Kindly ADD to CART and Purchase an editable Word File at $5.99
A SIEM system is one of the indicators that a company well laid cyber security policies. In most cases, cybercrimes are hard to tell from a surface look level. Majority of security programs tend to operate on small scale hence addressing minor threats hence missing to capture bigger cybercrimes. Due to these cases involving cyber security, SIEM aroused as a solution to these attacks (Vielberth and Pernul, 2018). According to a survey carried out recently, only a few companies are benefitting from this program despite SIEM Being a $2 billion industry.
The acronym SIEM stands for security information and event management. This is a section within computer security that entails a combination of security event management (SEM) and security information management (SIM) by software services and products. Amrit Williams and mark Nicollet of Gartner came up with the word Security information and event management and its initials SIEM The acronyms SIM, SEM and SIEM can interchangeably be used although they have different rudimental focal point of products:
Security information and event management mostly comes as a software solution whose main function is to collect and analyze all the activities carried out within an organization’s IT infrastructure. SIEM collects these data from many resources and that includes: servers, network devices, domain controllers and many more (Vielberth and Pernul, 2018).
Mostly the products in this section tend to a mixture of the above functions hence a convergence of the functions. This makes various sellers to appraise their terminologies and also provide a variety of functions in the essence improving SIEM in general. A combination of these functions like log management and SEM will result to more information for SIEM to look at. For easy identification of cyber threats or attacks, organizations use SIEM tools. There are various tools to be used and they include:
Other tools include: OSSEC, LogRhythm NextGen SIEM Platform, AT&T Cybersecurity AlienVault Unified Security Management, IBM QRadar SIEM, RSA NetWitness Platform, McAfee Enterprise security Manager and many more.
How SIEM Works
The purpose of SIEM software is to collect logs of data, identify incidents and groups them and finally carries out an analysis. The analysis is to determine availability of security related events and if there is to send alerts. The first step is known as data aggregation carried out by log management. In this step, data is assembled from different sources within an entity’s technological infrastructure. These sources include: anti-virus filters, host systems, networks, firewalls, servers, applications and databases. The purpose of collecting these logs of data is to ensure that monitored data is consolidated and also prevent not getting important events.
The second step is correlation of the data aggregated. This is a function of the security event management section of the whole SIEM solution (Safarzadeh, Gharaee & Panahi, 2019). This technology ensures that events are looked at to come up with meaningful data. Common features are located among the data collected and scenes linked together. The technology equips the system with the ability to perform correlation using various techniques and also integrate various sources.
After correlation of data, the software carries out an analysis of the incidents occurring. The main objective of this analysis is to come up with reports of events and incidents related to security. Such occurrences include; malware activities, failed and successful logins, viruses and other unpleasant activities. If the analysis detects any of the above events, it sends an alert to show a potential security threat issue or there is an unwanted activity running against set rules. Based on specified criteria, the software is capable of searching across loads of data on various nodes. This helps one the stress of aggregating loads of data and searching through them.
Importance of SIEM to Small and Medium-Sized Organizations
SIEM is increasingly becoming a key security component in modern companies and organizations (Podzins & Romanovs, 2019). Over the recent years, it has become critical as entities tend carry out upscales and updates to IT infrastructure that is becoming more complex. SIEM software is mainly used by public companies and big enterprises because they consider regulations compliance as a major factor in technology usage. This may also be due to high cost of putting the system in place. Small and medium sized companies often find it difficult to install the system but opt to outsource SIEM as a software service from vendors who are capable of providing the service. Despite all these challenges that small and medium sized companies tend to undergo in relation to acquiring SIEM Solutions, it is advisable they use the system because of the following reasons;
Elastic SIEM infrastructure.
Elastic SIEM is an advanced security system whose main supplier is Elastic Stack Products (Mulyadi, Annam, Promya, & Charnsripinyo, 2020). The team behind elastic SIEM is known as Elastic NV and it’s known for log file management products. Elastic SIEM proves to be a leader in the field. One of the key sources of SIEM methodology is log messages although log management is a section of a complete SIEM strategy. Elastic NV was previously known as Elasticsearch BV. Those responsible for this development created more products like beats, kibana, elasticsearch, logstash and elastic Endpoint Security. These tools can be combined with other tools by third parties and used effectively. Elastic SIEM has features that are easy and flexible to use since users make decisions on the information source to use as input when detecting activities and monitoring the system.
The elastic infrastructure relies on the above named SIEM components. The whole process of functioning starts from Elastic Endpoint Security which acts as an agent and platform responsible for detection, prevention and response to any security attack (Mulyadi, Annam, Promya, & Charnsripinyo, 2020).. After receiving this information, it sends it directly to Elasticsearch as an alert. Beats are shippers of open source data hence act as agents on security systems. They send data and other security events to Elastic search. The Elasticsearch is a search, real-time, distributed storage engine. It also acts as an analyzer. Indexing bundles of partially structured data like metrics and logs is a function that Elasticsearch has excelled in.
Kibana system is responsible for provision of data representation tools. It also has the ability to carry out live network monitoring with the help of reporting standards of Cisco systems whereby the source is Netflow. Kibana provides a platform to carry out visualization and analytics. It is used to view, search and access the stored data in Elasticsearch indices. Through this simplified data, one is able to carry out advanced analysis of the data and then finally visualize it in tables, charts and even maps.
Elastic SIEM is helpful in many ways that include; threat intelligence, access rights supervision, user monitoring and detection of any anomalous activity with your security system. SIEM services need implementation of the whole Elastic stack. Elastic SIEM comes as added kibana screens. A network screen, overview screen and details of events and conversations from various hosts within a security system accompany the SIEM dashboard.
Information about events is displayed on the overview screen in form of a table. Each entry in this screen shows a suspicious event and one can get more details by expanding a line representing the occurrence. Graphs of host activity and maps of networks can also be shown on the overview screen.
In conclusion, more organizations are switching to modern security systems for their IT infrastructure and one of the trending software in place is SIEM. The security information and event management software system is easy to use and has many benefits to big enterprises as well as small and medium-sized. It helps in detection and prevention of cyber-attacks, streamlining compliance reports and also improves efficiency in handling of incidents hence it advised to employ the system as much as it seems to be costly. The SIEM tools that help in implementation include; splunk, Solar winds security event manager, datadog security monitoring, ManageEngine Eventlog Analyzer and many more. Lastly, Elastic SIEM is an upgraded security system supplied by elastic stack. It is helpful in threat intelligence, detection of anomalous activities and supervision of access rights (Mulyadi, Annam, Promya, & Charnsripinyo, 2020).
Vielberth, M., & Pernul, G. (2018). A security information and event management pattern.
Mulyadi, F., Annam, L. A., Promya, R., & Charnsripinyo, C. (2020, October). Implementing Dockerized Elastic Stack for Security Information and Event Management. In 2020-5th International Conference on Information Technology (InCIT) (pp. 243-248). IEEE.
Podzins, O., & Romanovs, A. (2019, April). Why SIEM is irreplaceable in a secure IT environment?. In 2019 Open Conference of Electrical, Electronic and Information Sciences (eStream) (pp. 1-5). IEEE. Safarzadeh, M., Gharaee, H., & Panahi, A. H. (2019, November). A Novel and Comprehensive Evaluation Methodology for SIEM. In International Conference on Information Security Practice and Experience (pp. 476