alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Bitter APT Activity - Secondary Payload Retrieval Attempt"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/dxl.php?bb|3d|"; fast_pattern; http.user_agent; content:"curl/"; reference:url,infosec.exchange/@ginkgo/112047866464514906; reference:md5,10f4479d5f531def842a712277ae9611; classtype:trojan-activity; sid:2051515; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_06, deployment Perimeter, malware_family Bitter_APT, performance_impact Low, confidence High, signature_severity Major, tag Bitter_APT, updated_at 2024_03_06; target:src_ip;)