alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED Blackhole Landing Page Split String Obfuscated Math Floor - July 19th 2012"; flow:established,to_client; file_data; content:"=Math|3B|"; content:"[|22|f"; distance:0; content:"|22|+|22|"; within:15; content:"r|22|]"; within:12; classtype:trojan-activity; sid:2015519; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2012_07_24, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag Blackhole, tag Exploit_Kit, 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;)