Accelerate your SSE journey. Join Netskope at RSA.

  • Security Service Edge Products

    Protect against advanced and cloud-enabled threats and safeguard data across all vectors.

  • Borderless SD-WAN

    Confidently provide secure, high-performance access to every remote user, device, site, and cloud.

  • Platform

    Unrivaled visibility and real-time data and threat protection on the world's largest security private cloud.

Netskope Named a Leader in the 2022 Gartner Magic Quadrant™ for SSE Report

Get the report Go to Products Overview
Netskope gartner mq 2022 sse leader
Gartner® Quick Answer: How Does Netskope’s Acquisition of Infiot Impact SD-WAN, SASE, and SSE Projects?

Get the report
Gartner quick answer
Netskope delivers a modern cloud security stack, with unified capabilities for data and threat protection, plus secure private access.

Explore our platform
Birds eye view metropolitan city
Make the move to market-leading cloud security services with minimal latency and high reliability.

Learn more
Lighted highway through mountainside switchbacks
Prevent threats that often evade other security solutions using a single-pass SSE framework.

Learn more
Lighting storm over metropolitan area
Zero trust solutions for SSE and SASE deployments

Learn more
Boat driving through open sea
Netskope enables a safe, cloud-smart, and fast journey to adopt cloud services, apps, and public cloud infrastructure.

Learn more
Wind turbines along cliffside
  • Our Customers

    Netskope serves more than 2,000 customers worldwide including more than 25 of the Fortune 100

  • Customer Solutions

    We are here for you and with you every step of the way, ensuring your success with Netskope.

  • Training and Certification

    Netskope training will help you become a cloud security expert.

We help our customers to be Ready for Anything

See our Customers
Woman smiling with glasses looking out window
Netskope’s talented and experienced Professional Services team provides a prescriptive approach to your successful implementation.

Learn more
Netskope Professional Services
Secure your digital transformation journey and make the most of your cloud, web, and private applications with Netskope training.

Learn more
Group of young professionals working
  • Resources

    Learn more about how Netskope can help you secure your journey to the cloud.

  • Blog

    Learn how Netskope enables security and networking transformation through security service edge (SSE).

  • Events & Workshops

    Stay ahead of the latest security trends and connect with your peers.

  • Security Defined

    Everything you need to know in our cybersecurity encyclopedia.

Security Visionaries Podcast

Episode 10: Building Security Relationships Through Transparency
In this episode, Mike and Andreas discuss aligning with works councils, forging business relationships through transparency, and embedding security into value streams.

Play the podcast
Building Security Relationships Through Transparency
Read the latest on how Netskope can enable the Zero Trust and SASE journey through security service edge (SSE) capabilities.

Read the blog
Sunrise and cloudy sky
Netskope at RSA

Join Netskope at RSA Conference this year and be part of the real conversations on SASE and Zero Trust. Stop by our booth in South Hall, chat with an expert, register for our speaking sessions, and unwind by joining us at one of our events!

Learn more
RSA logo
What is Security Service Edge?

Explore the security side of SASE, the future of network and protection in the cloud.

Learn more
Four-way roundabout
  • Company

    We help you stay ahead of cloud, data, and network security challenges.

  • Why Netskope

    Cloud transformation and work from anywhere have changed how security needs to work.

  • Leadership

    Our leadership team is fiercely committed to doing everything it takes to make our customers successful.

  • Partners

    We partner with security leaders to help you secure your journey to the cloud.

Netskope enables the future of work.

Find out more
Curvy road through wooded area
Netskope is redefining cloud, data, and network security to help organizations apply Zero Trust principles to protect data.

Learn more
Switchback road atop a cliffside
Thinkers, builders, dreamers, innovators. Together, we deliver cutting-edge cloud security solutions to help our customers protect their data and people.

Meet our team
Group of hikers scaling a snowy mountain
Netskope’s partner-centric go-to-market strategy enables our partners to maximize their growth and profitability while transforming enterprise security.

Learn more
Group of diverse young professionals smiling

Virlock’s resurgence poses bigger threat to file syncing over the cloud

Jan 30 2017
Tags
CASB
Cloud Best Practices
Cloud Fanout
Cloud Malware
Netskope Threat Protection
Netskope Threat Research Labs
Ransomware
Tools and Tips
Virlock
Vulnerability Advisory

A new variant of the Virlock family of wormed ransomware has been detected actively propagating in the wild. Virlock not only encrypts every file in a file system, but infects them simultaneously. This converts each file into a potential infection root for branching out once it is shared over the network or through physical media. Netskope Threat Research Labs published a detailed blog on how the Virlock infection works in two harmful ways: by encapsulating the capabilities of both ransomware and a worm.

Such infection vectors possess a bigger threat to an enterprise environment where cloud storage services are used for collaboration. Any infected user within the collaboration group can transfer the infection to other machines once the service syncs the file across all of the users in the group. This gives rise to the classic malware fan-out effect wherein cloud services inadvertently amplify the threat landscape.

Netskope Threat Protection blocks all known variants of Virlock with the detection name of PE.Gn.5 and PE.Gn.8. The Virlock file infectors can be blocked from syncing to the cloud, both from the original infected user and also from the cases where Virlock might be syncing from the cloud to a new user in the same collaboration group, as shown in Figure 1.

Figure 1: Netskope Threat Protection preventing Virlock infection fan-out.

Netskope recommends the following best practices to enterprises in order to protect from ransomware threats:

  1. Detect and remediate all threats at rest in sanctioned cloud services using a threat-aware cloud access security broker (CASB) like Netskope.
  2. Detect and remediate all threats being downloaded from unsanctioned cloud services using a threat-aware cloud access security broker (CASB) like Netskope.
  3. Regularly back up and turn on versioning for critical content in cloud services.
  4. On managed devices, administrators should enable the option to view known file extensions.
  5. Administrators should advise their users to avoid executing any files with dual extensions unless they are very sure that the files are benign.
  6. Administrators should warn users to avoid opening untrusted attachments, regardless of those attachments’ extensions or file names
  7. Enterprise users should always keep their systems and antivirus updated with the latest releases and patches.

The post Virlock’s resurgence poses bigger threat to file syncing over the cloud appeared first on Netskope.