alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Bandit Stealer Data Exfiltration Attempt"; flow:established,to_server; http.method; content:"PUT"; http.uri; content:"/upload/"; http.user_agent; content:"Go-http-client"; startswith; http.accept; content:"application/json"; http.content_type; content:"application/x-zip-compressed"; http.accept_enc; content:"gzip"; http.request_body; content:"PK"; startswith; content:"Screenshot-"; fast_pattern; within:70; reference:md5,b985f86091846026c4ea9b93d78e7524; reference:url,twitter.com/FalconFeedsio/status/1649641466300334081; classtype:trojan-activity; sid:2045866; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_25, deployment Perimeter, malware_family Bandit_Stealer, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_25; target:src_ip;)