Update: Researchers Scanning the Internet

https://isc.sans.edu/diary/Update%3A%20Researchers%20scanning%20the%20Internet/30102

Malicious OpenBullet Configuration Files

https://www.kasada.io/threat-intel-openbullet-malware/

Abusing Cloudflare Tunnels

https://www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/