![]() These assets include system and configuration files, as well as files containing sensitive information. #1.1 Scope which files and directories need to be monitoredĬreate and maintain a comprehensive list of the files and directories that need monitoring. ![]() You cannot secure what you can’t see, and thus, having a list of files and directories that are important for you is the very first best practice you must implement in your infrastructure.Ī word of caution here: Too big of a scope will cause too many alerts, and it can lead to too many false positives and alert fatigue, rendering your whole FIM untrustable and worthless. Maintaining an asset inventory is the first step in securing your system. This selected set of file integrity monitoring best practices are grouped by topic, but please remember that FIM is just a piece in the whole security process. Gather forensics data for further investigation.Implement an automated alert and response mechanism. ![]() Detect real-time threats with runtime policies.Shift left with image scanning policies.Scope which files and directories need to be monitored.This article dives into a curated list of FIM best practices, focused on host and container security: Click to tweetįollowing these best practices for the tools you use in your infrastructure will help you detect this kind of attack. ![]() □□ Malware, leaked credentials or attacks can be detected with file integrity monitoring. In an ideal scenario, any change occurred in a sensitive file by an unauthorized actor should be detected and immediately reported. Knowing if any of these files have been tampered with is critical to keep your infrastructure secure, helping you detect attacks at an early stage and investigate them afterwards.įIM is a core requirement in many compliance standards, like PCI/DSS, NIST SP 800-53, ISO 27001, GDPR, and HIPAA, as well as in security best practice frameworks like the CIS Distribution Independent Linux Benchmark. By monitoring these files, we can detect those unauthorized modifications and react immediately to those compromising attempts.įile integrity monitoring (FIM) is an ongoing process which gets you visibility into all of your sensitive files, detecting changes and tampering of critical system files or directories that would indicate an ongoing attack. Security and visibility for cloud applicationsĭiscover how applying a quick set of file integrity monitoring best practices will help you detect the tampering of critical file systems in your cloud environment.Īn attacker can gain access to your system escaping the container by modifying certain files, like the runc binary ( CVE-2019-5736). ![]()
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