Patents Assigned to Zscaler, Inc.
  • Patent number: 11429589
    Abstract: Systems and methods include obtaining a file to be checked for Data Loss Prevention (DLP); determining a cryptographic hash of the file and comparing the cryptographic hash to corresponding cryptographic hashes of indexed files; responsive to a match between the cryptographic hash and one of the corresponding cryptographic hashes, determining a DLP match and performing an action based thereon; responsive to no match, extracting text from the file and creating an ordered sequence of hashes of variable length chunks of the extracted text; and determining the DLP match with one of the indexed files based on comparing the ordered sequence of hashes with corresponding ordered sequence of hashes of the indexed files.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: August 30, 2022
    Assignee: Zscaler, Inc.
    Inventors: Narinder Paul, Arun Bhallamudi, Balakrishna Bayar, James Tan
  • Patent number: 11425015
    Abstract: Techniques for using traceroute with tunnels and cloud-based systems for determining measures of network performance are presented. Systems and methods include performing a plurality of traces between two nodes in a service path; obtaining latency measurements for each of the plurality of traces for each of one or more hops between the two nodes; and determining average latency between each of the one or more hops based on the latency measurements, adjusted average latency for each hop, and differential average latency for each hop.
    Type: Grant
    Filed: January 14, 2021
    Date of Patent: August 23, 2022
    Assignee: Zscaler, Inc.
    Inventors: Pankaj Chhabra, Sandeep Kamath
  • Patent number: 11425097
    Abstract: Systems and methods include receiving a request, in a cloud system from a user device, to access an application, wherein the application is in one of a public cloud, a private cloud, and an enterprise network, and wherein the user device is remote over the Internet; determining if the user device is permitted to access the application; if the user device is not permitted to access the application, notifying the user device the application does not exist; and if the user device is permitted to access the application, stitching together connections between the cloud system, the application, and the user device to provide access to the application.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: August 23, 2022
    Assignee: Zscaler, Inc.
    Inventors: Patrick Foxhoven, John A. Chanak, William Fehring, Denzil Wessels, Purvi Desai, Manoj Apte, Sudhindra P. Herle
  • Patent number: 11412001
    Abstract: Embodiments of the present invention generate network communication policies by applying machine learning to existing network communications, and without using information that labels such communications as healthy or unhealthy. The resulting policies may be used to validate communication between applications (or services) over a network.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: August 9, 2022
    Assignee: Zscaler, Inc.
    Inventor: John O'Neil
  • Patent number: 11394563
    Abstract: Systems and methods include, in a node operating as a snooping proxy, monitoring traffic between a user device and the Internet; detecting and monitoring a handshake between the user device and an endpoint for determining keys associated with encryption between the user device and the endpoint; monitoring encrypted traffic between the user device and the endpoint subsequent to the handshake based on the keys; and performing one or more security functions on the encrypted traffic based on the monitoring. The node can be part of a cloud-based security system and configured inline between the user device and the endpoint.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: July 19, 2022
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Vijay Bulusu, Leslie McCutcheon
  • Patent number: 11388177
    Abstract: Systems and methods for security and control of Internet of Things (IOT) and ZeroConf devices using cloud services. The present disclosure uses an application that runs on a user device in a promiscuous mode to look for potentially vulnerable and compromised machines on the local network. Specifically, the user device can fingerprint ZeroConf and IOT networks based on their static and dynamic behavior. The application discovers all hosts on the network and uses a cloud service such as via a cloud-based system to detect potentially malicious IOTs with known vulnerabilities. Based on an enterprise policy or user's preferences, the solution can alert if any IOT device tries to communicate with the user's device or if the user's device itself broadcasts services running on the device such as screen sharing/file sharing.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 12, 2022
    Assignee: Zscaler, Inc.
    Inventor: Abhinav Bansal
  • Patent number: 11381446
    Abstract: Systems and methods include obtaining network communication information about hosts in a network and applications executed on the hosts; automatically generating one or more microsegments in the network based on analysis of the obtained network communication information, wherein each microsegment of the one or more microsegments is a grouping of resources including the hosts and the applications executed on the hosts that have rules for network communication; automatically generating a meaningful name for the one or more microsegments based on a plurality of techniques applied to information associated with the hosts; and displaying the automatically generated one or more microsegments and the corresponding automatically generated meaningful name.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 5, 2022
    Assignee: Zscaler, Inc.
