Rule History

SID: 2017195 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 3 • Jul 25, 2013, 12:00 PM

Message:

ET WEB_CLIENT c0896 Hacked Site Response Hex (Inbound)

Rule:

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT c0896 Hacked Site Response Hex (Inbound)"; flow:established,to_client; file_data; content:"0c0896"; fast_pattern; content:"="; distance:0; pcre:"/^[^\x22\x27\x3b]*?[\x22\x27](?P<space>[a-f0-9]{2})(?P<sep>[^0-9a-f])(?P<f>[a-f0-9]{2})(?P=sep)[a-f0-9]{2}(?P=sep)(?P<n>(?!(?P=f))[a-f0-9]{2})(?P=sep)([a-f0-9]{2}(?P=sep)){4}(?P=n)(?P=sep)(?P=space)(?P=sep)(?P<z>(?!((?P=f)|(?P=n)))[a-f0-9]{2})(?P=sep)(?P=z)(?P=sep)(?P=z)(?P=sep)(?P=f)(?P=sep)(?P=f)(?P=sep)(?P=f)/R"; classtype:trojan-activity; sid:2017195; rev:3; metadata:created_at 2013_07_25, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Jul 25, 2013, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Jul 25, 2013, 12:00 PM

DB Updated:

Oct 13, 2025, 9:34 PM

Filename:

rules/emerging-web_client.rules