File Integrity Monitoring and SIEM

03.02.2020 Read
File Integrity Monitoring and SIEM

Today’s cybersecurity threats such as Advanced Persistent Threats (APTs) are more dangerous than ever. Even the traditional security systems such as antivirus programs are unable to prevent them due to their sophistication and uncontrollable frequency. In order to prevent the menace of cyber threats and attacks, now companies are looking for multiple layered security to enhance their cybersecurity posture more effectively. This is the reason we use File Integrity Monitoring (FIM) and Security Information and Event Management (SIEM) together to safer the world.

In this article, we will detail and FIM, SIEM, and then the benefits of integrating FIM with a SIEM solution.

How FIM Is Helpful?

Sometimes, the legitimate modifications to hardware and software components occur when the security professionals apply patches to them. However, this would not be the case each time if changes are made by their unexpected nature or due to the internal or/and external threats.

The FIM is a security control that monitor and record changes to the system files and other critical applications in order to detect unauthorized modifications or cyberattack. The following files and configuration settings can be monitored by the FIM:

  • Operating System Files
  • File Systems such as FAT32 or NTS
  • Password Policy
  • User Accounts
  • Management and Monitoring Functions
  • Registry Keys and Values
  • User Rights Assignment

An effective FIM solution can help the organization in protecting their IT infrastructure, reducing noise, and staying compliant with various compliance standards such as HIPAA, NIST, SOX, FISMA, NERC CIP, and PCI DSS, as well as best practice frameworks such as the CIS security benchmarks.

How SIEM Is Valuable?

As per the Gartner, SIEM is a security technology utilized for security incident response and threat detection via a real-time acquisition and historical analysis of security events from a wide spectrum of contextual data sources.

In simple words, the SIEM enables security professionals to find, monitor, record, and analyze security events or incidents within a real-time environment and store their relevant data at a central place. In addition, with a SIEM tool, you can interpret logs, handle security alerts, perform data aggregation, use dashboards, utilize threat intelligence feeds, and conduct computer forensics.

Benefits of Integrating an FIM with SIEM Tool

Integrating the FIM with SIEM tool offers a lot of benefits to organizations in terms of enhancing cybersecurity posture. Below are some most common advantages in this regard:

  • User-aware FIM: This feature allows users to deliberately access and changes a file which is otherwise an illegitimate action.
  • Zero-day malware detection: File integrity is mostly compromised by a malware threat vector. SIEM system can help you protect against malware even before it harms your critical files. SIEM has the capability to detect zero-day malware through IDS/IPS logs and AV and correlating them with file audit events.
  • Meeting compliance requirements: SIEM solution offers out-of-the-box templates that assist with compliance audits.


Since cybersecurity threats are fast and sophisticated, you cannot rely merely on traditional security tools such as antivirus programs or firewalls. Instead, multiple layered security solutions are required to deal with this situation. To this end, companies use FIM and SIEM together to enhance their cybersecurity posture.

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