alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Likely Malvertising Malicious PE Download"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/adobe_flashplayer_7.exe"; fast_pattern; reference:md5,d9b91aa8c66c4a701f5558bdca805eec; reference:url,otx.alienvault.com/pulse/5637202b4637f2388aaec61c/; classtype:trojan-activity; sid:2022020; rev:4; metadata:created_at 2015_11_03, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_05;)