alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Malleable C2 Amazon Profile"; flow:to_server,established; http.method; content:"GET"; http.uri; content:"/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books"; fast_pattern; http.cookie; content:"skin=noskin"; http.header_names; content:!"Referer|0d 0a|"; reference:md5,dc65cbf12622eb55f0fd382e0fe250c5; classtype:command-and-control; sid:2032749; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_04_28, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2020_11_05, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)