logging in or signing up hack ashishguptaipec Download Post to : URL : Related Presentations : Let's Connect Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Copy embed code: Embed: Flash iPad Dynamic Copy Does not support media & animations Automatically changes to Flash or non-Flash embed WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 2317 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: October 02, 2008 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: satishwow (45 month(s) ago) plz sir i wanna download it.. may i have perma link ? Saving..... Post Reply Close Saving..... Edit Comment Close By: 3367 (60 month(s) ago) nice Saving..... Post Reply Close Saving..... Edit Comment Close By: nawar_hh2006 (64 month(s) ago) its a fntastec ,,, but i need to dawnload it how ???? Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript What is hacking? : What is hacking? Contents (1) : Contents (1) Who is hacker? History of hacking Types of hacking Hacking accidents Why do hackers hack? What hackers do after hacking? What do hackers know? Contents (2) : Contents (2) How can kid hack? Why can’t Korean kid hack? How can be a real hacker? Why can’t defend against hackers? How can protect the system? What should do after hacked? Contents (3) : Contents (3) How to translate the hackers’ language Who is hacker? (1) : Who is hacker? (1) Hack Cut with repeated irregular blows Examine something very minutely Hacker The person who hacks Cracker System intruder/destroyer Who is hacker? (2) : Who is hacker? (2) Hacker means cracker nowadays Meaning has been changed History of hacking : History of hacking Telephone hacking Use telephone freely It’s called phreaking Computer virus Destroy many computers Network hacking Hack the important server remotely and destroy/modify/disclose the information Types of hacking : Types of hacking Normal data transfer Interruption Interception Modification Fabrication Hacking accidents (1) : Hacking accidents (1) Internet Worm Robert T. Morris made an internet worm. It spread through the internet and crashed about 6000 systems. Cuckoo’s Egg Clifford Stoll caught the hackers who are the German hackers applied by KGB Hacking accidents (2) : Hacking accidents (2) IP Spoof Kevin Mitnick was caught by Tsutomu Shimomura who was security expert. Kevin Mitnick uses the IP Spoof attack in this accident Why do hackers hack? : Why do hackers hack? Just for fun Show off Hack other systems secretly Notify many people their thought Steal important information Destroy enemy’s computer network during the war What do hackers do after hacking? (1) : What do hackers do after hacking? (1) Patch security hole The other hackers can’t intrude Clear logs and hide themselves Install rootkit ( backdoor ) The hacker who hacked the system can use the system later It contains trojan ls, ps, and so on What do hackers do after hacking? (2) : What do hackers do after hacking? (2) Install irc related program identd, irc, bitchx, eggdrop, bnc Install scanner program mscan, sscan, nmap Install exploit program Install denial of service program Use all of installed programs silently What do hackers know? : What do hackers know? Don’t know how to use vi Don’t know what unix is Don’t know what they do Know how to intrude the system Know how to crash the system Know where the hacking programs are How can kid hack? : How can kid hack? Kid has much of time Kid can search for longer time than other people All hacking program is easy to use Kid doesn’t have to know how the hacking program works These kids are called script kiddies Why can’t Korean kid hack? : Why can’t Korean kid hack? Almost all Korean kids don’t know English well Almost all hacking program manuals are written in English However, many hacking program manuals are being translated How can be a real hacker? : How can be a real hacker? Study C/C++/assembly language Study computer architecture Study operating system Study computer network Examine the hacking tools for a month Think the problem of the computer Why can’t defend against hackers? : Why can’t defend against hackers? There are many unknown security hole Hackers need to know only one security hole to hack the system Admin need to know all security holes to defend the system How can protect the system? (1) : How can protect the system? (1) Patch security hole often Encrypt important data Ex) pgp, ssh Do not run unused daemon Remove unused setuid/setgid program Setup loghost How can protect the system? (2) : How can protect the system? (2) Use switch hub Setup firewall Ex) ipchains Setup IDS Ex) snort Check unintentional changes Ex) tripwire How can protect the system? (3) : How can protect the system? (3) Backup the system often What should do after hacked? : What should do after hacked? Shutdown the system Or turn off the system Separate the system from network Restore the system with the backup Or reinstall all programs Connect the system to the network It can be good to call the police How to translate the hackers’ language (1) : How to translate the hackers’ language (1) 1 -> i or l 3 -> e 4 -> a 7 -> t 9 -> g 0 -> o $ -> s | -> i or l |\| -> n |\/| -> m s -> z z -> s f -> ph ph -> f x -> ck ck -> x How to translate the hackers’ language (2) : How to translate the hackers’ language (2) Ex) 1 d1d n0t h4ck th1s p4g3, 1t w4s l1k3 th1s wh3n 1 h4ck3d 1n I did not hack this page, it was like this when I hacked in You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.