Transcript ppt-training-virus-computer-11

Training Virus Computer
Computer Network Research Group ITB
Objective Training
Increase Virus Awareness.
 Know practical ways to present computer
viruses.
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Computer Network Research Group ITB
Platform
Windows
 Novell
 DOS
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Delivery
Seminar & Discussion
 Directed “Hands on”.
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Computer Network Research Group ITB
Warning!
We are dealing with REAL computer virus
in this training.
 Our collection of viruses are approx. 75.

 It
will crash our computer!
Computer Network Research Group ITB
History & Statistics
Computer Network Research Group
Institut Teknologi Bandung
Computer Network Research Group ITB
Outline
Beberapa sejarah penting Virus.
 Beberapa statistik penting penyebaran virus.
 Summary.
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Early Viral Programs
Password Trojans.
 Cookie.
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Concept of Computer Virus
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Dr. Fred Cohen 3 November 1983
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Design a computer program that could modify
other programs to include a possibly evolved copy
of itself.
This evolved copy would then modify other
programs and thus continue the propagation and
evolution.
The program could easily be spread by unknowing
users throughout a computer system or network.
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Computer Network Research Group ITB
Computer Virus

Dr. Cohen's definition of a computer virus
as "a program that can 'infect' other
programs by modifying them to include a ...
version of itself" is generally accepted as a
standard.
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Example Viruses
Lehigh Virus (COMMAND.COM)
 Jerusalem Virus (COM & EXE)
 Friday the 13th
 Brain
 Den Zuk
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Virus Statistik
Berdasarkan laporan NCSA (National
Computer Security Association).
 Intel-based PC.
 Site di Amerika Utara.
 Industri & Pemerintah saja.
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Executive Summary
Rate encounter one in 100 PCs per month.
 Common virus: Form (boot-track).
 Sejak Fall 1995: Word concept.
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Bottom Line
Protect by simply using anti-virus software
and by keeping the software reasonably upto-date.
 The effect of "herd immunity" would nearly
eliminate the world-wide computer virus
problem
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Virus Penetration
Time Period
February, 1996
% of sites experiencing
virus encounter
90%
January, 1996
83%
Second half of 1995
71%
First half of 1995
63%
All of 1994
21%
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Word Macro infected over one
third (36%) of survey site and was
responsible for one-half (49%) of
all virus encounters
Computer Network Research Group ITB
Consequence Virus Attack
29% of sites which experienced virus
incidents:
 Servers were down for an average of 5.8
hours.
 Complete recovery took an average of 44
hours.
 Ten person-days of work.
 An average $8,100 in self-proclaimed costs
Computer Network Research Group ITB
Anti Virus at Client / PC
97% used anti-virus products.
 60% have some form of protection.
 25% of desktop PCs are protected by a virus
scanning policy alone.
 27% have periodic protection (automatic
scanning for viruses)
 33% automatically scan for viruses as a
background task.
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Computer Network Research Group ITB
Anti Virus at Server
85% used anti-virus products on servers.
 64% f all servers appear to have some
protection installed.
 28% of servers are protected by periodically
scanning for viruses.
 36% claim to use a full-time, background
task.
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Computer Network Research Group ITB
Department
MIS / IS
262
87%
Customer Service / Support
Data Processing
Public Relations /
Communications
General Administration /
Management
Accounting / Finance
9
9
7
3%
3%
2%
4
1%
2
1%
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Means of Infection
EMail
Internet / other
All Viruses
7.7%
Except Word.concept
All Viruses
8.8%
11.7%
Word.concept
21.5%
17.8%
Encounters
Word.concept
Incidents
30.5%
14.2%
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11.5%
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Computer Network Research Group ITB
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