alert tcp any any -> any any (msg:"🐾 - 🔥👁 FireEye - Backdoor.HTTP.GORAT.[POST]"; content:"POST / HTTP/1.1"; depth:15; content:"Connection: upgrade"; content:"|0d 0a|Upgrade: tcp/1|0d 0a|"; content:!"|0d 0a|Referer:"; content:!"|0d 0a|Accept"; content:!"|0d 0a|Cookie:"; reference:url,https://www.fireeye.com/blog/products-and-services/2020/12/fireeye-shares-details-of-recent-cyber-attack-actions-to-protect-community.html; reference:url,https://www.fireeye.com/blog/threat-research/2020/12/unauthorized-access-of-fireeye-red-team-tools.html; reference:url,https://github.com/fireeye/red_team_tool_countermeasures; metadata:created_at 2020_12_11, updated_at 2020_12_11; sid:3309576; rev:1; classtype:trojan-activity;)