Know what SIEM is. Maybe for readers who are still unfamiliar with the term SIEM (Security Information and Event Management), SIEM is a system that helps you to monitor network traffic and provide real-time analysis of logs generated by security applications or devices. SIEM is also a log management system that collects logs from various applications and security devices such as servers, networks, databases, firewalls, etc.

Why Choose Managed SIEM?

Find Out More To Know Why managed siem Is Needed. Modules are part of CYBERSHIELD and they all contribute to their value, both for wizardcyber.com and customers because wizardcyber.com can do things faster, faster, and leaner. wizardcyber.com Also a Microsoft Gold partner, and ISO 27001 and 9001 Certificated. wizardcyber.com Has a team of highly skilled and trained Microsoft Security Stack experts and SOC analysts.

wizardcyber.com is the best cyber security company uk Also has an independent CTI (Cyber ​​Threat Intelligence) Team. They collect and generate Threat Intelligence (IT) reports which are used to profile customers to write new threat detection rules and send Security Advisors (SA is a module within CYBERSHIELD). 

Full Incident Response is also handled as part of siem managed services, and DFIR (Digital Forensic Incident Response) is also available as part of the package if needed (optional extra/add-on for an extra cost)

In addition, wizardcyber.com will be more globally focused. They just need to focus their message on how good Cyber ​​Wizard and SOC are, and how well CYBERSHIELD compliments and makes things better.

Create a company that uses Microsoft Azure / Office 365 and has at least 100 employees, definitely really needs it. The bigger the company, the easier it is for them to sell the way they want and have a real understanding of their CYBER needs. As well as appropriate C-level executives such as the Head of Office of Information Security or Director of Cyber ​​Security.

Case Examples Why SIEM is Necessary

Case Example 1:

Imagine an attack that occurred on your website a few weeks ago. You are aware that there has been a breach in your security system, but you also need to perform a forensic data analysis of what was breached/infiltrated during the attack. Therefore, you need to keep track of what activities are happening during the week. In this case, SIEM can help. For example, to find the IP address of the attacker based on different anomalies. List of files accessed/downloaded by a specific IP address. Files have been transferred to the outside world from IP addresses etc.

Case Example 2:

You received some attack / DOS against the web server, in this case, you can set rules (based on the attack signature) in SIEM to block further attacks. In addition, you can also see various warnings on the SIEM dashboard.

How does SIEM work?

Security applications and tools generate logs for each event that occurs. For example, if your system will be maintained due to s/w installation, it will be displayed in SYSLOG. If your security device (firewall) experiences multiple security warnings, it will generate a log. Similarly, all applications will generate logs for every event that occurs. We need to send the logs generated in each centralized security application/device to SIEM as shown in the figure.

We can install the collector into various applications/security devices to be monitored. Additionally, we can configure the collector to send logs from security applications/devices to SIEM.

The raw logs that are sent are very difficult to read or analyze. Because SIEM is a tool that can analyze raw logs and display the information you need.

SIEM collects logs from different security applications and devices and manages them as a central or commonly called log store.

Usually, the size of the log size is based on the level of network traffic. Therefore, Big Data analysis also plays an important role in SIEM. In short, SIEM collects all logs from different security applications/tools (log sources), and processes and analyzes logs as required by SIEM users.

Datacomm Cloud Business as a service provider has one of the Sentriciti products from datacomm, namely Security Remote Monitoring (SRM) which will provide comprehensive protection services against the most challenging attacks. With the addition of a dashboard portal for users, it will provide a view to monitoring activity and analysis of your application/security device logs.

Top Criteria for Security Events and Information Management Tools (SIEM)

Top Information Security Management Considerations

1. Ensure your log management layer is scalable. The log management layer is responsible for collecting the audit log stack in your environment; it is not possible to filter the collected data. A key requirement for a Security Information Management (MIS) tool is to collect all audit log data so that forensic investigations can be carried out if needed. Therefore, this layer needs to be scaled to ensure complete log collection.

2. Comprehensive Reporting. The log management layer should be able to report on activities that have been collected and identified in accounting and audit logs. This should include reports that run on data for up to 90 days. When you collect 10-20 million logs per day, this means the report needs to search more than 2 billion entries to retrieve the data requested for the report. It is also possible that you will run several reports in a day.

3. Log Collections. It is important that you can collect logs from across the company. The MIS layer should be a true repository of forensic accounting and audit logs allowing a complete investigation if required. This means you want logs from firewalls, operating systems, applications, VPNs, Wireless Access Points, etc. Therefore, you need to ensure that logs from all these sources can be collected. Plain text logs stored in flat files are usually broadly collected, as are Windows Event Logs. Event logs stored in databases are not easy to collect, so if you have a custom-built or built-in application, make sure that these logs can be collected, as they are often stored in some kind of database.

4. Chain of Custody. Make sure you can validate that the logs were not modified or modified, as they were collected from the source device. This should include a real-time collection of logs from the original device, to ensure they are not modified before being collected. This will allow for a forensically assured investigation if required.

5. Trend Dashboards. It is important to be able to see trends in the volume of wood collected. When collecting millions of logs per day, flattening all that data becomes useless, because it will become a sea of ​​information. But the size of the haystack can tell you if there’s a problem. For example, if you see a large spike in failed logins, this is telling you that something is going on in an abnormal environment.

Top Security Event Management Considerations

1. Correlation. The main purpose of SEM tools is to filter noise from forensic data and flag or alert any suspected behavior. Therefore, it is very important that your SEM can filter the garbage into useful information through complex correlation rules.

It’s almost useless to be wary of every failed login in your environment because in large companies there are hundreds or thousands of these per day. However, 100 failed logins within five minutes, from external IP addresses, for administrative accounts should be warned and investigated. Your correlation engine should support the easy generation of these multiple-event rules.

2. Dashboards. Once you’ve created correlated alerts, you’ll want to place this information on the dashboard for easy user consumption. Although it is not feasible to create a dashboard of forensic data that has been collected by SIM, due to the large volume, it is advisable to create a dashboard of SEM alerts, as there are likely to be far fewer of them. On average you should alert less than 1% of the 1% of collected logs which equates to a maximum of 200 alerts out of 2 million audit logs collected. With a very powerful correlation engine, we hope to eventually set this alert to 2 per day instead of 200 per day. You just want to be warned about TRUE security or operational risks for your company, not every time someone fat enters their password.

3. Reporting. While reporting capabilities are very important for MIS, it is also important for SEM. Reports won’t be too difficult to generate, for starters you’re not reporting billions of logs, you’re most likely reporting tens of thousands of alerts. But management wants to see that critical warnings have been addressed and resolved.

4. Log Normalization. To create detailed alerts you need to “understand” the raw logs, for example, you need to understand which part of the log string is the group name if, for example, you want to be notified when a user is added to the administrator’s group. Most vendors will create normalization rules for standard applications off the shelf, but you should be able to normalize your organization’s custom log formats, without having to hire a vendor, possibly expensive, professional service consultant.

5. Alert Management. Apart from creating complex alerts based on correlation rules, the status of the generated alerts can also be tracked. Has the Alert been resolved? What steps are taken after the warning is raised? A built-in ticketing system or tight integration into an existing ticketing system is an important feature of the Security Event Management tool.

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