alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Polonium CreepyDrive Download Request"; flow:established,to_server; http.method; content:"GET"; http.host; content:"graph.microsoft.com"; startswith; http.uri; content:"/v1.0/me/drive/root|3a|/Downloaded/"; startswith; fast_pattern; content:"|3a|/content"; endswith; reference:url,microsoft.com/security/blog/2022/06/02/exposing-polonium-activity-and-infrastructure-targeting-israeli-organizations/; classtype:trojan-activity; sid:2036828; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_03, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_06_03;)