SplunkLive Melbourne Splunk for Operational Security Intelligence

Copyright©2016SplunkInc.

SplunkforOperationalSecurityIntelligence

SplunkLiveMelbourne2016JamesOverman,Sr SE

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> James Overman [email protected]

• Splunk Sales Engineer• Over 20 years in IT infrastructure & security

• CISSP • Worked for leading security integrators and vendors

whoami

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LEGALNOTICEDuringthecourseofthispresentation,wemaymakeforward-lookingstatementsregardingfutureeventsortheexpectedperformanceofthecompany.Wecautionyouthatsuchstatementsreflectourcurrentexpectations and estimates basedonfactorscurrentlyknowntousandthatactualeventsorresultscoulddiffermaterially.Forimportantfactorsthatmaycauseactualresultstodifferfromthosecontainedinourforward-lookingstatements,pleasereviewourfilings withtheSEC. Theforward-lookingstatementsmadeinthispresentationarebeingmadeasofthetimeanddateofitslivepresentation. If reviewedafter itslivepresentation, thispresentationmaynotcontaincurrentoraccurateinformation. Wedonotassumeanyobligationtoupdateanyforward-lookingstatementswe maymake. Inaddition,anyinformationaboutour roadmapoutlinesourgeneralproductdirectionandissubjecttochangeatanytimewithout notice.It isforinformationalpurposesonlyandshallnot beincorporatedintoanycontractorothercommitment.Splunkundertakesnoobligationeithertodevelopthefeaturesorfunctionalitydescribed ortoincludeanysuchfeatureorfunctionality inafuturerelease.

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Agenda

SplunkSecurityOverview

ThreatIntelligence(vialookups)

TheCommoninformationmodel

TacklingAdv.Windowsattacks via6EventIDs

"Bestof"Securityrelatedsplunkbaseapps

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AdvancedThreatsAreHardtoFind

CyberCriminals

NationStates

InsiderThreats

Source:MandiantM-Trends Report2012/2013/2014

100%Validcredentialswereused

40Average#ofsystems accessed

229Median#ofdaysbeforedetection

67%Ofvictimswerenotified byexternalentity

Newapproachtosecurityoperationisneeded

• Humandirected

• Goal-oriented

• Dynamic(adjusttochanges)

• Coordinated

• Multiple tools&activities

• Newevasiontechniques

• Fusionofpeople,process,&technology

• Contextualandbehavioral

• Rapidlearningandresponse

• Shareinfo&collaborate

• Analyzealldataforrelevance

• LeverageIOC&ThreatIntel

THREAT AttackApproach SecurityApproach

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TECHNOLOGY

PEOPLE

PROCESS

NewapproachtosecurityoperationisneededTHREAT AttackApproach

Analytics-drivenSecurity

SecurityApproach

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TECHNOLOGY

PEOPLE

PROCESS

• Humandirected

• Goal-oriented

• Dynamic(adjusttochanges)

• Coordinated

• Multiple tools&activities

• Newevasiontechniques

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AllDataisSecurityRelevant=BigData

Servers

Storage

DesktopsEmail Web

TransactionRecords

NetworkFlows

DHCP/DNS

HypervisorCustomApps

PhysicalAccess

Badges

ThreatIntelligence

Mobile

CMDB

IntrusionDetection

Firewall

DataLossPrevention

Anti-Malware

VulnerabilityScans

Traditional

Authentication

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SplunkSolutions

VMware

PlatformforMachineData

Exchange PCISecurity

AcrossDataSources,UseCasesandConsumptionModels

ITSvcInt

SplunkPremiumSolutions EcosystemofApps

ITSI UBA

UBA

MainframeData

RelationalDatabases

MobileForwarders Syslog/TCP IoTDevices

NetworkWireData

Hadoop&NoSQL

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PutitAllTogether– SecurityMaturityLevelq APTdetection/hunting(killchainmethod)q Counterthreatautomationq ThreatIntelligence aggregation(internal&external)q Frauddetection – ATO,account abuse,q Insiderthreatdetection

q ReplaceSIEM@lowerTCO,increasematurityq AugmentSIEM@increasecoverage&agilityq Compliancemonitoring,reporting,auditingq Logretention,storage,monitoring,auditing

q Continuousmonitoring/evaluationq Incidentresponseandforensicinvestigationq Eventsearching,reporting,monitoring&correlationq Rapidlearningloop,shortendiscover/detect cycleq Rapidinsightfromalldata

q Fraudanalystq Threatresearch/Intelligenceq Malwareresearchq CyberSecurity/Threat

q SecurityAnalystq CSIRTq Forensicsq Engineering

q Tier1Analystq Tier2Analystq Tier3Analystq Audit/Compliance

SecurityOperationsRoles/Functions

Reactive

Proactive

Searchand

Investigate

ProactiveMonitoringandAlerting

SecuritySituationalAwareness

Real-timeRiskInsight

Fraud Detection

Insider Threat

Advanced Threat

Detection

Security & Compliance Reporting

Incident Analysis & Investigations

Real-time Monitoring & Alerting

Security Intelligence Use Cases

Splunk provides solutions that address SIEM use cases and more

Security & Compliance Reporting

Incident Analysis & Investigations

Real-time Monitoring & Alerting

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ExampleofAdvancedThreatActivities

