alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Win32/RokRat CnC Activity (GET)";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"|2f|listfolder|3f|path|3d 2f|"; bsize:18; fast_pattern;
http.user_agent;
content:"Googlebot";
http.header;
content:"Authorization|3a 20|Bearer";
reference:url,research.checkpoint.com/2023/chain-reaction-rokrats-missing-link;
classtype:trojan-activity;
sid:2045277; rev:1;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_05_01, deployment Perimeter, deployment SSLDecrypt, malware_family Rokrat, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_01;
)