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EDR Security – Ransom protection of endpoints

EDR Security – Ransom protection of endpoints

Ransomware, Phishing and a variety of endpoint threats

According to NIST’s security trends report for 2019, 70% of violations originate at the endpoint. The study analyzed more than 6 million enterprise devices and found that the main cause of endpoint violation was existing vulnerability, and only 42% of endpoints were actually protected from threats.

Endpoints are easy targets for cyber attackers, who use them to initiate a variety of attacks. Attackers typically use the endpoint as a means to an end – the network and the information it contains. Once they have information that is important to the organization, they sell it at the highest possible price, demand a “ransom” amount for restoring the information or removing the encryption, or use it to commit financial and identity fraud.

Here are some types of attacks that make endpoints an information security risk:

Phishing Attacks aimed at email users. Victims receive an email impersonating a legitimate entity, tricking the user into revealing sensitive information or downloading malware in a legitimate shell.
Malvertising Malicious Ads Containing Malware. Victims click on legitimate websites and get infected with malware
Ransomware A type of malware that blocks the victim’s access to encrypted data. The victims have to pay a ransom in order to return their data
Drive-by downloads Victims click on legitimate-looking websites, links or software updates. The click downloads malware or software that includes “ransomware encryption” without the victim’s knowledge
Unpatched Vulnerabilities Endpoints that are not updated on a regular basis in terms of UTM updates often fall into attacks. Threat players use such security vulnerabilities to hack into the network.

How does the EDR system work?

EDR security solutions provide real-time visibility to network endpoints, as well as proactive capabilities for identifying and responding to end-threats. To enable these capabilities, EDR solutions use the following mechanisms:

1. Data collection – data collection created by activities at endpoints, such as communication, user logins and execution of processes

2. Data log documentation – real-time data recording of security events at endpoints. Cyber teams on the EDR vendor side use this information to respond to security incidents as they occur

3. Detection Engine – Performs behavioral analysis, which establishes a normal norm as the basis of endpoint activity and identifies which anomalies represent malicious activity

To provide real-time endpoint visibility and analysis, EDR solutions perform these three tasks continuously. Once a threat is detected, the EDR solution will alert administrators and / or apply a predefined threat response.
The variety of EDR solutions available in the market is large and it is worth comparing and paying attention to the main features of each system in order to choose the solution that best suits your needs and budget.

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What are the advantages of EDR over Antivirus in endpoint security?

Visibility at the endpoint

EDR solutions provide visibility to network endpoints, where there is often chaos and security vulnerabilities. It is difficult to defend against something you do not see and many threats attack the ‘blind spots’ of system administrators. But unlike antivirus solutions, or in their modern name EPP, which offer only device-level visibility, EDR solutions allow control of network-level endpoints.

Real-time event discovery and analysis

EDR solutions enable continuous monitoring alongside automated processes and thus gain an advantage in the ability to hunt threats at endpoints. Threat detection capabilities vary from solution to solution, but most look for patterns and anomalies that represent malicious activity. Solutions powered by artificial intelligence (AI) continue to study the web, users and events, and provide cyber teams with the latest information

Automatic response to an event

Once the EDR solution is defined, the processes are deployed and applied automatically. Everything from threat detection to event investigation and event alerts is automated. Some EDR solutions even allow for automatic response to events. You can simply set triggers and view a real-time enforcement enforcement system. Along with the response, an alert is recorded for the event and thus you can follow how the EDR solution maintains the security of your network.

Automation and AI-based systems

When it comes to EDR solutions, it is recommended to work with an AI-powered system, as it will provide continuous automation and learning capabilities. The EDR solution will continue to study network and security events and improve the insights gathered over time. The result is a higher level of analysis and security and a greater readiness to respond to events.

What is an event response plan?

An event response plan is a set of procedures that lists what to do when your organization detects a cyber incident. The plan specifies who is responsible for what, what steps to take to minimize damage and the order in which the steps are taken, damage reduction tools (products and / or work processes), and how to carry out follow-up to ensure that such an event can not occur again.

The better prepared you are, the better you will be able to handle a cyber event regardless of the size of the organization. Whether it’s a 5-budget organization or a CISO at Fortune 500, you need an event response plan.

Building a response plan is a process that aims to cover all the important elements in dealing with a cyber incident. The process also requires a deep look at the systems, the nature of the users’ work and previous security failures if they were to build a solid plan that would help respond with a moment’s notice. It is advisable not to target it to a specific scenario but to be able to apply it to most, if not all, situations.

The plan should be:

Repeatable : So that it can be applied without reinventing the wheel on any scenario.
Standard : So it can be applied in a variety of situations.
Documented : So that there will be no unanswered or unanswered questions. In addition, everyone involved can see what they are responsible for.

Who should be on the response team for cyber incidents in the organization?

It is not just the information security team in the organization that trusts in preparing for and responding to cyber incidents. The cyber team is critical, however there are many other people who need to be part of the response team including:
management board Confirm decisions at the highest level
IT Department Set policy
The legal department In cases of implications or requirements of the law
Human Resources In cases of internal threats or in any other issue involving employees
Marketing / PR Deliver desirable messages both internally and externally

Every member of the team (also called CIRT) must be aware of his responsibility during an attack and therefore it is advisable to perform scenario preparation exercises. This type of practice will ensure that when it is necessary to execute the event response plan in real time, anyone will be able to respond quickly to minimize the injury and return to routine.

There is no point in investing your time and effort in creating an event response plan if it does not work when needed. Make sure you review your plan through exercises to identify all the stages of responding to events that need to be improved or clarified.

CIRT Cyber Event Response Program