Based on our record, osquery seems to be a lot more popular than Ossec. While we know about 18 links to osquery, we've tracked only 1 mention of Ossec. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
The largest we have successfully deployed is on the OSQuery schema https://osquery.io/ which is 277 tables and lots of business context (malwares, vulnerabilities, Windows registry keys, etc). - Source: Hacker News / 3 months ago
From a self hosted standpoint OSQuery or Wazuh are your best bets for monitoring USB devices. Windows makes blocking really challenging and I’m not aware of any “free” solutions that attempt it. Source: 12 months ago
Configure auditd to monitor host activity: https://izyknows.medium.com/linux-auditd-for-threat-detection-d06c8b941505 or osquery: https://osquery.io/ (or similar software: filebeat for example). Source: about 1 year ago
OS Query : Easily ask questions about your Linux, Windows, and macOS infrastructure. - Source: dev.to / over 1 year ago
Osquery + Fleet. https://osquery.io/ https://fleetdm.com/, using the two allows you to build a query to answer what ever questions you (or an auditor) might have about your environment. Source: over 1 year ago
I'd take it one step further and install OSSEC as well. It can be configured to run as a local daemon and report suspicious activity, and also intervene. So if somebody is brute-forcing the login on your web page, it'll create a burst of 401s which OSSEC will detect in the logs and block the offender for X minutes/hours. Source: over 2 years ago
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snort - Snort is a free and open source network intrusion prevention system.
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Wazuh - Open Source Host and Endpoint Security