alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE CloudAtlas APT Maldoc Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".dotm"; endswith; http.host; content:"checklicensekey.com"; fast_pattern; bsize:19; reference:url,twitter.com/h2jazi/status/1453748348964548617; reference:md5,1060678d61ea5152283be60df2472b6f; classtype:trojan-activity; sid:2034284; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_10_28, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_28;)