alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Suspicious rundll32.exe in URI"; flow:established,to_server; urilen:<100; http.method; content:"GET"; http.uri; content:"/rundll32.exe"; nocase; fast_pattern; endswith; reference:md5,ea3dec87f79ff97512c637a5c8868a7e; classtype:bad-unknown; sid:2016703; rev:15; metadata:created_at 2013_04_02, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_17, reviewed_at 2024_04_22;)