alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP PUP/SpamFighter CnC Request"; flow:established,to_server; http.user_agent; content:"FighterSuiteUpdater"; bsize:19; fast_pattern; http.host; content:"spamfighter.com"; endswith; reference:md5,02033a50dc63fa46f76e71afc35d3188; classtype:pup-activity; sid:2044926; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_12, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_12;)