online game security quake iii and its hacks l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Online Game Security - Quake III and its Hacks - PowerPoint Presentation
Download Presentation
Online Game Security - Quake III and its Hacks -

Loading in 2 Seconds...

play fullscreen
1 / 22

Online Game Security - Quake III and its Hacks - - PowerPoint PPT Presentation


  • 660 Views
  • Uploaded on

Online Game Security - Quake III and its Hacks - (related paper: A Systematic Classification of Cheating in Online Games , Jeff Yanand and Brian Randell. Submitted 2004) Speaker: S. F. Yeung Flow of this Presentation What is Game Hacks? How do Hacks Work? What can Hacks Do?

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Online Game Security - Quake III and its Hacks -' - oshin


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
online game security quake iii and its hacks

Online Game Security- Quake III and its Hacks -

(related paper: A Systematic Classification of Cheating in Online Games, Jeff Yanand and Brian Randell. Submitted 2004)

Speaker: S. F. Yeung

flow of this presentation
Flow of this Presentation
  • What is Game Hacks?
  • How do Hacks Work?
  • What can Hacks Do?
  • How to Fight Against Them?
  • How Hackers Fight back ?
  • So, What’s Now?
  • Possible Solutions
what is game hacks or cheats
What is Game Hacks (or cheats)?
  • A program that alters a game’s performance
  • Enhancing the abilities of the hacker (or cheater)
  • Giving an unfair edge over the other players
what hacks can cannot do
What Hacks can/cannot Do ?
  • Hacks can
    • Reveal hidden information on the client side
    • Assist your mouse/keyboard control
    • Enhance your visibility or remove unwanted visual effect
  • Hack cannot
    • Reveal information not exist in client side
    • Alter the rules and logics of the game
    • Alter the performance of other players
how do hacks work
How do Hacks Work?
  • Hard Coded
    • Modify the game code
  • External
    • Retrieve information from the game indirectly and alter the control of the game indirectly
  • Driver Hack
    • Modify the video driver to gain special visual effect
  • Client Hook
    • Inject code into the game’s memory in runtime
how do hacks work6
How do Hacks Work?
  • Hard Coded
    • Modify the game code directly and permanently
    • Easily to be blocked

Game Server

Game Program

DATA

Hack

slide7

How do Hacks Work?

  • External
    • Reside outside the game program
    • Limited functionality

Game Server

Game Program

Windows

Graphic

Display

Interface

Hack

DATA

Color Model

Windows Mouse Control

slide8

How do Hacks Work?

  • Driver Hack
    • Modify the OpenGL driver so that objects (including walls) become semi-transparent
    • Difficult and dangerous to install

Game Server

Game Program

Hacked

Video

Driver

Display

DATA

slide9

How do Hacks Work?

  • Client Hook
      • The most advanced and popular today
      • Inject code into the game’s memory in runtime
      • Alter and control the game directly in runtime

Game Server

Client

Hook

Game

Running

DATA

what can hacks do
What can Hacks Do ?
  • Wall Hack
    • See other players through walls
  • Aimbot (aiming robot)
    • Lock your crosshair on other players automatically
  • Firebot (fire robot)
    • Fire your weapon automatically once your crosshair hover over another player
  • ESP (extrasensory perception)
    • Reveal and display hidden information
what can hacks do11
What can Hacks Do ?
  • Wall Hack
    • Driver Hack
      • Make everything semi-transparent, you can see others through walls, but everything become semi-transparent may not be good somehow
    • Client Hook
      • Only show certain objects through walls, very effective
slide12

Full transparency

Partial transparency

what can hacks do13
What can Hacks Do ?
  • Aimbot and Firebot
    • External
      • Colored object model
      • Scan the screen to locate target
      • Interfere your control via Windows message
      • Not very intelligent and inaccurate
    • Client hook
      • Access the game engine in memory, obtain target position and take over your control directly
      • Perfect accuracy if low network latency
slide15

What can Hacks Do ?

  • ESP
    • Client Hook
      • Radar ESP and Map ESP
        • Shows the location of enemies
      • Text ESP
        • Shows other players’ name, weapon, armor and other variables
how to fight against hacks
How to Fight Against Hacks?
  • Pure Server Environment
    • Server will check against all game files, players joining the server must have the same config file, object models, sound files, etc.
    • Effective against hard-coded hacks and external hacks
slide18

How to Fight Against Hacks?

  • 3rd Party Anti-cheating Software
    • For example:
      • PunkBustered (Quake III, RTCW)
      • UT Pure (Unreal Tournament)
      • VAC (Counter Strike)
    • Players must install the anti-cheating software in order to join a anti-cheating enabled server
    • Acts like a virus scanner
    • Auto updates with the new hack patterns
    • Capture and send screenshots regularly
    • Banns your serial number if any hack found
how hackers fight back
How Hackers Fight back?
  • Anti-cheating Software Proof Hacks
    • Cracks the anti-cheating software binary
    • Alters the behavior of the anti-cheating software
    • Automatically disable the hacks each time the anti-cheating software takes a screen shot
so what s now
So, What’s Now?
  • An update competition
    • Most hacks will be banned several days after public release
    • Major hacks will have new version few weeks after the previous one get banned
possible solutions
Possible Solutions
  • Use secure network protocol
    • Add checksum between every packets, makes insertion or modification of packets difficult
  • Encrypt all important variables
    • Encrypt variables so that cheats cannot reveal information from the memory
  • Push all computation to the server side
    • The client side only responsible for user input and display rendering thus the cheats have no way to alter the state or outcome of the game