alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Patcher/Bankpatch Module Download Request"; flow:established,to_server; content:"/dl/AcroIEHelpe"; nocase; http_uri; content:".dll"; http_uri; nocase; pcre:"/\/dl\/AcroIEHelpe(r)?(\d)?\.dll/U"; reference:url,www.symantec.com/security_response/writeup.jsp?docid=2008-081817-1808-99&tabid=2; classtype:trojan-activity; sid:2009409; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)