alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE IceRat CnC Acitivty M2"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/execuser.php?login="; startswith; fast_pattern; content:"&pass="; content:"&user="; http.user_agent; content:"Java/"; startswith; reference:url,malwaretips.com/threads/jphp-icerat-analysis.105233/; reference:md5,5e864667d91e3867a29df90dbcadb6b2; classtype:command-and-control; sid:2031487; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_01_06, deployment Perimeter, malware_family IceRAT, confidence High, signature_severity Major, updated_at 2021_01_06;)