    Inventors: John O'Neil, Peter Smith
  • Patent number: 11368496
    Abstract: A system validates the establishment and/or continuation of a connection between two applications over a network. The system uses network application security rules to allow or disallow connections between the two applications. Those rules include definitions of the source and destination applications to which the rules apply. The system automatically updates the application definitions over time to encompass new versions of the applications covered by the security rules, but without encompassing other applications. The system is then capable of applying the updated rules both to the original applications and to the updated versions of those applications. This process enables the security rules to maintain security over time in a way that is consistent with the original intent of the rules even as applications on the network evolve.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: June 21, 2022
    Assignee: Zscaler, Inc.
    Inventors: Peter Nahas, Peter Smith, Harry Sverdlove, John O'Neil, Scott Laplante, Andriy Kochura
  • Patent number: 11368490
    Abstract: A distributed security system includes a plurality of content processing nodes that are located external to a network edge of an enterprise and located external from one of a computer device and a mobile device associated with a user, and a content processing node is configured to monitor a content item that is sent from or requested by the external system; classify the content item via a plurality of data inspection engines that utilize policy data and threat data; and one of distribute the content item, preclude distribution of the content item, allow distribution of the content item after a cleaning process, or perform threat detection on the content item, based on classification by the plurality of data inspection engines; and an authority node communicatively coupled to the plurality of content processing nodes and configured to provide the policy data and the threat data for threat classification.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: June 21, 2022
    Assignee: Zscaler, Inc.
    Inventors: Kailash Kailash, Shashidhara Mysore Nanjundaswamy, Amarnath Mullick, Jose Kolenchery Rappel
  • Patent number: 11363022
    Abstract: Systems and methods implemented by an application executed on a user device for service discovery and connectivity include, responsive to joining a new network, performing a Dynamic Host Configuration Protocol (DHCP) operation to obtain network configuration parameters; receiving a DHCP message in response with the network configuration parameters; via an application executed on the user device for service discovery and connectivity analyzing data in the DHCP message to determine one or more forwarding profiles on the new network, wherein the one or more forwarding profiles are based on a location or trust of the new network; and automatically installing the determined one or more forwarding profiles.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: June 14, 2022
    Assignee: Zscaler, Inc.
    Inventors: Sreedhar Pampati, David Creedy, Vikas Mahajan
  • Patent number: 11349880
    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: July 14, 2021
    Date of Patent: May 31, 2022
    Assignee: Zscaler, Inc.
    Inventors: Rohit Goyal, Rishabh Gupta
  • Patent number: 11347847
    Abstract: Systems, methods and apparatus for malware detection detect and stop the distribution of malware and other undesirable content before such content reaches computing systems. A cloud-based malware detection method includes receiving a signature from a computer, wherein the signature which identifies a file and the signature is smaller in size than the file; determining whether the file is trusted, untrusted, or unknown for malware based on the signature; and transmitting whether the file is trusted, untrusted, or unknown for malware to the computer based on the determining, wherein the computer is precluded from distribution of the file responsive to the file being untrusted.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: May 31, 2022
    Assignee: Zscaler, Inc.
    Inventors: Kailash Kailash, Robert L. Voit, Jose Raphel
  • Patent number: 11341242
    Abstract: Disclosed is a computer implemented method for malware detection that analyses a file on a per packet basis. The method receives a packet of one or more packets associated a file, and converting a binary content associated with the packet into a digital representation and tokenizing plain text content associated with the packet. The method extracts one or more n-gram features, an entropy feature, and a domain feature from the converted content of the packet and applies a trained machine learning model to the one or more features extracted from the packet. The output of the machine learning method is a probability of maliciousness associated with the received packet. If the probability of maliciousness is above a threshold value, the method determines that the file associated with the received packet is malicious.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: May 24, 2022
    Assignee: Zscaler, Inc.
