Scanning the Airwaves - DEF CON Media Server CON 25/DEF CON 25...Universal Software Radio Peripheral...

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Free PowerPoint Templates Scanning the Airwaves or: how to build a trunked radio scanner with a $20 USB stick Free PowerPoint Templates BRYAN PASSIFIUME & RICHARD HENDERSON DefCon 25, Las Vegas – July 2017

Transcript of Scanning the Airwaves - DEF CON Media Server CON 25/DEF CON 25...Universal Software Radio Peripheral...

Page 1: Scanning the Airwaves - DEF CON Media Server CON 25/DEF CON 25...Universal Software Radio Peripheral (USRP) Free PowerPoint Templates. Free ... - Frequency assignment is transparent

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ScanningtheAirwavesor: how to build a trunked radio scanner with a $20 USB stick

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BRYANPASSIFIUME&RICHARDHENDERSONDefCon 25,LasVegas– July2017

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Welcome!

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WhoWeAre

Bryan:

Ham,CrimeReporter/PhotogforCalgarySun.Co-founderofHamRadiosatiresiteHamsexy.com

@BryanPassifiume

Richard:

Ham,writer,infosec professional.

@RichSentMe

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Is:

awaytolearnmoreaboutSDR,listeningin,modernfrequencyscanning

teachingthebasictoolstogetstarted

IsNOT:

anall-encompassingwalkthroughofhowtolistentoeverythingoutthere.

awaytocrackencryptedcomms… well,notall encryptedcomms (voiceinversionisNOTcryptolulz)

ahand-holdingexercisetosetyouupwithascannerandletyouloose– you’llneedtotakewhatyoulearn

andapplyittoyourownlocalenvironment

VSWhatthisis

Whatthisisnot

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Wearenotlawyers.Don’tbestupid.Yourmileage

mayvary.Usethisforbad,it’syourass.“-- Bryan&Richard,NotLawyers

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It’sWorthIt!

WhyGetaLicense?

It’sEasy Community KeytoRFExperimentation

Resources Trouble?Havingalicenseopensupallsortsofnew

gadgets,powerlevels,andideas.

Gettingstartedinmostplacesissupereasy.Noadvancedelectronicsknowledgeis

needed.

Itmaybeadyinghobby,buttherearestillaLOTofhamsout

there.

1000Wattsofpowercancarry.

Highpowerlevels,datalinks,moonbounce,satellites,etc.

Likemostthings,youcanfindtonsofhelponline.

Insomeplaces,havingahamlicenseistheonlylegally

alloweduseofcertainscanning

equipment

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SYSTEMREQUIREMENTS----- Windows.NoVMs.Srs. -----

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1AQuickHistoryHowdidwegettohere?

PracticalIntroduction

SoftwareInstallation&Setup

AdvancedMonitoring

Currentstateofhardware,antennatypes,whyheatmatters,etc.

Gettingstartedwiththeintroductorysoftware(HDSDR)

Movingintotrunkedradiosystems– howtheywork,installingothersoftwaretomonitor

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Agenda

5WheretoGofromHere?Multi-stickmonitoring,pagerdecoding,wheretofindmoreinfo

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PARTONE:

----- IntheBeginning… -----

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EarlyRadioScanners…

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TheBirthofSDR

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UniversalSoftwareRadioPeripheral(USRP)

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EntertheRealtek RTL2832U…

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PARTTWO:

----- IntroductiontoSDRScanningToday -----

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TheBasics:

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OtherSticks:

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AQuickNoteonAntennaConnectors:

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AWordorTwoonHeat:

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AWordorTwoonHeat:

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PARTTHREE:

----- GettingStartedwithBasicScanning-----

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GettingtheSoftware

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Drivers:•WinUSB drivers via Zadig installer (http://zadig.akeo.ie/)

•ExtIO.DLL (https://github.com/josemariaaraujo/ExtIO_RTL)

Software:•HDSDR (http://www.hdsdr.de/)

•UniTrunker 1.0.32.5 (http://www.unitrunker.com/)

•DSDPlus 1.101 (https://www.dsdplus.com/)

•VB Cable 4.5 (http://www.vb-audio.com/Cable/index.htm)

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InstallingtheSoftware

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WinUSB: •Run ZADIG installer to load WinUSB drivers for each “bulk-in, interface” instance noted (if needed)

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InstallingtheSoftware

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SDRDriver/Libraries:

UnzipExtIO_RTL-master.zip

CopyzipfilecontentstoC:\ProgramFiles(x86)\HDSDR

HDSDR:

•RunHDSDR_install.exe,followetc.

