alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Trojan-Dropper.Win32.Sysn.cdjy CnC Activity"; flow:established,to_server; http.uri; content:".php?logik="; content:".txt&info=Time|3a|"; fast_pattern; http.user_agent; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; bsize:38; reference:md5,9842e0a710a5b820f6ceb687fa079721; classtype:command-and-control; sid:2031544; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_01_25, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2021_01_25;)