alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Suspicious Zipped Filename in Outbound POST Request (ccdata.txt) M2"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"Content-Disposition|3a 20|form-data|3b 20|name="; content:".zip|22 0d 0a|"; within:150; content:"|0d 0a|PK"; distance:0; content:"ccdata.txt"; distance:26; within:50; nocase; fast_pattern; classtype:trojan-activity; sid:2027272; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2019_04_23, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag T1005, tag Data_from_local_system, tag Collection, updated_at 2020_11_18;)