•Runprogram

•LoadEXT_IOforSDRdongle:

• Options(F7)

• SelectInput

• PointtoExtIO_RTL.DLL in/release/folder

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InstallingtheSoftware

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Calibration&Operation

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Calibration&Operation

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TimetoDoSomeScanning!

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Let’s take 30 minutes (or more!) to experiment.

Tune around, see what interesting signals you can find!

Suggestions:

- Local broadcast FM (87-108MHz)

- Other signals in the 450-520MHz range (FRS radio, commercial

UHF)

- We’ll key up radios and show you what low power vs. high power

signals might look like on your computer

- Can you find local ATC?

- Troubleshooting, initial questions, help, etc.

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PARTFOUR:

----- AdvancedMonitoring-----

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Trunking

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Mostlargemunicipalradiosystemsemploysomeformoftrunkedradio

system,arepeater-based,scalablepacket-switchingradionetworkthat

permitsalargeamountofuserstouseasmallamountoffrequencies:

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Trunking

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MostcommonarevariantsofMotorolaTypeIInetworkssystem,using

singlecontrolchanneltoallocate&assignfrequenciestotalkgroups.

ExampleofTrunk88runningonmyhomecomputer:

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HowDoTrunking SystemsWork?

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- Talkgroups analogousto‘virtualchannels’

- Frequencyassignmentistransparenttotheuser

- Systemsaretypicallydesigned,built,andoperatedaroundthe”5x5”

principle

- Therefore,mostsystemshavealargenumberofTGsandasmall

numberofavailablefrequenciesandvoicechannels

- ThenumberofmaximumactiveTGsatonceis,asyou’dexpect,

limitedbythenumberofvoicechannels

- DevelopmentofcommercialTrunkTracking scannersrequiredreverseengineeringofeachvendor’sproprietarycontrolchanneldata

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HowDoTrunking SystemsWork?

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- Talkgroups analogousto‘virtualchannels’

- Frequencyassignmentistransparenttotheuser

- Systemsaretypicallydesigned,built,andoperatedaroundthe”5x5”

principle

- Therefore,mostsystemshavealargenumberofTGsandasmall

numberofavailablefrequenciesandvoicechannels

- ThenumberofmaximumactiveTGsatonceis,asyou’dexpect,

limitedbythenumberofvoicechannels

- DevelopmentofcommercialTrunkTracking scannersrequiredreverseengineeringofeachvendor’sproprietarycontrolchanneldata

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HowDoTrunking SystemsWork?

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Howatrunkedtransmissionworksinthepicturehere:

1. UserpressesPTTkeyonradio,whiletunedtoTGA3

2. Trunkcontrollersearchesforafreefrequency(inthis

case864.000MHz),andthenissueschannelgrantto

allradiostunedtoTGA3touse864.000MHz.

3. WhenuserreleasesPTT,trunkcontrollerordersall

radiosonTGA3tostandby,andthenreleases864.000

backintotheavailablefrequencypool.

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SomeBackgroundontheHistoryofSystemHacking

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• Workbuiltonshouldersofdecadesofradiohackingcommunitiescenteredaroundthe

Batlabs website,severalRussian-basedhackingcollectivesandlaterthenow-defunct

P25.ca/communications,support forums.

• MotorolaRSS/CPSsoftwareveryexpensiveandfiercelyprotected,onlinefilesharing

helpedspreadthehobby

• RudimentaryprotectionschemesbyMotorolaeasilycircumvented,suchassoftware

(andlaterhardware)systemkeysfortrunkedradioprogramming,theleakoflab/depot

versionsofprogrammingsoftware,andwhatwasonceathrivingcommunityofhackers

andusers,developingworkaroundsandcountermeasurestoMotorola’slatestefforts

toshutoutunauthorizedusers

• Innovationandworkaroundsmeanalmosteverytrunkedpoliceradiosystemoperating

inNorthAmericahasatleastacoupleofunauthorizedradiossilentlyaffiliatedand

listeningin

• Biggestdetrimentnowisencryption— AES256-based

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IntroductiontoUniTrunker

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• Aready-to-rollcopyofUniTrunker willbeprovidedtoattendees,instead

offorcingeveryonetorolltheirown(whichwouldtakeforevertogetset

up).

