alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET DELETED DRIVEBY Blackhole - Payload Download - scandsk.exe"; flow:established,from_server; content:"attachment|3b|"; http_header; content:"scandsk"; http_header; fast_pattern; within:20; content:".exe|0d 0a|"; http_header; distance:0; classtype:bad-unknown; sid:2014440; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Any, attack_target Client_Endpoint, created_at 2012_03_28, deployment Perimeter, malware_family Blackhole, signature_severity Critical, tag DriveBy, tag Blackhole, tag Exploit_Kit, updated_at 2020_08_20;)