alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Redline Stealer TCP CnC - Id1Response"; flow:established,to_client; content:"http://tempuri.org/Entity/Id1Response"; offset:5; depth:37; fast_pattern; content:"|01 01 01|"; endswith; reference:md5,c0054e73bfcd26d2690b0b5094997463; classtype:trojan-activity; sid:2043234; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_11_02, deployment Perimeter, malware_family Redline, performance_impact Low, confidence High, signature_severity Major, tag c2, updated_at 2023_01_06, former_sid 2850353;)