Snort mailing list archives

Re: Rawbytes needed?


From: Y M <snort () outlook com>
Date: Wed, 5 Feb 2014 19:38:44 +0000

Hi James,
 
How about using file_data? Also there is a missing pipe "|" at the end of the content pattern :).
 
YM
 
To: snort-sigs () lists sourceforge net
Date: Wed, 5 Feb 2014 11:34:42 -0700
From: jlay () slave-tothe-box net
Subject: [Snort-sigs] Rawbytes needed?

What say you all?

alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"MALWARE-CNC 
Win32/Asprox Variant Outbound Traffic"; flow:from_server, established; 
content:"|3c|html|3e 3c|body|3e|hi|21 3c 2f|body|3e 3c 2f|html|3e"; 
fast_pattern:only; 
reference:url,research.zscaler.com/2014/02/new-zbot-variant-goes-above-and-beyond.html; 
classtype:trojan-activity; sid:10000124; rev:1;)

Guessing html and body tags will get normalized yes?

James

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------------------------------------------------------------------------------
Managing the Performance of Cloud-Based Applications
Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
Read the Whitepaper.
http://pubads.g.doubleclick.net/gampad/clk?id=121051231&iu=/4140/ostg.clktrk
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