alert http $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"ET EXPLOIT US-ASCII Obfuscated VBScript"; flow:established,from_server; content:"US-ASCII"; nocase; pcre:"/[\xf6\xd6][\xe2\xc2][\xf3\xd3][\xe3\xc3][\xf2\xd2][\xe9\xc9][\xf0\xd0][\xf4\xd4]/"; reference:url,www.internetdefence.net/2007/02/06/Javascript-payload; reference:cve,2006-3227; reference:url,www.securityfocus.com/archive/1/437948/30/0/threaded; classtype:web-application-attack; sid:2003403; rev:4; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information;)