Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.BEACON.[CSBundle Original Server 3]"; flow:established,from_server; content:"{|22|alias|22 3a 22|apx|22|,|22|prefix|22 3a 22 22|,|22|suffix|22 3a|null,|22|suggestions|22 3a|[],|22|responseId|22 3a 22|15QE9JX9CKE2P|22|,|22|addon|22 3a 20 22|"; fast_pattern; content:"|22|,|22|shuffled|22 3a|false}"; reference:url,github.com/fireeye/red_team_tool_countermeasures; classtype:trojan-activity; sid:2031268; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, confidence High, signature_severity Major, tag c2, updated_at 2020_12_09, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)