alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP BoostBeast Checkin M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/api/"; startswith; content:"/task/installed"; endswith; fast_pattern; http.user_agent; content:"HeadlessChrome/"; reference:url,tria.ge/230131-lezarafg93/behavioral2; reference:md5,fbdd33cf51fe4113000a7fc14908b56d; classtype:trojan-activity; sid:2044041; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_01_31, deployment Perimeter, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_01_31; target:src_ip;)