Patents Assigned to Zscaler, Inc.
  • Patent number: 11770319
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods implemented by a traceroute application implementing a Transmission Control Protocol (TCP) stack in a processing device include sending a plurality of TCP packets via a raw socket to perform a trace to a destination; receiving responses to the plurality of TCP packets; detecting the responses in the TCP stack and diverting the responses to the raw socket; and aggregating the responses by the traceroute application to determine details of a service path from the processing device to the destination.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: September 26, 2023
    Assignee: Zscaler, Inc.
    Inventors: Sandeep Kamath, Chenglong Zheng, Vladimir Stepanenko, Srikanth Devarajan
  • Patent number: 11765593
    Abstract: A Multi-Access Edge Compute (MEC) system includes a plurality of compute resources including one or more processors configured to implement services; wherein the services include any of edge services, routing functions, and hosted services; and wherein the services further include cloud-based security services implemented in the MEC in conjunction with a cloud-based security system that includes a plurality of nodes and offers multi-tenant cloud-based security services, and wherein the cloud-based security services implemented in the MEC are for subscribers of a service provider associated with the MEC.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: September 19, 2023
    Assignee: Zscaler, Inc.
    Inventors: Nathan Howe, Kenneth B. Urquhart
  • Patent number: 11758025
    Abstract: Techniques for using trace with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include obtaining policy information related to a trace; performing a plurality of traces, from a start point to an end point in a network, using the different protocols based on the policy information; evaluating which of the plurality of traces reach the end point, and evaluating any of average latency of the plurality of traces, average loss of the plurality of traces, and a number of hops found, for each of the plurality of traces that reach the end point; and selecting a protocol of the different protocols to use for the trace based on the evaluating. The different protocols include Internet Control Message Protocol (ICMP), Transmission Control Protocol (TCP), and User Datagram Protocol (UDP).
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: September 12, 2023
    Assignee: Zscaler, Inc.
    Inventors: Pankaj Chhabra, Sandeep Kamath
  • Patent number: 11755726
    Abstract: Systems and methods include obtaining a file associated with a user for processing; utilizing a combination of policy for the user and machine learning to determine whether to i) quarantine the file and scan the file in a sandbox, ii) allow the file to the user and scan the file in the sandbox, and iii) allow the file to the user without the scan; responsive to the quarantine of the file and the sandbox determining the file is malicious, blocking the file; and, responsive to the quarantine of the file and the sandbox determining the file is benign, allowing the file.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: September 12, 2023
    Assignee: Zscaler, Inc.
    Inventors: Changsha Ma, Rex Shang, Douglas A. Koch, Dianhuan Lin, Howie Xu, Bharath Kumar, Shashank Gupta, Parnit Sainion, Narinder Paul, Deepen Desai
  • Patent number: 11750405
    Abstract: A node configured as any of a proxy, a Secure Web Gateway, and a Secure Internet Gateway is configured to perform steps of establishing a connection with a user device having a user associated with a tenant; obtaining policy for the user; monitoring traffic between the user device and the Internet including snooping session keys for any encrypted traffic; analyzing the traffic based on the policy including utilizing the session keys on the encrypted traffic; and one of allowing, blocking, or limiting the traffic based on the analyzing.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: September 5, 2023
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Vijay Bulusu, Leslie McCutcheon
  • Patent number: 11722522
    Abstract: Cloud Security Posture Management (CSPM) systems and methods include, in a node in a cloud-based system, obtaining a plurality of security policies and one or more compliance frameworks for a tenant of a cloud provider where the tenant has a cloud application deployed with the cloud provider, wherein each security policy defines a configuration and an expected value, and wherein each compliance framework includes one or more of the security policies; obtaining configurations of the cloud application; identifying misconfigurations of the cloud application based on a comparison of the obtained configurations with the plurality of security policies; analyzing the misconfigurations to determine risks including prioritization of the risks based on their likelihood of exposure to security breaches; and causing remediation of the identified misconfigurations and the determined risks, wherein the cloud-based system performs the CSPM service in addition to one or more additional cloud services.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 8, 2023
    Assignee: Zscaler, Inc.
    Inventors: Gururaj Pandurangi, Pravin Kulkarni, Rahul Khengare, Unmesh Meshram, Santosh Kumar Abhayraj Yadav, Shraddha Agrawal, Ankit Rao, Himalay Kondekar, Girish Murlidhar Jaju
  • Patent number: 11716359
    Abstract: Mobile device security, device management, and policy enforcement are described in a cloud-based system where the “cloud” is used to pervasively enforce security and policy and perform device management regardless of device type, platform, location, etc. A method includes receiving one or more mobile profiles for one or more mobile devices each associated with a user from an enterprise; responsive to enrollment of a mobile device of the one or more mobile devices, communicating to the mobile device; determining an associated mobile profile of the one or more mobile profiles for the mobile device; and configuring the mobile device based on the associated mobile profile.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: August 1, 2023
    Assignee: Zscaler, Inc.
