Crackers can send Trojan horses that turn computers into zombie computers without the user's knowledge. A Trojan horse is disguised software that appears useful but has destructive effects like accessing files and sending personal information to other locations. To protect against Trojans, users should be wary of emails and attachments, install antivirus software and firewalls, and scan all downloaded files. If infected, users should disconnect from the internet and remove suspicious files or reinstall their operating system.

1. Sheen Hunter presents:
THE COMPUTER & INTERNET
SECURITY PROJECT
threat:
Trojan horse

3. The attack!
Crackers -- hackers who use their computer
skills to create mischief or cause malicious
threats intentionally -- can send out Trojans
that turn innocent Human’s computer
into zombie computers, so-called because the
human with the infected computer rarely
knows his/her system is under control. Crackers
then use these zombie computers to send out

4. What does it mean?!
Is it Good or Bad?
 n. A subversive group or device placed
within enemy ranks.
 The hollow wooden horse in which,
according to legend, Greeks hid and
gained entrance to Troy, later opening
the gates to their army.
 Computer Science. A program that
appears to be legitimate but is designed
to have destructive effects, as to data
residing in the computer onto which the

6. So… it’S baSically a Spy!!
 A Trojan is technically a worm.
 The threat is hidden/disguised in software that
appears to be useful. (such as virus removal
program)
 Can access files, folders, or your entire systems
by creating a "backdoor" or a “trapdoor "which
can be used to send your personal information
to another location.
 The program can reproduce LIKE a virus and
spread to other computers. A virus replicates
itself, while a Trojan horse does not.
 It can damage, delete, or destroy important
files.

7. How to PROTECT yourself?
•#1 Beware of opening any e-mails or
downloading attachments. Trusted Antivirus
•Delete e-mail that seems suspicious. software suites:
•Install an antivirus software and firewall. Avast Antivirus
•Scan every file you download (even if it's AVG Anti-Virus
from someone you know) Kaspersky Anti-
•Have a Trojan? Disconnect your Internet Virus
connection and remove the files in question McAfee
with an antivirus program or by reinstalling VirusScan
your operating system. Norton AntiVirus
•Call your computer manufacturer if you
need extra assistance.

8. What’S the troubleShooting proceSS?

9. What’S the troubleShooting proceSS?

10. What’S the troubleShooting proceSS?

11. What’S the troubleShooting proceSS?
4!Implement
a Solution

12. What’S the troubleShooting proceSS?
5!Verify
Solution and
Full System
Functionality

13. What’S the troubleShooting proceSS?
6!Document
Findings

14. More info: http://technet.microsoft.com/en-us/library/dd632947.aspx
http://technet.microsoft.com/en-
us/library/dd632947.aspx