Snort mailing list archives
Re: [Emerging-Sigs] Linux/CDorked sig
From: Will Metcalf <wmetcalf () emergingthreatspro com>
Date: Fri, 26 Apr 2013 13:03:26 -0500
Thanks James, can probably limit to a-f0-9 on your char class and probably want a \. match after to ensure it is exactly this and not something like somethinglongerthan16charsaaaaaaaaa.foo.bar could also anchor the match to a Location header. Nice sig... Will get something into QA and out today based on this thanks! Regards, Will On Fri, Apr 26, 2013 at 12:04 PM, James Lay <jlay () slave-tothe-box net>wrote:
Enjoy: alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"INDICATOR-COMPROMISED Linux/CDorked redirect"; flow:from_server,established; file_data; content:"index.php?j="; http_header; content:"302"; http_stat_code; pcre:"/http\x3a\x2f\x2f[0-9a-* *z]{16}/m"; metadata:policy balanced-ips drop, policy security-ips drop, service http; reference:url,http://blog.**sucuri.net/2013/04/apache-** binary-backdoors-on-cpanel-**based-servers.html<http://blog.sucuri.net/2013/04/apache-binary-backdoors-on-cpanel-based-servers.html>; classtype:trojan-activity; sid:10000049; rev:1;) Ok Joel....how much cleanup is needed with this ;) James ______________________________**_________________ Emerging-sigs mailing list Emerging-sigs@lists.**emergingthreats.net<Emerging-sigs () lists emergingthreats net> https://lists.emergingthreats.**net/mailman/listinfo/emerging-**sigs<https://lists.emergingthreats.net/mailman/listinfo/emerging-sigs> Support Emerging Threats! Subscribe to Emerging Threats Pro http://www.emergingthreatspro.**com <http://www.emergingthreatspro.com> The ONLY place to get complete premium rulesets for all versions of Suricata and Snort 2.4.0 through Current!
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Current thread:
- Linux/CDorked sig James Lay (Apr 26)
- Re: [Emerging-Sigs] Linux/CDorked sig Will Metcalf (Apr 29)
- Re: [Emerging-Sigs] Linux/CDorked sig Rodrigo Montoro(Sp0oKeR) (Apr 26)
- Re: [Emerging-Sigs] Linux/CDorked sig Will Metcalf (Apr 29)
- Re: [Emerging-Sigs] Linux/CDorked sig Will Metcalf (Apr 29)
- Re: [Emerging-Sigs] Linux/CDorked sig Rodrigo Montoro(Sp0oKeR) (Apr 26)
- Re: [Emerging-Sigs] Linux/CDorked sig Will Metcalf (Apr 29)