alert http $EXTERNAL_NET any -> $HOME_NET any (
msg:"ET WEB_CLIENT Injected iframe leading to Redkit Jan 02 2013";
flow:established,from_server;
file_data;
content:"iframe name=";
pcre:"/^[\r\n\s]*[\w]+[\r\n\s]+/R";
content:"scrolling=auto frameborder=no align=center height=2 width=2 src=http|3a|//"; within:71; fast_pattern;
pcre:"/^[^\r\n\s>]+\/[a-z]{4,5}\.html\>\<\/iframe\>/R";
classtype:exploit-kit;
sid:2016144; rev:4;
metadata:created_at 2013_01_03, signature_severity Major, updated_at 2022_03_17;
)