alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Dridex Download June 10 2015"; flow:established,to_client; http.header; content:"filename=|22|crypted.120.exe|22|"; nocase; classtype:trojan-activity; sid:2021244; rev:3; metadata:created_at 2015_06_11, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_02_23;)