The Complete Guide to Log and Event Management

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The Complete Guide to Log and Event Management,Table of Contents 2 Introduction. 3 Security Information and Event,Management Defining Features. 3 Log Management Defining Features,4 High level Comparison SIEM vs Log. Management,5 SIEM and Log Management Use Cases,6 Technology Trend. 7 Example SIEM and Log Management,7 Architecting Log Management and SIEM.
9 What to Do First SIEM or Log,Management,10 Do All Companies Have to Graduate. from Log Management to SIEM,11 After Log Management and SIEM. Maturity Curve,13 Mistakes,16 Conclusions,16 About the Author. Sponsored By,Introduction, Security information and event management Novell Sentinel are used by firms large. SIEM technology has existed since the late and small from Fortune 1000 or Global. 1990s but it has always been somewhat 2000 organizations to tiny SMBs small and. controversial in the security industry due to medium businesses. its initial promise of a security single pane, of glass combined with slow adoption Before beginning our analysis it will be helpful.
across smaller organizations More recently to define SIEM and log management and. traditional SIEM has been joined by a broad explain the differences between them. use log management technology that focuses, on collecting a wide variety of logs for a SIEM covers relevant log collection. multitude of purposes from security incident aggregation normalization and retention. response to regulatory compliance system context data collection analysis correlation. management and application troubleshooting prioritization presentation reporting. In this paper we will analyze the relationship visualization security related workflow and. between these two technologies SIEM and relevant security content All the use cases for. log management focusing not only on the SIEM focus on information security network. technical differences and different uses for security data security as well as regulatory. these technologies but also on architecting compliance. their joint deployments For example if you, need to satisfy logging requirements of On the other hand log management. PCI DSS which one should you deploy includes comprehensive log collection. What technology is better suited to optimize aggregation original raw unmodified log. your incident response and investigation retention log text analysis presentation. procedures Which one will give you real time mostly in the form of search but also. insight about the attacks In addition we will reporting related workflow and content. provide recommendations for companies With log management the use cases are. that have deployed log management or broad and cover all possible uses for log data. SIEM in order for them to plot their roadmap across IT and even beyond. to enhancing optimizing and expanding, their deployment We will also recommend The key difference that follows from the above. a roadmap for companies that have already definitions stems from the fact that SIEM. deployed both of these technologies focuses on security the first word in security. information and event management and, SIEM tools first appeared on the market use of various IT information for security. in 1997 Their original use was for reducing purposes On the other hand log. network intrusion detection system IDS false management focuses on logs and wide. positives which plagued NIDS systems at ranging uses for log data both within and. the time The tools were complex to deploy outside the security domain. and use so they were only used by the,largest organizations with the most mature.
security programs The market was sized,at a few million dollars in the late nineties. while now some analysts report that the,market is on track to reach billions in the. coming years Today s SIEM tools such as,The Complete Guide to Log and Event Management. Security Information and Event well as correlation results to the analysts. Management Defining Features in near real time they can also be fed by. Let s further discuss what features can be historical archived data. called defining SIEM features most users Reporting Reporting and scheduled. will look for most of these features while reporting covers all the historical views. choosing a SIEM product The features are of data collected by the SIEM product. Log and context data collection This Some products also have a mechanism for. includes being able to collect logs and distributing reports to security personnel or. context data such as identity information IT management either over e mail or using. or vulnerability assessment results using a a dedicated secure Web portal. combination of agentless and agent based Security role workflow This covers. methods incident management features such as, Normalization and categorization This being able to open cases and perform. covers being able to convert collected investigative tasks as well as automatically. original logs into a universal format for use or semi automatically perform typical tasks. inside the SIEM product The events are for security operations Some products. also categorized into useful bins such as also include collaborated features that. Configuration Change File Access or allow multiple analysts to work on the same. Buffer Overflow Attack security response effort,Correlation This is used to describe rule.
The above functionality can be found in most,based correlation statistical or algorithmic. commercial SIEM products on the market,correlation as well as other methods that. today However most products have strong,include relating different events to each. and weak points as well as additional secret,other and events to context data Correlation. sauce features,could be in real time but not all tools.
support real time correlation and instead,focus on correlating historical data from their. databases Other log analysis methods are, sometimes bundled under the correlation Log Management Defining Features. label as well Let s start by considering the defining features. of a log management system These include,Notification alerting This includes being. able to trigger notifications or alerts to Log data collection This covers being. operators or managers Common alerting able to collect all logs using agent based or. mechanisms include e mail SMS or even agent less methods or a combination of the. SNMP messages two, Prioritization This includes different Efficient retention While collecting and. features that help highlight the important saving log data does not sound like a big. events over less critical security events engineering challenge being able to collect. This may be accomplished by correlating gigabytes and even terabytes of log data. security events with vulnerability data efficiently and retaining it while providing. or other asset information Prioritization fast searching and quick access to it is not. algorithms would often use severity trivial Given that many regulations mandate. information provided by the original log specific terms for log data retention. source as well ranging all the way to multiple years. this functionality is critical to a log, Real time views This covers security management system.
