alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET RETIRED PennyWise Stealer Data Exfil M1"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/getfile"; bsize:8; http.header_names; content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|Expect|0d 0a|Connection|0d 0a 0d 0a|"; bsize:60; http.request_body; content:"*PennyWise v"; fast_pattern; content:"*Browsers:*"; distance:0; content:"*Wallets:*"; distance:0; content:"*YouTube:*"; distance:0; content:"*Grabber:*"; distance:0; content:"PK|03 04|"; distance:0; byte_test:1,<=,20,0,relative; content:"Information.txt"; distance:0; reference:md5,6aa187bd65ee038e2e8c895a0b6a2977; classtype:trojan-activity; sid:2036597; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_05_16, deployment Perimeter, former_category MALWARE, malware_family pennywise_stealer, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_12, reviewed_at 2024_09_12;)