Shadowserver Foundation

Shadowserver scans the IPv4 Internet 45 times per day. It harvests data on malware, spam, bots, and botnets[7] using large-scale sensor networks of honeypots and honeyclients[8] placed throughout the world. It uses sinkholes to collect data on bots and DDOS attacks. It also receives additional malware and sinkhole data from governments, industry partners, and law enforcement agencies that have established reciprocal data-sharing agreements with Shadowserver.

Shadowserver stores raw malware data permanently in its repository. As new data are collected, Shadowserver analyzes them using thousands of virtual sandboxes and hundreds of bare metal sandboxes. It regularly re-analyzes raw data previously collected. The results of these analyses are stored in the organization's analysis cluster.

Shadowserver sends free daily network reports to users who have subscribed to them. The reports contain all the data that Shadowserver has collected and analyzed about any suspicious activity it was able to detect within the specific networks or regions for which the subscriber is responsible. For example, a national government might receive data aggregated by geo-spatial coordinates defined by latitude and longitude, while an international network provider might receive data filtered by ASN.

Shadowserver liaises with security organizations, national governments, and CSIRTs to dismantle global cybercrime networks; for example, it worked with the FBI, Europol, and Interpol to take down the Avalanche network in 2016.[9] It also helps law enforcement partners to develop strategies against cyber security threats and to mitigate threats as they emerge, focusing on cases that involve criminal abuse of the Internet’s infrastructure.