alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Grandoreiro Sending System Information (POST)"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php?MD="; fast_pattern; content:"&OUT="; distance:0; content:"&SO="; distance:0; content:"&AV="; distance:0; content:"&PC="; distance:0; http.header_names; content:!"Referer"; http.user_agent; content:"|28|compatible|3b 20|Clever|20|Internet|20|Suite|29|"; endswith; reference:md5,9b1160a7c9a6b94effe25fd4e04797d3; reference:url,twitter.com/ankit_anubhav/status/1555478491667107840; reference:url,www.zscaler.com/blogs/security-research/grandoreiro-banking-trojan-new-ttps-targeting-various-industry-verticals; classtype:trojan-activity; sid:2038618; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, malware_family Grandoreiro, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_27, reviewed_at 2024_12_02;)