    Inventors: Amit Sinha, Narinder Paul, Srikanth Devarajan
  • Patent number: 11687651
    Abstract: Systems, methods and apparatus for malware detection to detect and stop the distribution of malware and other undesirable content before such content reaches computing systems. A Malware Detection Service (MDS) including a processor and memory storing computer program instructions that when executed cause the processor to receive one of content or a signature of a file, responsive to receiving a signature of a file, determine a status of the file as trusted, untrusted, or unknown for malware based on the signature, responsive to receiving content of a file, generate a signature of the file and scan the content to identify the status of the content as trusted or untrusted.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: June 27, 2023
    Assignee: Zscaler, Inc.
    Inventors: Kailash Kailash, Robert L. Voit, Jose Raphel
  • Patent number: 11683345
    Abstract: Systems and methods include obtaining telemetry from a plurality of security agents each operating on a device in a network, wherein the telemetry is collected locally related to datagram protocol packets; analyzing the telemetry to determine applications associated with the datagram protocol packets flowing in the network and virtual circuits between each of the applications; determining enforcement policies for each application that communicates with other applications over a datagram protocol; and providing the enforcement policies to the plurality of security agents for allowing and blocking communications associated with the datagram protocol.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: June 20, 2023
    Assignee: Zscaler, Inc.
    Inventor: Thomas E. Keiser, Jr.
  • Patent number: 11671433
    Abstract: A cloud-based security system includes a plurality of enforcement nodes connected to one another; a central authority connected to the plurality of enforcement nodes; and a Data Loss Prevention (DLP) service executed between the plurality of enforcement nodes, wherein the DLP service includes one or more DLP rules based on one or more DLP engines for a tenant, and wherein, for the DLP service, a first enforcement node is configured to monitor traffic of a user of the tenant, detect a DLP rule violation based on the one or more DLP rules, and forward DLP incident information to a second enforcement node, and the second enforcement node is configured to transmit the DLP incident information to a server for the tenant, including both DLP triggering content that cause the DLP rule violation and DLP scan metadata.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: June 6, 2023
    Assignee: Zscaler, Inc.
    Inventors: Narinder Paul, Arun Bhallamudi, James Tan, Frank Zhang, Pooja Deshmukh
  • Patent number: 11669779
    Abstract: Systems and methods include receiving a content item between a user device and a location on the Internet or an enterprise network; utilizing a trained machine learning ensemble model to determine whether the content item is malicious; responsive to the trained machine learning ensemble model determining the content item is malicious or determining the content item is benign but such determining is in a blind spot of the trained ensemble model, performing further processing on the content item; and, responsive to the trained machine learning ensemble model determining the content item is benign with such determination not in a blind spot of the trained machine learning ensemble model, allowing the content item. A blind spot is a location where the trained machine learning ensemble model has not seen any examples with a combination of features at the location or has examples with conflicting labels.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: June 6, 2023
    Assignee: Zscaler, Inc.
    Inventors: Dianhuan Lin, Rex Shang, Changsha Ma, Kevin Guo, Howie Xu
  • Patent number: 11671438
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include receiving a request, from a client, for a trace of the tunnel; causing the trace inside the tunnel; obtaining results of the trace inside the tunnel; and sending the results of the trace inside the tunnel to the client so that the client aggregates these details with details from one or more additional legs to provide an overall view of a service path between the client and a destination.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: June 6, 2023
    Assignee: Zscaler, Inc.
    Inventor: Srikanth Devarajan
  • Patent number: 11652797
    Abstract: Systems and methods, in a lightweight connector including a processor communicatively coupled to a network interface, include connecting to a cloud-based system, via the network interface; connecting to one or more of a file share and an application, via the network interface; and providing access to a user device to the one or more of the file share and the application via a stitched connection between the network interface and the user device through the cloud-based system. The systems and methods can further include receiving a query for discovery; and responding to the query based on the one or more of the file share and the application connected thereto.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 16, 2023
    Assignee: Zscaler, Inc.
    Inventors: John A. Chanak, Patrick Foxhoven, William Fehring, Denzil Wessels, Kunal Shah, Subramanian Srinivasan
  • Patent number: 11650965
    Abstract: Systems and methods include obtaining statistics based on monitoring in a cloud-based system for a given time period; and, responsive to determining an arrangement of counters for N counters, storing each of M counters for the given time period as a plurality of records with each record including a record type, a possible offset to a next record in terms of a counter identifier (ID), and a counter value, wherein N and M are integers and M<<N, and wherein the arrangement is determined such that most frequently used counters occupy lower counter IDs. The systems and methods can further include updating the arrangement of the counters for the N counters, to perform an optimization such that the most frequently used counters occupy lower counter IDs.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: May 16, 2023
    Assignee: Zscaler, Inc.
