alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Possible DACLS RAT CnC (Log Server Reporting)"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"log=save&session_id="; depth:20; fast_pattern; content:"&value="; distance:0; pcre:"/^log=save&session_id=[^&]+&value=[^&]+$/"; reference:url,blog.netlab.360.com/dacls-the-dual-platform-rat-en/; classtype:command-and-control; sid:2029879; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_04_10, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_16;)