Snort mailing list archives
Re: How to detect http response body
From: Y M <snort () outlook com>
Date: Thu, 3 Nov 2016 03:38:20 +0000
Whoops, I misread your original post. Yeah, client request body won't work in this case. In this case without a capture it would be difficult to tell what's going. YM On Thu, Nov 3, 2016 at 4:28 AM +0300, "Maxim" <hittlle () 163 com<mailto:hittlle () 163 com>> wrote: It's response body, not request body -- 发自我的网易邮箱手机智能版 在 2016-11-02 20:04:45,"Y M" <snort () outlook com> 写道: Have you tried using the content modifier "http_client_body"? Also, If the string constantly appears at fixed offset, you can further optimize with content modifiers "offset" and "depth". These are all part of the documentation. http://manual-snort-org.s3-website-us-east-1.amazonaws.com/node32.html#SECTION004511000000000000000 YM On Wed, Nov 2, 2016 at 2:14 PM +0300, "Maxim" <hittlle () 163 com<mailto:hittlle () 163 com>> wrote: Hi all, We came across a weird scenario. We used the following rule to detect http response body alert tcp any any -> $HOME_NET any ( sid: 10000003; file_data; content:"ASED"; nocase; rev:1; classtype: misc-activity;msg:"cve-test";) And we do see such a string in the response body, but snort did not trigger any alerts. Are we missing anything? Many thanks
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Current thread:
- How to detect http response body Maxim (Nov 02)
- Re: How to detect http response body Y M (Nov 02)
- Re: How to detect http response body Maxim (Nov 02)
- Re: How to detect http response body Y M (Nov 02)
- Re: How to detect http response body Maxim (Nov 02)
- Re: How to detect http response body Y M (Nov 02)