    Inventors: Raman Madaan, Kumar Gaurav, Chakkaravarthy Periyasamy Balaiah, Kailash Kailash
  • Patent number: 11647055
    Abstract: Systems and methods include providing functionality for the user device while operating in background on the user device including providing secure connectivity with a cloud-based system over a network; continuously collecting packets intercepted by the enterprise application over a time interval, wherein the collected packets are collected over the time interval; and responsive to an issue with functionality of the enterprise application, transmitting the collected packets to a back end server for troubleshooting of the issue. The time interval is a set amount of time, and each collected packet is deleted at the expiration of the time interval.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: May 9, 2023
    Assignee: Zscaler, Inc.
    Inventors: Rohit Goyal, Rishabh Gupta
  • Patent number: 11647067
    Abstract: Techniques for using web probes for monitoring user experience including use of caching to prevent a surge of web probes on destination servers and for detecting web probe traffic through a proxy including where the traffic is encrypted. A method implemented by a proxy includes receiving a response to a first web probe to a destination server; caching data associated with the response to the first web probe in a cache; receiving a request for a second web probe to the destination server; and serving a response to the second web probe utilizing the data in the cache in lieu of forwarding the second web probe to the destination server.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: May 9, 2023
    Assignee: Zscaler, Inc.
    Inventors: Chenglong Zheng, Srikanth Devarajan, Vikas Mahajan, Sandeep Kamath Voderbet
  • Patent number: 11637910
    Abstract: Systems and methods include receiving a record associated with an incident that was detected by the CASB system in a Software-as-a-Service (SaaS) application; determining a hash based on a plurality of levels for the record; determining if the record exists in a data store based on the hash, and if the record exists, deleting an old record; and inserting the record in the data store based on the hash, wherein the data store is maintained in-memory and includes records at leaf nodes in a multi-level hash based on the plurality of levels.
    Type: Grant
    Filed: October 2, 2020
    Date of Patent: April 25, 2023
    Assignee: Zscaler, Inc.
    Inventors: Abhishek Bathla, Kumar Gaurav, Raman Madaan, Chakkaravarthy Periyasamy Balaiah, Shweta Gupta
  • Patent number: 11637766
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include requesting a trace to a destination with a signature inserted into a trace packet; receiving a response to the trace packet; when the response does not include tunnel info, providing details in the response to a service where the details include parameters associated with a service path between the client and the destination; and, when the response includes tunnel info, segmenting the service path into a plurality of legs, causing a trace for each of the plurality of legs, and aggregating details for each of the plurality of legs based on the causing.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: April 25, 2023
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Chenglong Zheng, Ajit Singh, Sandeep Kamath, Chakkaravarthy Periyasamy Balaiah, Vladimir Stepanenko
  • Patent number: 11632401
    Abstract: A technique for microsegmentation includes receiving information related to hosts and applications operating in a network where the information was obtained based on a survey of the network; identifying a plurality of microsegments utilizing the information, each microsegment includes a set of hosts similar to one another; for each of the plurality of microsegments, identifying security policies that control access to hosts in each microsegment; and providing the plurality of microsegments and corresponding security policies for approval thereof.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: April 18, 2023
    Assignee: Zscaler, Inc.
    Inventors: Peter Smith, Aparna Ayikkara, Omar Baba, Daniel Einspanjer, Anthony Gelsomini, Thomas C. Hickman, Peter Kahn, Thomas Evan Keiser, Jr., Andriy Kochura, Nikitha Koppu, Scott Laplante, Xing Li, Raymond Brian Liu, Sean Lutner, Michael J. Melson, Peter Nahas, John O'Neil, Herman Parfenov, Joseph Riopel, Suji Suresh, Harry Sverdlove
  • Patent number: 11627148
    Abstract: Systems and methods include obtaining data from a log system storing historical transactions monitored by a security system; creating one or more mock transactions based on the data; and analyzing the one or more mock transactions with a signature pattern matching engine having updates provided therein subsequent to a time of the historical transactions. The one or more mock transactions can have a header based on the data from corresponding historical transactions. The systems and methods can include performing a content scan in the one or more mock transactions based on the signature pattern matching engine having the updates, or determining malicious activity in the one or more mock transactions based on the signature pattern matching engine having the updates to determine missed matches in the corresponding historical transactions.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 11, 2023
    Assignee: Zscaler, Inc.
    Inventor: Deepen Desai