed:

Dec. 28, 2017
Applicant:

Crowdstrike, Inc., Irvine, CA (US);

Inventors:

David F. Diehl, Minneapolis, MN (US);

Milos Petrbok, Redmond, WA (US);

Colin Christopher McCambridge, Minneapolis, MN (US);

Aaron Putnam, Irvine, CA (US);

Assignee:

CrowdStrike, Inc., Irvine, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/56 (2013.01); G06F 21/55 (2013.01); G06F 21/53 (2013.01); H04L 9/32 (2006.01); G06F 21/60 (2013.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
G06F 21/554 (2013.01); G06F 21/53 (2013.01); G06F 21/566 (2013.01); G06F 21/567 (2013.01); G06F 21/606 (2013.01); H04L 9/3268 (2013.01); G06F 2221/034 (2013.01); G06F 2221/2149 (2013.01);
Abstract

Some examples detect malicious activity on a computing device. A processor in kernel mode detects an event on the computing device. The processor provides a validation request on a kernel-level bus. A bidirectional bridge component transmits the request to a user-level bus. The processor in user mode determines that the event is associated with malicious activity and provides a validation response on the user-level bus. The bridge component transmits the validation response to the kernel-level bus. In some examples, the processor in user mode receives security-relevant information from a system service of the computing device, and analyzes the event based at least in part on the security-relevant information. In some examples, the processor in user mode receives a security query, queries the kernel mode via the bridge component, and responds to the security query indicating that the data stream is associated with malware.


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