[Emerging-Sigs] 2018383 FPs

Korodev korodev at gmail.com
Thu Jan 9 04:06:32 HST 2020


Anyone else seeing lots of FPs on this Heartbleed sig?

alert tcp $HOME_NET any -> $EXTERNAL_NET
[21,25,110,143,443,465,587,636,989:995,5061,5222] (msg:"ET EXPLOIT
Possible OpenSSL? HeartBleed? Large HeartBeat? Response from Common
SSL Port (Outbound from Client)"; flow:established,from_client;
content:"|18 03|"; depth:2; byte_test:1,<,4,2; byte_test:2,>,150,3;
byte_test:2,<,17000,3; threshold:type limit,track by_src,count
1,seconds 120; metadata: former_category CURRENT_EVENTS;
reference:cve,2014-0160;
reference:url,blog.inliniac.net/2014/04/08/detecting-openssl-heartbleed-with-suricata/;
reference:url,heartbleed.com/;
reference:url,blog.fox-it.com/2014/04/08/openssl-heartbleed-bug-live-blog/;
classtype:bad-unknown; sid:2018383; rev:9; metadata:created_at
2014_04_11, updated_at 2014_04_11;)

\\korodev


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