Re: SIP scanner sig

[Alex McDonnell <amcdonnell () sourcefire com>]

Hi YM.

we have rules that cover sipvicious, if those help. SIDS 27899-27904

thanks
Alex McDonnell
VRT


On Tue, Oct 1, 2013 at 11:17 AM, Y M <snort () outlook com> wrote:

> Caught this one live today. I can't share the pcap, sorry for that.
>
> alert udp $EXTERNAL_NET any -> $HOME_NET $SIP_PORTS (msg:"INDICATOR-SCAN
> Sipvicious SIP scanner detected"; flow:to_server; sip_method:options;
> content:"User-Agent|3A| friendly-scanner|0D0A|"; fast_pattern:only;
> content:"From|3A| |22|sipvicious|22|"; metadata:ruleset community;
> classtype:misc-activity; sid:100051; rev:1;)
>
> The sip_method may not be necessary to generalize the signature, any
> ideas? I can't download the scanner and verify at the moment.
>
> Thanks.
> YM
>
>
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