alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Bit.do Shortened Link Request (set)"; flow:established,to_server; flowbits:set,ET.bit.do.shortener; http.method; content:"GET"; http.host; bsize:6; content:"bit.do"; fast_pattern; classtype:misc-activity; sid:2029549; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_28, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_05;)