alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED 000Stealer Data Exfiltration M2"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/call?key="; bsize:42; http.header_names; content:"|0d 0a|Host|0d 0a|User-Agent|0d 0a|Content-Length|0d 0a|Content-Type|0d 0a|Accept-Encoding|0d 0a 0d 0a|"; bsize:69; http.request_body; content:"PK|03 04|"; byte_test:1,<=,20,0,relative; content:"ProcessList.txt"; fast_pattern; distance:0; content:"Screenshot.png"; distance:0; reference:md5,3f9c1455992239f4efe31f0e56773433; classtype:trojan-activity; sid:2036321; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_04_22, deployment Perimeter, former_category MALWARE, malware_family 000Stealer, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;)