alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP BoostBeast Checkin M1"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/api/taskforecast/installed"; bsize:27; fast_pattern; http.content_len; byte_test:0,=,0,0,string,dec; reference:url,app.any.run/tasks/556c8a11-a736-48db-9779-bb74db2431c6/; reference:md5,73923a750344d1a1e734a12e98271c69; classtype:pup-activity; sid:2044040; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_01_31, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_01_31; target:src_ip;)