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Analyzing Logs For Security Information Event Management

Importance of Log Analysis

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All network systems and devices like Windows/Linux desktops & servers, routers, switches, firewalls, proxy server, VPN, IDS and other network resources generate logs by the second. And these logs contain information of all the system, device, and user activities that took place within these network infrastructures. Log files are important forensic tools for investigating an organizations security posture. Analysis of these log files provide plethora of information on user level activities like logon success or failure, objects access , website visits; system & device level activities like file read, write or delete, host session status, account management, network bandwidth consumed, protocol & traffic distribution; and network security activities like identifying virus or attack signatures and network anomalies.

What is Security Information Event Management?

Security Information Event Management (SIEM) refers to the concept of collecting, archiving, analyzing, correlating, and reporting on information obtained from all the heterogeneous network resources. SIEM technology is an intersection of two closely related technologies, namely the Security Information Management (SIM) and Security Event Management (SEM).

Security Information Event Management

According to Wikipedia "Security Information Management (SIM), is the industry-specific term in computer security referring to the collection of data (typically log files; e.g. eventlogs) into a central repository for trend analysis. This is a basic introductory mandate in any computer security system. The terminology can easily be mistaken as a reference to the whole aspect of protecting one's infrastructure from any computer security breach. Due to historic reasons of terminology evolution; SIM refers to just the part of information security which consists of discovery of 'bad behavior' by using data collection techniques..." So, to a large extent SIM is concerned with network systems, like Windows/Linux systems, and applications. As a technology SIM is used by system administrators for internal network threat management and regulatory compliance audits.

SEM on the other hand is concerned with the "real time" activities of network perimeter devices, like firewalls, proxy server, VPN, IDS etc. Security administrators use SEM technology for improving the incident response capabilities of the perimeter/edge devices through network behavioral analysis. The target audience for SEM technology is NOC Administrators, Managed Security Service Providers (MSSP), and of course the Enterprise Security Administrators (ESA).

Introducing ManageEngine® EventLog Analyzer for SIM

ManageEngine® EventLog Analyzer ( is a web-based, agent-less syslog and windows event log management solution for security information management that collects, analyses, archives, and reports on event logs from distributed Windows host and, syslogs from UNIX hosts, Routers & Switches, and other syslog devices. EventLog Analyzer is used for internal threat management & regulatory compliance, like Sarbanes-Oxley, HIPAA, GLBA, PCI, and others.

EventLog Analyzer is used to:

  • Provide a centralized repository for all the collected resource logs
  • Mine through the collected system logs and generate pre-defined and custom reports
  • Zero in on applications causing performance and security problems
  • Determine unauthorized access attempts and other policy violations
  • Identify trends in user activity, server activity, peak usage times, etc.
  • Obtain useful event, trend, compliance and user activity reports
  • Understand security risks in your network
  • Monitor critical servers exclusively and set alerts
  • Understand server and network activity in real-time
  • Alert on hosts generating large amounts of log events indicating potential virus activity
  • Schedule custom reports to be generated and delivered to your inbox
  • Generate reports for regulatory compliance audits
  • Identify applications and system hardware that may not be functioning optimally
  • Centralized archival of all collected logs for meeting regulatory compliance requirements
  • And more.

Introducing ManageEngine® Firewall Analyzer for SEM

ManageEngine® Firewall Analyzer ( is a firewall log analysis tool for security event management that collects, analyses, and reports on enterprise-wide firewalls, proxy servers, and VPNs to measure bandwidth usage, manage user/employee internet access, audit traffic, detect network security holes, and improve incident response.

Firewall Analyzer helps you to:

  • Manage heterogeneous perimeter devices
  • Provide a centralized repository for all the collected device logs
  • Mine through the collected device logs and generate pre-defined and custom reports
  • Analyze incoming and outgoing traffic/bandwidth patterns
  • Identify top Web users, and top websites accessed
  • Project trends in user activity and network activity
  • Identify potential virus attacks and hack attempts
  • Determine bandwidth utilization by host, protocol, and destination
  • Detect anomalies through network behavioral analysis
  • Analyze efficiency of firewall rules
  • Determine the complete security posture of the enterprise
  • Provide user specific firewall views to manage authorized perimeter device
  • Generate instant reports for bandwidth usage, traffic statistics, user activities, and more
  • Manage remote/customer premises firewalls and generate customized reports
  • And more.

About ZOHO Corp.

Founded in 1996, ZOHO Corp. is a software company with a broad portfolio of elegantly designed, affordable products and web services. ZOHO Corp. offerings span a spectrum of vertical areas, including network & systems management (, security (, collaboration, CRM & office productivity applications (, database search and migration (, and test automation tools (

ZOHO Corp. and its global network of partners provide solutions to multiple market segments including: OEMs, global enterprises, government, education, small and medium-sized businesses and to a growing base of management service providers.,

EventLog Analyzer Trusted By

Los Alamos National Bank Michigan State University
Panasonic Comcast
Oklahoma State University IBM
Accenture Bank of America
Ernst Young

Customer Speaks

  • Credit Union of Denver has been using EventLog Analyzer for more than four years for our internal user activity monitoring. EventLog Analyzer provides great value as a network forensic tool and for regulatory due diligence. This product can rapidly be scaled to meet our dynamic business needs.
    Benjamin Shumaker
    Vice President of IT / ISO
    Credit Union of Denver
  • The best thing, I like about the application, is the well structured GUI and the automated reports. This is a great help for network engineers to monitor all the devices in a single dashboard. The canned reports are a clever piece of work.
    Joseph Graziano, MCSE CCA VCP
    Senior Network Engineer
  • EventLog Analyzer has been a good event log reporting and alerting solution for our information technology needs. It minimizes the amount of time we spent on filtering through event logs and provides almost near real-time notification of administratively defined alerts.
    Joseph E. Veretto
    Operations Review Specialist
    Office of Information System
    Florida Department of Transportation
  • Windows Event logs and device Syslogs are a real time synopsis of what is happening on a computer or network. EventLog Analyzer is an economical, functional and easy-to-utilize tool that allows me to know what is going on in the network by pushing alerts and reports, both in real time and scheduled. It is a premium software Intrusion Detection System application.
    Jim Lloyd
    Information Systems Manager
    First Mountain Bank

Awards and Recognitions

A Single Pane of Glass for Comprehensive Log Management