alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET ADWARE_PUP SecureDriverUpdater Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; bsize:45; content:"/driverupdateservicenewsdu/updateservice.asmx"; http.header; header_lowercase; content:"soapaction|3a 20 22|http|3a 2f 2f|systweak|2e|com|2f|GetDriverUpdatesData1|22 0d 0a|"; fast_pattern; reference:md5,783aef84f5b315704ff6b064a00e2573; classtype:pup-activity; sid:2034295; rev:4; metadata:attack_target Client_Endpoint, created_at 2021_10_29, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_30, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1496, mitre_technique_name Resource_Hijacking;)