monitoring dashboards and displays used,for security operations personnel Such. displays will show collected information as, Searching is the primary way to access can make or break the log management. information in all of the logs including solution Reporting should be fast. logs from custom applications Search is customizable and easy to use for a broad. indispensable for investigative use of logs range of purposes The distinction between. log forensics and finding faults while using searches and reports is pretty clear Search. logs for application troubleshooting goes across all available collected logs in. A clean and responsive interactive raw original form like Google goes through. search interface is thus essential for a log Web pages while report operates on logs. management system which are parsed into a database like an. Excel spreadsheet Carefully evaluate how,Log indexing or parsing is a key component. easy it is to create a custom report in a log,of a log management system Indexing can. management tool This is where a lot of,speed up searches literally by a factor of.
solutions fall short by requiring that their,a hundred Indexing technology creates a. operators study the esoteric aspects of their,data structure called an index that allows. log storage data structures before they can,very fast keyword type searches and. customize the reports,Boolean type searches across the log. storage Sometimes indexing is used to, enable other full text analysis techniques Now let s perform a high level comparison.
Think about this as Google for logs Not between functions and features of SIEM and. all log management tools support indexing log management. or advertise log collection rates that don t,account for indexing so be careful with. vendor claims here, Reporting and scheduled reporting cover all High level Comparison SIEM. the data collected by the log management vs Log Management. product and are similar to SIEM reporting,In the table below we show key areas of. The strength of reporting whether for,functionality and explain how SIEM and log. security compliance or operational reasons,management are different.
Functionality Area Security Information and Log Management. Event Management SIEM, Log collection Collect security relevant logs Collect all logs including operational. logs and custom application logs, Log retention Retain limited parsed and Retain raw and parsed log data for. normalized log data long periods of time, Reporting Security focused reporting Broad use reporting historical. real time reporting reporting, Analysis Correlation threat scoring Full text analysis tagging. event prioritization, Alerting and Advanced security focused Simple alerting on all logs.
notification reporting, Other features Incident management other High scalability for collection and. security data analysis searching,The Complete Guide to Log and Event Management. Now let us review how SIEM and log,management technologies are used. Recently traditional SIEM has been,joined by a broad use log management. SIEM and Log Management,technology that focuses on collecting a wide.
Use Cases variety of logs for a multitude of purposes. Before discussing the joint architecture of from security incident response to regulatory. SIEM and log management we need to compliance system management and. briefly present typical use cases that call for, deployment of a SIEM product by a customer application troubleshooting. organization We will start from the very high,level of three main types of use cases. 1 Security both detective and investigative maybe a few hours each day and only review. Sometimes also called threat management alerts and reports as needed and not in. this focuses on detecting and responding near real time unless the events happened. to attacks malware infection data theft and while they were logged in to the product. other security issues,The third scenario is an automated SOC. 2 Compliance regulatory global and policy,scenario where an organization configures. local This focuses on satisfying the,their SIEM to alert based on rules and then.
requirement of various laws mandates,forgets it until the alert The analysts never. and frameworks as well as local corporate,log in unless there is a need to investigate. alerts review reports weekly monthly or, 3 Operational system and network perform other rare tasks This is the use case. troubleshooting and normal operations that many smaller organizations want and few. Specific mostly to log management this SIEM products can deliver at least not without. use case has to do with investigating extensive customization It is worthwhile to. system problems as well as monitoring the add that a lot of SIEM products are sold with. availability of systems and applications an expectation of being an automated SOC. but such expectations are rarely realized,On a more detailed level security and. compliance use cases fall under several Log management technologies have a role. scenarios Let s review them in detail in other scenarios outside of security as well. Application troubleshooting and system, The first usage scenario is a traditional administration are two additional important.
Security Operations Center SOC It typically use cases for log management systems. makes heavy use of SIEM features such When the application is deployed and its. as real time views and correlation A SIEM logging configured the log management. customer organization will have analysts system is used to quickly review errors and. online 24x7 and have them chase security exception logs It will also review summaries. alerts as they pop up This was the original of normal application activity in order to. SIEM use case when SIEM technology started determine application health and troubleshoot. in the 1990s today it is relegated to the possible irregularities. largest organizations only,Another scenario is compliance status. The next use case is sometimes called the reporting Here analysts or security. mini SOC scenario In this case the security managers review reports with a focus on. personnel will use non real time delayed compliance issues The review occurs. p 1 The Complete Guide to Log and Event Management Table of Contents SponSorEd By 2 Introduction 3 Security Information and Event Management defining Features 3 Log Management defining Features 4 High level Comparison SIEM vs Log Management 5 SIEM and Log Management Use Cases 6 pCI dSS 6 FISMA 6 HIpAA 6 Technology Trend 7 Example SIEM and Log Management Scenario 7 Architecting Log

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