HTTP(web)session tocommand &controlserver

Remotecontrol,Stealdata,Persistincompany,Rentasbotnet

WEB

ConductBusiness

Createadditionalenvironment

GainAccesstosystemTransaction

.pdf

.pdf executes& unpacksmalwareoverwritingandrunning“allowed”programs

Svchost.exeCalc.exe

AttackerhackswebsiteSteals.pdf files

WebPortal

.pdf

Attackercreatesmalware,embed in.pdf,

Emailstothetarget MAIL

Reademail,open attachment

Threatintelligence

Auth - UserRoles

HostActivity/Security

NetworkActivity/Security

Aug0806:09:13acmesep01.acmetech.comAug0906:17:24SymantecServeracmesep01:Virusfound,Computername:ACME-002,Source:RealTimeScan,Riskname:Hackertool.rootkit,Occurrences: 1,C:/DocumentsandSettings/smithe/LocalSettings/Temp/evil.tmp,"""",Actualaction:Quarantined,Requestedaction:Cleaned,time:2009-01-2303:19:12,Inserted: 2009-01-2303:20:12,End:2009-01-2303:19:12,Domain: Default,Group:MyCompany\ACMERemote,Server:acmesep01,User:smithe,Sourcecomputer:,SourceIP:10.11.36.20

Aug0808:26:54snort.acmetech.com{TCP}10.11.36.20:5072 ->10.11.36.26:443 itsecsnort[18774]:[1:100000:3] [Classification:PotentialCorporatePrivacyViolation]CreditCardNumberDetectedinClearText[Priority:2]:

20130806041221.000000Caption=ACME-2975EB\Administrator Description=Built-inaccountforadministeringthecomputer/domainDomain=ACME-2975EBInstallDate=NULLLocalAccount= IP:10.11.36.20TrueName=AdministratorSID=S-1-5-21-1715567821-926492609-725345543500SIDType=1Status=Degradedwmi_type=UserAccounts

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Monitoring&AlertingSources

Allthreeoccurringwithina24-hourperiod

ExampleCorrelation– DataLoss

SourceIP

SourceIP

SourceIPDataLoss

DefaultAdminAccount

MalwareFound

TimeRange

IntrusionDetection

EndpointSecurity

WindowsAuthentication

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JobContinues– NeedtoPerformIncidentInvestigation

Creditcardtransmitted

Adminaccountused

Hackertoolfound

EndpointSecurity

IntrusionDetection

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IncidentAnalysis&Investigation

• Ofteninitiatedbyanalertinanotherproduct

• Investigationrequiringrapidadhocsearchingacrossdataovertime

• Needalltheoriginaldatainoneplaceandafastwaytosearchittoanswer:– Whathappened andwasitafalsepositive?

– Howdidthethreatgetin,wherehavetheygoneanddidtheystealanydata?

– Hasthisoccurredelsewhereinthepast?

• Takeresultsandturnthemintoareal-timesearch/alertifneeded

client=unknown[99.120.205.249]<160>Jan 2616:27(cJFFNMS

DHCPACK=ASCII from host=85.196.82.110

truncating integer value > 32 bits <46>JanASCII from client=unknown

January February March April

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UseSplunktoFindEvidence

Searchhistorically- backintime Watchfornewevidence

Relatedevidencefromothersecuritydevices

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UseSplunktoLinkEventsTogether

Malwaredownload

BlacklistedIP

Malwareexecutionandinstallation

Maliciouscommunication

Threatintelligence

Auth - UserRoles,CorpContext



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AdvancedThreatDetection&Response

WEB

ConductBusiness

Createadditionalenvironment

GainAccesstosystemTransaction

MAIL

.pdf Svchost.exeCalc.exe

Eventsthatcontainlinktofile

ProxylogC2communicationtoblacklist

Howwasprocess started?

Whatcreatedtheprogram/process?

ProcessmakingC2traffic

WebPortal.pdf

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Connectthe“Data-Dots”toSeetheWholeStory

Persist,Repeat

Threatintelligence




Attacker,knowrelay/C2sites,infectedsites,IOC, attack/campaignintentandattribution

Wheretheywentto,whotalkedtowhom,attacktransmitted,abnormaltraffic,malwaredownload

Whatprocessisrunning(malicious,abnormal,etc.)Processowner,registrymods,attack/malwareartifacts,patchinglevel,attacksusceptibility

Accesslevel,privilegedusers,likelihoodofinfection,wheretheymightbeinkillchain

Delivery,ExploitInstallation

GainTrustedAccess

ExfiltrationDataGatheringUpgrade(escalate)Lateralmovement

Persist,Repeat

• Third-partyThreatIntel• Opensourceblacklist• Internalthreatintelligence

• Firewall• IDS/IPS• Vulnerabilityscanners

• WebProxy• NetFlow• Network

• Endpoint (AV/IPS/FW)• Malwaredetection• PCLM

• DHCP• OSlogs• Patching

• ActiveDirectory• LDAP• CMDB

• OperatingSystem• Database• VPN,AAA, SSO

Threatintelligence




Command&ControlExploitation&InstallationDelivery

MAIL WEB WEB FW

AccomplishMission

Connectthe“Data-Dots”toSeetheWholeStory

phishing

Downloadfrominfectedsite

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2

5

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Identity,Roles,Privileges, Location,Behavior,Risk,Auditscope, Classification, etc.

