alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/TrojanDownloader.Small.AWO CnC Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"boxfid.php?&mac="; fast_pattern; content:"&action="; distance:12; within:8; content:"&disk="; distance:0; content:"&md5="; distance:0; isdataat:!33,relative; reference:md5,047719e7aae5c1466db7c82a18726828; classtype:command-and-control; sid:2031605; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_02_04, deployment Perimeter, malware_family Win32_TrojanDownloader_Small_AWO, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_02_04;)