Re: FP 17246

["Weir, Jason" <jason.weir () nhrs org>]

I meant Registered-user - sorry...

-----Original Message-----
From: Weir, Jason [mailto:jason.weir () nhrs org] 
Sent: Thursday, October 14, 2010 11:08 AM
To: snort-sigs () lists sourceforge net
Subject: Re: [Snort-sigs] FP 17246


Is it correct that Certified users will have to wait 30 days before we
see this change?

-J

-----Original Message-----
From: Nigel Houghton [mailto:nhoughton () sourcefire com] 
Sent: Thursday, October 14, 2010 11:00 AM
To: Lay, James
Cc: snort-sigs () lists sourceforge net
Subject: Re: [Snort-sigs] FP 17246



Current revision of this rule is 3. Also, it now resides in 
deleted.rules.

On Thu, 14 Oct 2010 08:43:06 -0600, Lay, James wrote:
> Rule hit:
> 10/14-08:38:47.457462  [**] [1:17246:1] SPECIFIC-THREATS Multiple 
> vendor Antivirus magic byte detection evasion attempt [**]
> [Classification: Attempted User Privilege Gain] [Priority: 1] {TCP}
> 209.85.225.148:80 -> external_IP:61121
>  
> Rule:
> :alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any 
> (msg:"SPECIFIC-THREATS Multiple vendor Antivirus magic byte detection 
> evasion attempt"; flow:established,to_client; 
> content:"Content|2D|Type|3A 20|text|2F|html"; nocase; http_header; 
> pcre:"/\x0D\x0A?(MZ|PK|BZh|BZ|GIF8|BM|IC|PI|CI|CP)/"; metadata:policy 
> balanced-ips drop, policy security-ips drop, service http; 
> reference:cve,2005-3370; reference:cve,2005-3371; 
> reference:cve,2005-3372; reference:cve,2005-3373; 
> reference:cve,2005-3374; reference:cve,2005-3375; 
> reference:cve,2005-3376; reference:cve,2005-3377; 
> reference:cve,2005-3378; reference:cve,2005-3379; 
> reference:cve,2005-3380; reference:cve,2005-3381; 
> reference:cve,2005-3382; classtype:attempted-user; sid:17246; rev:1;)
>  
> Packet dump:
> 08:39:10.499895 IP 209.85.225.148.80 > 66.193.105.132.61121: Flags 
> [P.], ack 721, win 9648, length 204
>         0x0000:  4500 00f4 e376 0000 3906 3e5e d155 e194
E....v..9.>^.U..
>         0x0010:  42c1 6984 0050 eec1 18f5 f9bc 5329 87af
B.i..P......S)..
>         0x0020:  5018 25b0 637e 0000 4854 5450 2f31 2e31
P.%.c~..HTTP/1.1
>         0x0030:  2032 3030 204f 4b0d 0a43 6f6e 7465 6e74
.200.OK..Content
>         0x0040:  2d54 7970 653a 2069 6d61 6765 2f67 6966
-Type:.image/gif
>         0x0050:  0d0a 5072 6167 6d61 3a20 6e6f 2d63 6163
..Pragma:.no-cac
>         0x0060:  6865 0d0a 4361 6368 652d 436f 6e74 726f
he..Cache-Contro
>         0x0070:  6c3a 206e 6f2d 6361 6368 650d 0a43 6f6e
l:.no-cache..Con
>         0x0080:  7465 6e74 2d4c 656e 6774 683a 2034 330d
tent-Length:.43.
>         0x0090:  0a44 6174 653a 2054 6875 2c20 3134 204f
.Date:.Thu,.14.O
>         0x00a0:  6374 2032 3031 3020 3134 3a33 393a 3132
ct.2010.14:39:12
>         0x00b0:  2047 4d54 0d0a 5365 7276 6572 3a20 4746
.GMT..Server:.GF
>         0x00c0:  452f 322e 300d 0a0d 0a47 4946 3839 6101
E/2.0....GIF89a.
>        0x00d0:  0001 0080 0100 0000 00ff ffff 21f9 0401
............!...
>         0x00e0:  0000 0100 2c00 0000 0001 0001 0000 0202
....,...........
>         0x00f0:  4c01 003b                                L..;
>  
> Looks like a .gif from google....
>  
> James


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_____________________________________________________________________________________________

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------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1,  ECMAScript5, and DOM L2 & L3.
Spend less time writing and  rewriting code and more time creating great
experiences on the web. Be a part of the beta today.
http://p.sf.net/sfu/beautyoftheweb
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