ThreatIntelligenceData

EmailDataOr

WebData

HostorETDRData

WeborFirewallData

ThreatIntelligenceData

IdentityData

Threatintelligence




Command&ControlExploitation&InstallationDelivery

MAIL WEB WEB FW

AccomplishMission

StartAnywhere,AnalyzeUp-Down-Across-Backwards-Forward

phishing

Downloadfrominfectedsite

1

2

5

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Identity,Roles,Privileges, Location,Behavior,Risk,Auditscope, Classification, etc.

• Third-PartyThreatIntel• Opensourceblacklist• Internalthreatintelligence

• Firewall• IDS/IPS• Vulnerabilityscanners

• WebProxy• NetFlow• Network

• Endpoint(AV/IPS/FW)• Malwaredetection• PCLM

• DHCP• OSlogs• Patching

• ActiveDirectory• LDAP• CMDB

• OperatingSystem• Database• VPN,AAA, SSO

Threatintelligence



Command&ControlExploitation&InstallationDelivery AccomplishMission

SecurityEcosystemforCoverageandProtection



ThreatIntelligence

24AttackMap

TheChallenge:• IndustrysaysThreatIntelis

keytoAPTProtection• Managementwantsall

threatintelcheckedagainsteverysystem,constantly

• Don’t forgettokeepyour15+threatfeedsupdated

TheSolution:

Verizon2016DBIR

“…thepercentageofindicatorsuniquetoonlyone(outbound

destination)feed…isnorthof97%forthefeedswehavesampled…”

Threatlistaggregation=morecompleteintelligence

MOREABOUTDATAMODELS?

So…youhavealist?

Whatcanyoudowithit?

Souretype=access_combined clientip=*|lookup threatlist srcip asclientip OUTPUTsrcip assrcip threat_typeasthreat_type |statscountbyclientip srcip threat_type |whereclientip=srcip

Breakitdownbytime?

Sendmeanalert!


Demo

Otheroptions?

• YoucoulduseSA-Splice fromsplunkbase• Usecorrelationsearchestopopulatelookup files - outputlookup• LeverageKVstorelookups• EnterpriseSecurity

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Variouscommunitythreatlists

Localones too

TAXIIsupport


Thecommoninformationmodel

Datacomesfrom…

YoucanactuallydothisintheSplunksandbox, ifyouwant.

DataIngest+CommonInformationModel● You’vegotabunchofsystems…● Howtobringin:● NetworkAV● Windows+OSXAV● PCI-zoneLinuxAV● NetworkSandboxing● APTProtection

● CIM=DataNormalization


NORMALIZATION?!?


NORMALIZATION?!?

Relax.Thisis

therefore,CIMgetsappliedatSEARCHTIME.

DataNormalizationisMandatoryforyourSOC

“Theorganizationconsumingthedatamustdevelopandconsistently

useastandardformatforlognormalization.”– JeffBollingeret.

al.,CiscoCSIRT

Yourfieldsdon’tmatch?Goodluckcreatinginvestigativequeries

Free.Supported.Fullydocumented.

Lotsofappssupport CIM.

CIMCompliant!

Click“Datamodels”undersettings

• Tstats cansearchdistributed .tsidx files

• Usethesearchterm– FROMdatamodel=<datamodelname>

• Forexample:• |tstatsavg(foo)FROM

datamodel=buttercup_games WHEREbar=valuex

• Youshould expectdramaticallyfastersearchresultsusingthismethod

Tstatsand/orpivot– usethem!


Demo


Windowsevents


Securityapps

• EasilythemostunderratedapponSplunkbase

• Turneveryhostonyournetworkintoanetworksniffer!

• Rapidlyrespond tosecurityeventsbycapturingdataatthesource

• Highlyconfigurabletocaptureonlydataofinterest


Demo

http://blogs.splunk.com/2015/10/01/random-words-on-entropy-and-dns/

• Checkyourdataagainstamultitudeofvirusdefinition DB’s.

• Free

• Subscription

• 4checksperhour

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• 5000+IT&BusinessProfessionals• 3daysoftechnicalcontent• 165+sessions• 80+CustomerSpeakers• 35+Apps inSplunkAppsShowcase• 75+TechnologyPartners• 1:1networking:AskTheExpertsandSecurityExperts,BirdsofaFeatherandChalkTalks

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ThankYou!

Date post:	14-Apr-2017
Category:	Data & Analytics
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SplunkLive Melbourne Splunk for Operational Security Intelligence

Data & Analytics