Network Scanners Protection for Network Firewall by ThreatSTOP

ThreatSTOP protects against inbound scanners primarily through its IP Defense service, which uses continuously updated threat intelligence to automatically push blocking rules to firewalls, routers, switches, cloud security groups, and other network devices. Instead of waiting for a scanner to probe your network and then reacting, ThreatSTOP blocks connections from known malicious scanning infrastructure before the traffic reaches your systems.

How it works Threat intelligence aggregation ThreatSTOP collects and curates indicators from hundreds of public, private, commercial, and internally developed intelligence sources. These sources identify IPs associated with network scanning, SSH brute-force attacks, vulnerability reconnaissance, botnets, scrapers, and other malicious activity. Automated policy distribution The platform converts that intelligence into enforcement policies and automatically updates connected firewalls and network security devices. Malicious IPs and CIDR ranges can be dropped, blocked, or redirected before they interact with internal hosts. Blocking known scanner infrastructure ThreatSTOP publishes specific policies designed to protect against scanning and reconnaissance activity. Their Network Scanners Protection feed is described as protecting against "scanning, SSH, cracking, brute force attempts, and others" using ThreatSTOP research plus open-source and commercial blocklists. Protection at the network edge Because enforcement occurs on firewalls and edge devices, scanner traffic can be discarded before it reaches servers, endpoints, or applications. This reduces log noise, attack surface exposure, and resource consumption caused by large-scale Internet scanning.

Register with ThreatSTOP on the fulfillment page (no cost) and receive a 1 year subscription for ThreatSTOP's CheckIOC product for free!