Re: Logstash

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

On 2013-10-15 15:01, Jeremy Hoel wrote:
> We don't use the fast alert file, but 'output alert_syslog: 
> LOG_LOCAL6
> LOG_ALERT' and then pull them from out of the syslog via
>
>
> :msg, contains, "Priority: " action(type="omfile" 
> DirCreateMode="0755"
> FileCreateMode="0644" dynafile="snortlogs")
> :msg, regex, ".* [Pp]ortsweep" action(type="omfile"
> DirCreateMode="0755" FileCreateMode="0644" dynafile="snortlogs")
> :msg, regex, ".* [Pp]ortscan" action(type="omfile"
> DirCreateMode="0755" FileCreateMode="0644" dynafile="snortlogs")
>
>
> For logstash we have these lines:
>
> grok {
>     type => snort
>     pattern => "%{TIMESTAMP_ISO8601:syslog_timestamp}
> %{IPORHOST:device} snort\[%{INT:snort_pid}\]\:
> \[%{INT:gid}\:%{INT:sid}\:%{INT:rev}\] %{DATA:ids_alert}
> \[Classification\: %{DATA:ids_classification}\]\s+\[Priority\:
> %{INT:ids_priority}\] \{%{WORD:ids_alert_proto}\}
> %{IP:src_ip}(\:%{INT:src_port})? \-\>
> %{IP:dst_ip}(\:%{INT:dst_port})?$"
>     pattern => "%{TIMESTAMP_ISO8601:syslog_timestamp}
> %{IPORHOST:device} snort\[%{INT:snort_pid}\]\:
> \[%{INT:gid}\:%{INT:sid}\:%{INT:rev}\] PSNG_%{DATA:portscan_type}
> \[Classification\: %{DATA:ids_classification}\]\s+\[Priority\:
> %{INT:ids_priority}\] \{PROTO\:%{INT}\} %{IP:src_ip} \-\>
> %{IP:dst_ip}$"
>     pattern => "%{TIMESTAMP_ISO8601:syslog_timestamp}
> %{IPORHOST:device} %{GREEDYDATA:snort_the_rest}$"
>   }
>
>
> That might help or at least give you an idea.

That helps thank you...should be an interesting time :)

James

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