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SID: 2018433 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 2Apr 30, 2014, 12:00 PM

ET HUNTING SUSPICIOUS Possible automated connectivity check (www.yahoo.com)

alert tcp $HOME_NET any -> $EXTERNAL_NET 80 (msg:"ET HUNTING SUSPICIOUS Possible automated connectivity check (www.yahoo.com)"; flow:established,to_server; dsize:39; content:"GET / HTTP/1."; content:"|0d 0a|Host|3a 20|www.yahoo.com|0d 0a 0d 0a|"; distance:1; within:25; fast_pattern; threshold:type limit, count 1, seconds 300, track by_src; classtype:bad-unknown; sid:2018433; rev:2; metadata:affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2014_04_30, deployment Perimeter, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2022_03_17, reviewed_at 2024_03_06;)

Apr 30, 2014, 12:00 PM

Mar 17, 2022, 12:00 PM

Sep 21, 2024, 3:00 AM

May 30, 2025, 12:04 AM

rules/emerging-hunting.rules