1. Domain Generation Algorithms (DGA) in Stealthy Malware. https://www.damballa.com/domain-generation-algorithms-dga-in-stealthy-malware
2. Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content (RFC 7231). https://tools.ietf.org/html/rfc7231
3. List of all Browsers. http://www.useragentstring.com/pages/Browserlist/
4. ProxySG (Secure Web Gateway). https://www.symantec.com/products/secure-web-gateway-proxy-sg-and-asg
5. Referer Header. http://kb.mozillazine.org/Network.http.sendRefererHeader