core intel

Core Intel

Krzysztof Adamski, Krzysztof Żmij

On the bank secret service

Are security breaches common?

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/432412/bis-15-302-information_security_breaches_survey_2015-full-report.pdf

Carbanak

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https://securelist.com/blog/research/68732/the-great-bank-robbery-the-carbanak-apt/

Core Intel is a part of ING Cyber Crime Resilience Programme to structurally improve the capabilities for the cybercrime

• prevention• detection and the • response

CoreIntel

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• Measures against e-banking fraud, DDoS and Advanced Persistent Threats (APTs).

• Threat intelligence allow to respond to, or even prevent, a cybercrime attack • (This kind of intelligence is available via internal and external parties and

includes both open and closed communities)• Monitoring, detection and response to “spear phishing”• Detection/mitigation of infected ING systems’ • Baselining network traffic/anomaly detection• Response to incidents (knowledge, tools, IT environment)• Automated feeds, automated analysis and historical data analysis

The reasoning

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The world is not enough

So the challenge is…

Market leaders Benelux

Growth marketsCommercial Banking

Challengers

Most of our data is within Europe

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Market leaders Benelux

Growth marketsCommercial Banking

Challengers

but we operate globally

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Expect the unexpected to collect all the data

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• What kind of data do we need?• Where is our data located?• How we can potentially capture it?• What are the legal implications?

So there is a challenge to capture „all” the data

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Core Intel architecture

So what you would like to see is…

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…In fact it is slightly more complicated

All has its own purpose. Let’s see in details.

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Local data collector

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But tell how to capture that data

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https://observer.viavisolutions.com/includes/popups/taps/tap-vs-span.php

Broker settings:Replication factor >= 3min.insync.replicas = 2unclean.leader.election.enable = falsereplica.lag.time.max.ms

Producer settings:acks = allretries = Integer.MAX_VALUEmax.block.ms = Long.MAX_VALUEblock.on.buffer.full = true

To have data in ordermax.in.flight.requests.per.connection = 1

Kafka producer configuration (as we don’t like losing data)

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Central data collector

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Time is crucial here

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But your business data more, so proceed with caution

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• Network bandwidth control• quota.consumer.default• quota.producer.default

Kafka mirror maker configuration

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Secure data:listeners=SSL://host.name:portssl.client.auth=requiredssl.keystore.locationssl.keystore.passwordssl.key.passwordssl.truststore.locationssl.truststore.password

Kafka mirror maker configuration

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Secure data in transit

Streaming data

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spark.yarn.maxAppAttemptsspark.yarn.am.attemptFailuresValidityIntervalspark.yarn.max.executor.failuresspark.yarn.executor.failuresValidityIntervalspark.task.maxFailuresspark.hadoop.fs.hdfs.impl.disable.cachespark.streaming.backpressure.enabled=truespark.streaming.kafka.maxRatePerPartition

Spark on yarn streaming configuration

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In memory data grid

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val rddFromMap = sc.fromHazelcastMap("map-name-to-be-loaded")

Let’s find something in these logs

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Matching

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Tornado - a Python web framework and asynchronous networking library - http://www.tornadoweb.org/MessagePack – binary transport formathttp://msgpack.org/

• Automatically & continually match network logs <->threat intel • When new threat intel arrives, against full history network logs• When new network logs arrive, against full history threat intel• Alerts are shown in a hit dashboard• Dashboard is a web-based interfaces that provide flexible charts, querying,

aggregation and browsing • Quality/relevance of an alert is subject to the quality of IoC feeds and

completeness of internal log data.

Hit, alerts and dashboards

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Be smart with your tooling

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and leverage e.g. elasticsearch templates

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Data mapping: - doc_value - fielddata - fields

Cluster settings to check:gateway.recover_after_nodesgateway.recover_after_master_nodesgateway.recover_after_data_nodesindices.recovery.max_bytes_per_secindices.breaker.total.limitindices.breaker.fielddata.limit

Elasticsearch configuration

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For those who know how to use heavy equipment

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Long data storage - HDFS

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Kafka offset management

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Core Intel allows users to perform advanced analytics on network logs using a set of powerful tools

• Spark API to write code to process large data sets on a cluster• perform complex aggregations to collect interesting statistics• run large scale clustering algorithms with Spark’s MLLib• run graph analyses on network logs using Spark’s GraphX• transform and extract data for use in another system (which are better for specific

analytics or visualization purposes)• Kafka, co you can write own Consumers and Producers to work with your data• to perform streaming analysis on your data• to implement your own alerting logic

• Toolset• Programming languages: Scala, Java, Python• IDE’s: Eclipse / Scala IDE, IPython Notebook and R Studio

Advanced analytics

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How do we schedule the jobs

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How to keep everything under control

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Monitoring crucial points in your data pipeline

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Something for smart guys

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Plenty of data to analyze

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Upcoming challenges on the operations side

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Shaken, not stirred?

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