Re: Quick and dirty

[rmkml <rmkml () yahoo fr>]

Hi James,
Thx for sharing,
Maybe add file_data ?
Regards
Rmkml


On Wed, 30 Jan 2013, James Lay wrote:

> Matches latest malicious email campaign.  Clever person could mod this
> to detect outbound http, but I like to see it earlier than that:
>
> alert tcp $EXTERNAL_NET any -> $HOME_NET 25 (msg:"SPECIFIC-THREATS
> Blackhole exploit kit possible email track.php?fdic";
> flow:to_server,established; content:"href="; content:"http|3a 2f 2f|";
> content:"track.php?fdic"; within:50; metadata:policy balanced-ips drop,
> policy security-ips drop, service smtp; classtype:trojan-activity;
> sid:10000039; rev:5;)
>
>
> Email header snippet:
>
> Received: from  (192.168.1.184) by gregoro.de (82.77.113.102) with
> Microsoft SMTP Server id 8.0.685.24; Wed, 30 Jan 2013 16:18:01 +0200
> Message-ID: <510929DC.704090 () gregoro de>
> Date: Wed, 30 Jan 2013 16:18:01 +0200
> From: =?koi8-r?B?IvDB18XMLvHLz9fMxddAZmRpYy5nb3Yi?=
> .<cunningham () vlcreative com>
> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
> rv:1.9.2.12) Gecko/20101027 Thunderbird/3.1.6
> MIME-Version: 1.0
> To: <redacted>
>
> Subject: You are required to update your security system!
>
> James
>
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_jan
> _______________________________________________
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> Snort-sigs () lists sourceforge net
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> http://www.snort.org
>
>
> Please visit http://blog.snort.org for the latest news about Snort!

------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_d2d_jan
_______________________________________________
Snort-sigs mailing list
Snort-sigs () lists sourceforge net
https://lists.sourceforge.net/lists/listinfo/snort-sigs
http://www.snort.org


Please visit http://blog.snort.org for the latest news about Snort!