Who is Using Your PC

8/3/2019 Who is Using Your PC

http://slidepdf.com/reader/full/who-is-using-your-pc 1/21

PresentedBy

X



Who are hackers?

Why they do hacking?

How it affects the society?



•Phishing •Malware

•DOS •Trojan Horses

•Worms •Virus

•Botnet

•

Spyware

•Spam



Black Hat

White Hat

oGray Hat

oBlue Hat



Terror Organization

Smugglers

Online Thief

Mafia



Al-Qaida /Taliban

For Terrorist Activities

Main Weapon – Viruses

Join Task Force-Global Network Operations



Stacey Davida

Credit card and, Shippingand Billing Address

3asfh.net



Financed 2002 explosion

Killed more than 200 people

“Learn to Hack”-Imam Samudra



Celebrity Phone hacking (2010)

Sony Hacking Case (2009)-PlayStation network

shut down

Phone Hacking case (2011)- News of the world



T.J. Maxx theft- 45.7 million credit/ debit

card user at risk

Pentagon hacking case- Gary McKinnon

(biggest military computer hack of all time)



Targeting

Research and Information Gathering

Code program

Break code



PCQ VMJYPD LBYK LYSO KBXBJXWXV BXV ZCJPO EYPD KBXBJYUXJ LBJOOKCPK. CP LBO LBCMKXPV XPV IYJKL PYDBL, QBOP KBO BXV OPVOV LBOLXRO CI SX'XJMI, KBO JCKO XPV EYKKOV LBO DJCMPV ZOICJO BYS,KXUYPD: “DJOXL EYPD, ICJ X LBCMKXPV XPV CPO PYDBLK Y BXNO ZOOP

JOACMPLYPD LC UCM LBO IXZROK CI FXKL XDOK XPV LBO RODOPVK CIXPAYOPL EYPDK. SXU Y SXEO KC ZCRV XK LC AJXNO X IXNCMJ CI UCMJSXGOKLU?” OFYRCDMO, LXROK IJCS LBO LBCMKXPV XPV CPO PYDBLK



We identify the most common characters, diagrams and trigrams in

the cipher text

PCQ VMJYPD LBYK LYSO KBXBJXWXV BXV ZCJPO EYPDKBXBJYUXJ LBJOO KCPK. CP LBO LBCMKXPV XPV IYJKL PYDBL,QBOP KBO BXV OPVOV LBO LXRO CI SX'XJMI, KBO JCKO XPVEYKKOV LBO DJCMPV ZOICJO BYS, KXUYPD: “DJOXL EYPD, ICJ

X LBCMKXPV XPV CPO PYDBLK Y BXNO ZOOP JOACMPLYPD LCUCM LBO IXZROK CI FXKL XDOK XPV LBO RODOPVK CI XPAYOPLEYPDK. SXU Y SXEO KC ZCRV XK LC AJXNO X IXNCMJ CI UCMJSXGOKLU?” OFYRCDMO, LXROK IJCS LBO LBCMKXPV XPV CPO PYDBLK

First guess:◦ LBO is THE



Assuming LBO represents THE, we replace L with T, B with H,

and O with E and get

PCQ VMJYPD THYK TYSE KHXHJXWXV HXV ZCJPE EYPDKHXHJYUXJ THJEE KCPK. CP THE THCMKXPV XPV IYJKTPYDHT, QHEP KHO HXV EPVEV THE LXRE CI SX'XJMI, KHE JCKEXPV EYKKEV THE DJCMPV ZEICJE HYS, KXUYPD: “DJEXT EYPD, ICJ X THCMKXPV XPV CPE PYDHTK Y HXNE ZEEP JEACMPTYPDTC UCM THE IXZREK CI FXKT XDEK XPV THE REDEPVK CIXPAYEPT EYPDK. SXU Y SXEE KC ZCRV XK TC AJXNE X IXNCMJCI UCMJ SXGEKTU?”

EFYRCDME, TXREK IJCS THE THCMKXPV XPV CPE PYDBTK





Now during this time Shahrazad had borne King Shahriyar threesons.

On the thousand and first night, when she had ended the tale of

Ma'aruf , she rose and kissed the ground before him, saying: “Great

King, for a thousand and one nights I have been recounting toyou the fables of past ages and the legends of ancient kings.May I make so bold as to crave a favour of your majesty?”

Epilogue, Tales from the Thousand and One Nights



1. ILOVEYOU

2. Mydoom

3. Blaster4. Sobig Worm

5. Code Red

6. CIH

7. Klez

8. Melissa9. Sasser

10. Bagle



Check Email details

Valid website

Secure online payment

Spam unsecure mail



Never keep Personal information Online

Never use unsecure network

Change password once a month

Get update with online security



Online security is today's main concern.

R&D should put more concern on it.

World need to fight together.

Never try it, its illegal.



Documents

Who is Using Your PC