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IntroductiontoMOTOTRBOandDSD+

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• DemonstrationofDSD+anditsabilitytodecodethelocalMotoTrbo

system.;)

• DiscussiononhowDSD+candecodeP25audioviapipedaudiofromother

software(likeHDSDR,UniTrunker,etc.)

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IntroductiontoMOTOTRBOandDSD+

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• QuickprimeronMotoTrbo/DMRmethodology(moreslidestocomehere)

• TDMA

• Timeslots

• sidealong data/telemetry,etc.

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PARTFIVE:

-----WheretoGoFromHere-----

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OnlineResourcesforFrequencyData

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• RadioReference

• Othersites

• We’lldemofindinginfoforyourarea!

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OnlineResourcesforGettingaHamRadioLicense

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• ARRL

• RAC

• QuestionPools

• Howtofindanexaminer,whattheexamislike,etc.

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SpecificQuestions?

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• We’llusetherestofthetimetoplay,experiment,TX/RX!


DEF CON 23 Presentation CON 23/DEF CON 23 presentations/DEF… · Don’t"believe"anything"I"Say • Also,"hold"those"around"you"accountable

DEF CON 23 Presentation CON 23/DEF CON 23 presentations/DEF… · Don’t"believe"anything"I"Say • Also,"hold"those"around"you"accountable

Starting the Avalanche - DEF CON CON 25/DEF CON 25 presentations/DEF… · Starting the Avalanche: Application DoS ... DEFCON, Speeches, Hacking, Hackers, Hacker Conference, Computer

Starting the Avalanche - DEF CON CON 25/DEF CON 25 presentations/DEF… · Starting the Avalanche: Application DoS ... DEFCON, Speeches, Hacking, Hackers, Hacker Conference, Computer

Building AppSec Automation with python - DEF CON CON 25/DEF CON 25... · Building AppSec Automation with python ... Con!guring ZAP to run with Python ... DEF CON, DEFCON, Speeches,

Building AppSec Automation with python - DEF CON CON 25/DEF CON 25... · Building AppSec Automation with python ... Con!guring ZAP to run with Python ... DEF CON, DEFCON, Speeches,

DEF CON 23 Presentation CON 23/DEF CON 23... · DEF CON 23 Presentation Keywords: DEF CON Conference, DEF CON, DEFCON, Speeches, Hacking, Hackers, Hacker Conference, Computer Security,

DEF CON 23 Presentation CON 23/DEF CON 23... · DEF CON 23 Presentation Keywords: DEF CON Conference, DEF CON, DEFCON, Speeches, Hacking, Hackers, Hacker Conference, Computer Security,

Your Bank’s Digital Side Door - DEF CON CON 26/DEF CON 26 presentations/DEF… · Quicken/Quickbooks Connection Types Web Connect •Unidirectional •Manual •Download a file

Your Bank’s Digital Side Door - DEF CON CON 26/DEF CON 26 presentations/DEF… · Quicken/Quickbooks Connection Types Web Connect •Unidirectional •Manual •Download a file

Bypass firewalls, application white ... - media.defcon.org CON 22/DEF CON 22 presentations... · DEF CON 22, 2014. Hungary. root@ ... ... DEFCON, DEF CON, Hacker, Security Conference,

Bypass firewalls, application white ... - media.defcon.org CON 22/DEF CON 22 presentations... · DEF CON 22, 2014. Hungary. root@ ... ... DEFCON, DEF CON, Hacker, Security Conference,

802.11 Massive Monitoring - Paper Conf/Defcon/2015/DEFCON … · managed by a Python framework ... DEF CON 23 Presentation ... Subject: DEF CON 23 Presentation Keywords: DEF CON Conference,

802.11 Massive Monitoring - Paper Conf/Defcon/2015/DEFCON … · managed by a Python framework ... DEF CON 23 Presentation ... Subject: DEF CON 23 Presentation Keywords: DEF CON Conference,

DEF CON 24 Hacking Conference - Ruxcon · Title: DEF CON 24 Hacking Conference Author: DEF CON 24 Speaker Keywords

DEF CON 24 Hacking Conference - Ruxcon · Title: DEF CON 24 Hacking Conference Author: DEF CON 24 Speaker Keywords

