![]() By default on Windows, the EclecticIQ Endpoint Response application enables file events on all the directories and instead relies on the EclecticIQ agent's filters to do a more targeted collection of events. FIM on EclecticIQ Endpoint Response agent (osquery and the extension) can be configured just like file events are configured on other operating systems (Linux/MacOS) that are natively available in osquery. Configuring FIM in EclecticIQ Endpoint ResponseĮclecticIQ ER application packages osquery and the extension together with a web-based application to enable the management of the agents. The EclecticIQ Extension tracks each process by its GUID. With each file event, what also gets collected (and reported) is the file hash and the process that triggered the file activity. As the events are recorded in real-time, this can form a much more sophisticated foundation for configuring FIM on Windows with osquery. Thus, collecting data using win_file_events also brings the file activity done on other types of storage like the attached USB drives and the network mounted drives. The file events are recorded in table known as win_file_events and the schema for reporting file events is as below.Īctivities collected in win_file_events, unlike ntfs_journal_events, are not restricted to drives with NTFS file systems only. Each event type is reported in an extended table and because it natively fits with osquery, all the SQL syntax and structures get honoured. Each event is also enriched with the contextual information around the event that includes the process that triggered the event, the user context, the file hashes (for file events) and the date-time stamps. Using EclecticIQ Extension to osquery creates tables based on a kernel module that extends osquery on Windows with a wide range of real-time events as they happen on the device. Using FIM in osquery with EclecticIQ Extension And contextualization of an event can be very critical, more often than not (even chatGPT thinks so).įigure 1: ChatGPT on FIM. This provides an advantage of not having to install a kernel component (like a mini-filter driver) but that comes at a cost of missing important context around the event. ![]() The reason for that being 'under-the-hoods' implementation of the table as it relies on monitoring NTFS journal. It also lacks a unique file identifier like file hash (e.g. Unfortunately, it doesn't provide any info on which process did the action. Looking at the schema of the ntfs_journal_events, it gives a detailed information on the target file and the type of modification event. There are limitations to what osquery can achieve. This table provides monitoring capabilities for file system events on Windows and is a good start for getting basic FIM capabilities on Windows. For a long time, this capability was available only on Linux and macOS until a much later version when FIM was also available using osquery's ntfs_journal_events table created on Windows. The evented tables capture the events on a pre-determined set of directories (or files) and thus osquery agent captures the changes to the files being monitored. Osquery achieves FIM through the evented tables. Thereby, having a FIM solution is not only important from the standpoint of a compliance requirement, it also is an essential toolkit for security monitoring. FIM solutions use different methods, such as comparing file attributes (e.g., file size, timestamps, hashes) to detect changes, monitoring file access and modification events, or using machine learning to detect anomalous behaviour. configuration as well as content files) and can trigger alerts based on rules around the access. FIM solutions are also used to monitor activities on sensitive files (e.g. The aim of FIM is to verify the integrity of application software files to determine if they have been tampered with or if a fraud has occurred by comparing them with a baseline. ![]() FIM is an important security control needed for almost all kinds of compliance requirements, like PCI DSS, HIPAA, GDPR and ISO. EclecticIQ Endpoint Security Team – March 15, 2023įile Integrity Monitoring (FIM) is a security control that helps organizations ensure the integrity of their files and systems by monitoring changes to files and directories.
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