alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE Maldoc Downloading from Dropbox via API";
flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/2/files/download";
http.header;
content:"Authorization|3a 20|Bearer|20|FLtUsbS3oqcAAAAAAAAAAZ_86BAKGkKPNHeBSV8ETDcqFjlDgagrviCEw0VV6Ecn|0d 0a|";
content:"/Energy/staging/debugps"; fast_pattern;
http.host;
content:"content.dropboxapi.com"; bsize:22;
reference:url,twitter.com/ShadowChasing1/status/1407540607954743297;
reference:md5,f123a68eea92b34d76f0ca0b677419bd;
classtype:trojan-activity;
sid:2033170; rev:1;
metadata:attack_target Client_Endpoint, created_at 2021_06_23, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_23;
)