By default, Syscheck runs every 6 hours, but the interval between scans can be user-defined with the frequency option.
Syscheck scans are designed to run slowly to avoid too much CPU or memory use.
All of the checksums are stored on the manager
Yes, this is possible when monitoring directories. Using the
report_changes option gives the exact content that has been changed in text files within the directory being monitored. Be selective about which folders you use
report_changes on, because this requires syscheck to copy every single file you want to monitor with
report_changes to a private location for comparison purposes.
See an example of this configuration by clicking on report changes
The Wazuh manager stores and looks for modifications to all the checksums and file attributes received from the agents for the monitored files. It then compares the new checksums and attributes against the stored ones, generating an alert when changes are detected.
Yes. By default Wazuh monitors
/sbin on Unix-like systems and
C:\Windows\System32 on Windows systems.
Yes, you can force an agent to perform a system integrity check with:
/var/ossec/bin/agent_control -r -a
/var/ossec/bin/agent_control -r -u <agent_id>
See the Ossec control section for more information.
By default, syscheck scans when Wazuh starts, however, this behavior can be changed with the scan_on_start option
Wazuh can send an alert when a new file is created, however, this configuration option would need to be set up by the user. Use the alert_new_files option for this configuration.