Wednesday, 23 September 2020

Why SOAR Is the Future of Your IT Security

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The threat landscape evolves constantly, with new and increasingly sophisticated cyberattacks launching with growing frequency across network, cloud, and software-as-a-service environments.

As threats continue to stack up against organizations, IT teams face the challenge of managing heterogeneous end-user device environments composed of various network-connected devices, operating systems, and applications. They must ensure that consistent, organizationally-sanctioned controls are applied across these environments.

While this is achievable with the right security expertise, there is also a global cybersecurity skills shortage. In fact, 3.5 million cybersecurity positions are expected to remain unfulfilled by 2021.

These challenges are not insurmountable. They can be conquered with the security operations and incident response approach called SOAR.

What is SOAR?

SOAR refers to a solution stack of compatible software that allows organizations to orchestrate and automate different parts of security management and operations to improve the accuracy, consistency, and efficiency of security processes and workflows with automated responses to threats.

How does SOAR work?

Security orchestration

The first component of SOAR, security orchestration, involves leveraging the different, compatible products for use within a solution stack to orchestrate the management and operations activities through standardized workflows. These security solutions automatically aggregate data from multiple sources, add context to that data to identify potential weaknesses, and use risk modeling scenarios to enable automated threat detection.  Recognizing this, more and more organizations are prioritizing the need for effective integration between security technologies to enable rapid threat detection and response.

Security automation

The second component is security automation, which involves automating many of the repetitive actions involved in the threat detection process.

Traditionally, security analysts within an organization would handle threat alerts manually, usually multi-tasking to size up alerts from numerous point solutions. This increases the likelihood of human error, inconsistent threat response, and high severity threats being overlooked.

SOAR, on the other hand, automates gathering enrichment and intelligence data on an event, can perform common investigative steps on behalf of the analyst to help triage events, and consistently delivers on the orchestration and response of the incident response lifecycle.

Security response

The third component, security response, involves triage, containment, and eradication of threats.

Response methods depend on the type and scope of the threat. Some threat responses can be automated for faster results, such as quarantining files, blocking file hashes across the organization, isolating a host or disabling access to compromised accounts.

However, sophisticated cyber-attacks require sophisticated responses. This is where security playbooks come in.

With Cisco Managed Detection and Response (MDR), automation is supported by defined investigation and response playbooks, containing overviews of known threat scenarios and best practices for responding to different types of threats. The role of automation is to rapidly execute these playbooks.

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What does a threat detection and response process look like with SOAR?

Let’s start with an example based on AMP for Endpoints identifying a file as potentially malicious. SOAR would be able to begin the investigation process, start answering questions, and performing tasks automatically such as:

◉ Was the file quarantined?
◉ Was the file executed?
◉ Where else has this file been seen in the network?
◉ Detonate the file in a Cisco Threat Grid sandboxing environment
◉ Investigate using available context related to connection, file, and source at relevant technologies, such as Umbrella and Stealthwatch Cloud
◉ Retrieve any available threat intelligence information on the file and check for occurrences of known indicators of compromise (IOCs)
◉ Collect identification information on the host and username

The answers to these questions provide contextual information to the investigator to aid in determining the legitimacy, impact, urgency, and scope of the incident. This information in turn determines appropriate response actions, which may include:

◉ Quarantining the host on the network
◉ Blocking the file hash across the network
◉ Blocking IOCs
◉ Scanning and cleaning any devices with occurrences of IOCs

Betting on SOAR

The cybersecurity skills shortage, tight IT budgets, the dynamic nature of the threat landscape, and the need to optimize security operations make SOAR a compelling proposition.

With Cisco MDR, security alerts, correlation, and enrichment are automated; blocked items are propagated for instant containment; and indicators of compromise are reported near-instantly for blocking, hunting, and follow-up.

The result is streamlined security operations and a stronger security posture without breaking the IT budget or having to recruit a team of security analysts.

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