Re: Can Snort detect a download file from internet?

[Russ via Snort-sigs <snort-sigs () lists snort org>]

Snort 3 can detect files using the default conf.  It is easy to 
configure capture, etc. as well.

https://github.com/snort3/snort3.git

On 5/21/18 9:06 PM, Antonio Leding wrote:
> For easy reference: https://www.snort.org/faq/readme-file
>
> > On May 21, 2018, at 6:04 PM, Joel Esler (jesler) <jesler () cisco com 
> > <mailto:jesler () cisco com>> wrote:
> >
> > Snort can extract files from the network in real time and write them 
> > out to disk.  Please see the email that Al sent earlier about the 
> > README.file
> >
> > Sent from my iPad
> >
> > On May 21, 2018, at 9:01 PM, Antonio Leding <tech () leding net 
> > <mailto:tech () leding net>> wrote:
> >
> > > One point of clarification - I have Snort firing off an alert about 
> > > the file being downloaded and then the packet capture + Wireshark 
> > > for the follow-on file extraction and analysis.
> > >
> > >
> > >
> > > > On May 21, 2018, at 5:50 PM, Antonio Leding <tech () leding net 
> > > > <mailto:tech () leding net>> wrote:
> > > >
> > > > Not sure if this helps or is relevant but I have always done this 
> > > > using full packet capture + Wireshark.  If there is a way to do 
> > > > this directly in Snort, I would be curious to hear…
> > > >
> > > >
> > > > > On May 21, 2018, at 5:48 PM, Hào Tài via Snort-sigs 
> > > > > <snort-sigs () lists snort org <mailto:snort-sigs () lists snort org>> 
> > > > > wrote:
> > > > >
> > > > > Can everyone help me to confirm this point: " Can the Snort detect 
> > > > > a file from the internet" ?
> > > > > If yes , how do we config the Snort the get the content file?
> > > > >
> > > > >
> > > > > On Sun, May 20, 2018 at 3:23 PM, Hào Tài <haotai1803 () gmail com 
> > > > > <mailto:haotai1803 () gmail com>> wrote:
> > > > >
> > > > >     Hello everyone,
> > > > >
> > > > >     I am a newbie about Snort. I try to write the snort rule to
> > > > >     catch a download JPG file from internet. Here is my rule:
> > > > >
> > > > >     >> alert tcp any any <> $HOME_NET any (msg:"JPEG";
> > > > >     content:"|FF D8 FF E0|"; sid:1000001)
> > > > >
> > > > >     But it does not work. Do I missing somethings or do I need to
> > > > >     config somethings for Snort?
> > > > >     Can everybody help me to find out the problem? Thank you.
> > > > >
> > > > >     Regards,
> > > > >     Tai Ly
> > > > >
> > > > >
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>
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