93 lines
3.3 KiB
Plaintext
93 lines
3.3 KiB
Plaintext
/**
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* This file is part of Rubanetra.
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* Copyright (C) 2013,2014 Stefan Swerk (stefan_rubanetra@swerk.priv.at)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import at.jku.fim.rubanetra.protocol.activity.*;
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import at.jku.fim.rubanetra.protocol.activity.tls.*;
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import at.jku.fim.rubanetra.protocol.activity.http.*;
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import at.jku.fim.rubanetra.protocol.activity.ip.*;
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import at.jku.fim.rubanetra.protocol.activity.icmp.*;
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import at.jku.fim.rubanetra.protocol.activity.dns.*;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import org.xbill.DNS.Record;
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import java.net.InetSocketAddress;
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import java.util.List;
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import java.util.Set;
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import java.util.HashSet;
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// using the MVEL expression language, see http://mvel.codehaus.org/
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dialect "mvel"
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/**
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* A logger that may be used for logging custom messages
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*/
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global org.slf4j.Logger log;
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// forward declaration
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declare DroolsBaseActivity
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end
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/**
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* This declaration defines an SpiderOak related Activity, consisting of DNS query/reply, client/server address/port
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* and the associated TlsActivity
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*/
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declare SpiderOakActivity extends DroolsBaseActivity
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@role( event )
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@author( Stefan Swerk )
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@timestamp( getStartTimestamp() )
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dnsAnswer : DnsActivity
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clientAddress : InetSocketAddress
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serverAddress : InetSocketAddress
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associatedTlsActivity : TlsActivity
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end
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/**
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* This rule is quite similar to the Dropbox tls traffic matching rule.
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* It looks for a DNS query to "*.spideroak.com" and gathers the relevant IP addresses for probing existing, yet unmatched
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* TlsActivities.
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*/
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rule "Spideroak TLS traffic based on DnsActivity"
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when
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$dnsReply : DnsActivity(isResponse(), !answerRecords.isEmpty(),
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$question : dnsMessage.question.name,
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$question.toString() matches ".*\\.spideroak.com\\.$")
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$tls : TlsActivity(this after[0s,10s] $dnsReply)
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exists( ARecord($address : getAddress(),
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$address!.getHostAddress() == $tls.getServerHello().getSourceAddress().getHostAddress())
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from $dnsReply.getAnswerRecords()
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or
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AAAARecord( $address : getAddress(),
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$address!.getHostAddress() == $tls.getServerHello().getSourceAddress().getHostAddress())
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from $dnsReply.getAnswerRecords()
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)
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then
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SpiderOakActivity spiderOakActivity = new SpiderOakActivity();
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spiderOakActivity.setDnsAnswer($dnsReply);
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spiderOakActivity.setClientAddress($tls.getClientHello().getSourceSocketAddress());
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spiderOakActivity.setServerAddress($tls.getServerHello().getSourceSocketAddress());
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spiderOakActivity.setAssociatedTlsActivity($tls);
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spiderOakActivity.replaceActivity($dnsReply);
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spiderOakActivity.replaceActivity($tls);
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insert(spiderOakActivity);
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end
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