Network Protocol Reverse Engineering - DEF CON CON 24/DEF CON 24 presentations/DEF… · Network Protocol Reverse Engineering ... Linux, Mac •Scapy –Python based, extensible •Fuzzing

Network Protocol Reverse Engineering - DEF CON CON 24/DEF CON 24 presentations/DEF… · Network Protocol Reverse Engineering ... Linux, Mac •Scapy –Python based, extensible •Fuzzing

DEF CON 25 Hacker Conference - DefCon Media Server CON 25/DEF CON 25 presentations/DEF… · functionality = self.checklist["Functionality"] ... Manually add ancillary data (pentest/other

DEF CON 25 Hacker Conference - DefCon Media Server CON 25/DEF CON 25 presentations/DEF… · functionality = self.checklist["Functionality"] ... Manually add ancillary data (pentest/other

Last mile authentication problem - DEF CON CON 26/DEF CON 26...Last mile authentication problem Exploiting the missing link in end-to-end secure communication DEF CON 26 Our team Sid

Last mile authentication problem - DEF CON CON 26/DEF CON 26...Last mile authentication problem Exploiting the missing link in end-to-end secure communication DEF CON 26 Our team Sid

DEF CON 25 Hacker Conference CON 25/DEF CON 25 presentations/DEF… · $ python c2960-lanbasek9-m-12.2 ... DEF CON 25 Hacker ... Subject: DEF CON 25 Presentation Keywords: DEF CON

DEF CON 25 Hacker Conference CON 25/DEF CON 25 presentations/DEF… · $ python c2960-lanbasek9-m-12.2 ... DEF CON 25 Hacker ... Subject: DEF CON 25 Presentation Keywords: DEF CON

DEF CON 26 HACKING CONFERENCE CON 26/DEF CON 26 receipt.pdf · Title: DEF CON 26 HACKING CONFERENCE Author: DEF CON 26 Subject: DEF CON 26 RECEIPT Keywords: DEF CON Conference, DEF

DEF CON 26 HACKING CONFERENCE CON 26/DEF CON 26 receipt.pdf · Title: DEF CON 26 HACKING CONFERENCE Author: DEF CON 26 Subject: DEF CON 26 RECEIPT Keywords: DEF CON Conference, DEF

Teaching Old Shellcode New Tricks - DEF CON CON 25/DEF CON 25 presentations/DE… · Teaching Old Shellcode New Tricks DEF CON 2017 @midnite_runr

Teaching Old Shellcode New Tricks - DEF CON CON 25/DEF CON 25 presentations/DE… · Teaching Old Shellcode New Tricks DEF CON 2017 @midnite_runr

Kartograph - DEF CON

Kartograph - DEF CON

Aaron Bayles DC101 @ DEF CON 22 - DEF CON® Hacking Conference · Aaron Bayles DC101 @ DEF CON 22 ... //media.blackhat.com/us ... Lockpicking, Hackers, Infosec, Hardware Hacking,

Aaron Bayles DC101 @ DEF CON 22 - DEF CON® Hacking Conference · Aaron Bayles DC101 @ DEF CON 22 ... //media.blackhat.com/us ... Lockpicking, Hackers, Infosec, Hardware Hacking,

DEF CON 26 Hacking Conference - DEF CON Media Server CON 26/DEF CON 26 presentations/DEF… · started in late 2017 to prepare for the 2018 CCDC season. We ended up using the BETA

DEF CON 26 Hacking Conference - DEF CON Media Server CON 26/DEF CON 26 presentations/DEF… · started in late 2017 to prepare for the 2018 CCDC season. We ended up using the BETA

Hacking MANET - Def Con

Hacking MANET - Def Con

WhyMI so Sexy? WMI Attacks, Real-Time Defense, … CON 23/DEF CON 23...Title DEF CON 23 Presentation Author DEF CON 23 Speaker Subject DEF CON 23 Presentation Keywords

WhyMI so Sexy? WMI Attacks, Real-Time Defense, … CON 23/DEF CON 23...Title DEF CON 23 Presentation Author DEF CON 23 Speaker Subject DEF CON 23 Presentation Keywords

Introduction to x86 disassembly - DEF CON CON 24/DEF CON 24 workshops/DEF CON 24... · x86 •Today, “x86” generally refers to all architectures based off of the original 8086

Introduction to x86 disassembly - DEF CON CON 24/DEF CON 24 workshops/DEF CON 24... · x86 •Today, “x86” generally refers to all architectures based off of the original 8086