alert http $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET EXPLOIT MS-Officecmd Remote Code Execution Attempt"; flow:established,to_client; file.data; content:"ms-officecmd|3a|"; nocase; content:"LaunchOfficeAppForResult"; nocase; distance:0; fast_pattern; content:"filename"; nocase; distance:0; content:"|2d 2d|gpu|2d|launcher|3d|"; nocase; distance:0; reference:url,positive.security/blog/ms-officecmd-rce; classtype:attempted-user; sid:2034627; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_12_07, deployment Perimeter, confidence Medium, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_07, reviewed_at 2023_08_22, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)