Re: Quick rebots sig

[James Lay <jlay () slave-tothe-box net>]

On Aug 27, 2012, at 9:27 AM, Joel Esler <jesler () sourcefire com> wrote:

> On Aug 27, 2012, at 11:15 AM, James Lay <jlay () slave-tothe-box net> wrote:
> > On 2012-08-27 09:08, lists () packetmail net wrote:
> > > Hey James, looking at the reference these aren't HREFs, they're 
> > > script tags,
> > > which tends to make more sense with what one would expect on an owned
> > > website.
> > > Would this be more valuable as:
> > >
> > > alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"COMMUNITY
> > > INDICATOR-COMPROMISE /rebots.php HTTP request in URI";
> > > flow:established,to_server; content:"/rebots.php"; http_uri;
> > > fast_pattern:only;
> > > reference:url,http://labs.sucuri.net/db/malware/mwjs-include-rebots;
> > > sid:x; rev:1;)
> > >
> > > Cheers,
> > > Nathan
> >
> >
> > Thanks Nathan...as usual you're cleaning up my messes...the above looks 
> > much better than mine :)
>
> We wouldn't put this in INDICATOR-COMPROMISE.  I'd probably put this in SPECIFIC-THREATS for now.  
> INDICATOR-COMPROMISE is saved for things things that indicate there is a successful compromise.
>
> alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"SPECIFIC-THREATS Possible malicious redirect - 
> rebots.php"; flow:to_server,established; content:"/rebots.php"; fast_pattern:only; http_uri; metadata:policy 
> balanced-ips drop, policy security-ips drop, service http; 
> reference:url,labs.sucuri.net/db/malware/mwjs-include-rebots; classtype:misc-activity; sid:24017; rev:1;)
>
> I've added it for release.
>
> Also, because I know Nathan will ask -- The Community ruleset tag is coming, it just got pushed back with the massive 
> ClamAV transition that happened last quarter.  Thanks!
>
>
> --
> Joel Esler
> Senior Research Engineer, VRT
> OpenSource Community Manager
> Sourcefire

Thanks gents….and I like your proactiveness Joel :D :D

James

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