Researchers are tracking a new variant of the Mirai malware after it launched a 54-hour long DDoS attack against a U.S. college.

DVR’s, IP-enabled cameras, home cable equipment and many other IOT connected devices are that latest in potent DDoS tools available to attackers.

An attacker known as Anna-senpai released source code for the Mirai malware, which was used in a 620 Gbps DDoS attack against Krebs on Security.