alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Suspicious Zipped Filename in Outbound POST Request (cookies.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:"cookies.txt"; distance:26; within:50; nocase; fast_pattern; classtype:trojan-activity; sid:2027104; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_03_20, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Stealer, updated_at 2020_11_18;)