    Inventors: Huihsin Tseng, Hao Xu, Jian L. Zhen
  • Patent number: 11329905
    Abstract: Systems and methods include connecting to and authenticating a set of user devices of a plurality of user devices; determining an election of a subset of user devices of the set of user devices, wherein the election determines which user devices perform metric collection; providing any of policy and configuration to the plurality of user devices including election information; and receiving metrics based on measurements at the subset of user devices of user devices according to corresponding policy and configuration.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: May 10, 2022
    Assignee: Zscaler, Inc.
    Inventors: Sushil Pangeni, Srikanth Devarajan, Ajit Singh, Sandeep Kamath, Chenglong Zheng, Chakkaravarthy Periyasamy Balaiah
  • Patent number: 11297058
    Abstract: Systems and methods include, in a cloud node, receiving Mobile Device Management (MDM) data from a central authority, wherein the MDM data includes policy metadata specifying MDM functions for mobile devices associated with users of an enterprise; communicating to an application on a mobile device associated with a user, via a tunnel, wherein the application is configured for service discovery and connectivity; and providing the MDM data to the mobile device associated with the user via the tunnel.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: April 5, 2022
    Assignee: Zscaler, Inc.
    Inventors: Ajit Singh, Vivek Raman, Tejus Gangadharappa
  • Patent number: 11290482
    Abstract: A mobile application notification system that includes a cloud node including a subscription service and a publication service, each executed on the cloud node, wherein the subscription service is configured to manage a plurality of users associated with a tenant of multiple tenants, each of the plurality of users have a corresponding user device that executes a monitoring application thereon, wherein management via the subscription service includes subscribing each of the plurality of users and configuring the tenant and associated messages, and wherein the publication service is configured to communicate with the corresponding user device of the plurality of users and to communication to a plurality of publisher threads, for exchanging messages therebetween, based on the subscribing and the configuring, and wherein at least two corresponding user device of the plurality of users utilize a different operating system and platform from one another.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 29, 2022
    Assignee: Zscaler, Inc.
    Inventors: Jasbir Singh Kaushal, Sichao Zhang, Varun Singh, Muralidharan Manickam, Priyanka Pani
  • Patent number: 11277383
    Abstract: Cloud-based Intrusion Prevention Systems (IPS) include receiving traffic associated with a user of a plurality of users, wherein each user is associated with a customer of a plurality of customers for a cloud-based security system, and wherein the traffic is between the user and the Internet; analyzing the traffic based on a set of signatures including stream-based signatures and security patterns; blocking the traffic responsive to a match of a signature of the set of signatures; and performing one or more of providing an alert based on the blocking and updating a log based on the blocking.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: March 15, 2022
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Sushil Pangeni, Vladimir Stepanenko, Ravinder Verma, Naresh kumar Povlavaram Munirathnam
  • Patent number: 11228519
    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 to perform a reverse trace; requesting a trace to an endpoint that is one of an egress router and a tunnel client, wherein there is a tunnel between i) the destination and ii) the one of the egress router and the tunnel client; receiving a response to the trace; and sending details associated with the response 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 the destination.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: January 18, 2022
    Assignee: Zscaler, Inc.
    Inventors: Srikanth Devarajan, Chenglong Zheng, Sandeep Kamath, Chakkaravarthy Periyasamy Balaiah, Vladimir Stepanenko, Vikas Mahajan, Pankaj Chhabra
  • Patent number: 11218427
    Abstract: Systems and methods include determining log data for a time period at a plurality of senders, wherein each sender is a node in the cloud-based system, and the log data is associated with one or more cloud services; providing the log data to one or more storage clusters, via one or more distributors, for the time period; responsive to all of the plurality of senders performing the providing, moving to a next time period and repeating the determining and the providing; detecting a given sender is a faulty data source or a slow data source; and moving the given sender to a deferred processing list where the given sender does not hold up the moving to the next time period.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: January 4, 2022
    Assignee: Zscaler, Inc.
    Inventors: Shweta Gupta, Abhishek Bathla, Kumar Gaurav, Chakkaravarthy Periyasamy Balaiah
  • Patent number: 11212183
    Abstract: Briefly, embodiments, such as methods and/or systems for network device identification, for example, are described.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: December 28, 2021
    Assignee: Zscaler, Inc.
    Inventors: Scott Andrew Hankins, Thomas James Geisler, III