alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET INFO maas.io Image Download Flowbit Set";
flow:established,to_server;
flowbits:set,ET.Maas.Site.Download;
flowbits:noalert;
http.method;
content:"GET";
http.user_agent;
content:"maas/2.3.";
http.host;
content:"images.maas.io";
classtype:not-suspicious;
sid:2026747; rev:4;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_01_02, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_19;
)