alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Kaspov Related Hex In HTTP Accept Header"; flow:to_server,established; http.method; content:"GET"; http.accept; content:"|d1 69 4a cd 4f a4 77 44 bb 85 c3 6d 8d 4a 84 d6 86 a0 fa 1a af 8b d8 98 05 5e a0|"; startswith; fast_pattern; reference:md5,767370995ad5bdbcdaee2e3123cfe47c; classtype:bad-unknown; sid:2035768; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_06, deployment Perimeter, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_14;)