Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Kaspersky AntiVirus - Download the best FREE antivirus for Windows-based desktops, laptops, & tablets and get the core protection against viruses, spyware, phishing & dangerous websites.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
AdwCleaner - AdwCleaner is a free removal tool for : Adware (ads softwares)
Prometheus - An open-source systems monitoring and alerting toolkit.