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1. BAREILLY COLLEGE BAREILLY
B.ed First Year Session 2020-22
EPC 3-Criticial understanding of ICT
Name: Pankaj Singh
Roll Number#2016

2. Computer Virus and its management

3. Overview
What is computer Virus & its historical prospective?
What are its various types?
How does it impact us?
How can we manage it?

4. WHAT IS COMPUTER VIRUS?
A computer virus is a type of computer program that, when
executed, replicates itself by modifying other computer programs
and inserting its own code.If this replication succeeds, the affected
areas are then said to be "infected" with a computer virus.

5. HISTORICAL PROSPECTIVE
The first computer virus, called "Creeper system", was an
experimental self-replicating virus released in 1971. It was filling
up the hard drive until a computer could not operate any further.
This virus was created by BBN technologies in the US. The first
computer virus for MS-DOS was "Brain" and was released in 1986.

6. TYPES OF COMPUTER VIRUS
Resident vs. non-resident viruses
Macro viruses
Boot sector viruses
Email virus

7. RESIDENT VS. NON-RESIDENT VIRUSES
A memory-resident virus (or simply "resident virus") installs
itself as part of the operating system when executed, after which
it remains in RAM from the time the computer is booted up to
when it is shut down. Resident viruses overwrite interrupt
handling code or other functions, and when the operating
system attempts to access the target file or disk sector, the virus
code intercepts the request and redirects the control flow to the
replication module, infecting the target

8. MACRO VIRUSES
A macro virus (or "document virus") is a virus that is written in
a macro language and embedded into these documents so that
when users open the file, the virus code is executed, and can
infect the user's computer. This is one of the reasons that it is
dangerous to open unexpected or suspicious attachments in e-
mails

9. BOOT SECTOR VIRUSES
Boot sector viruses specifically target the boot sector and/or
the Master Boot Record (MBR) of the host's hard disk
drive, solid-state drive, or removable storage media (flash
drives, floppy disks, etc.).

10. EMAIL VIRUS
Email viruses are viruses that intentionally, rather than
accidentally, uses the email system to spread. While virus
infected files may be accidentally sent as email attachments,
email viruses are aware of email system functions. They
generally target a specific type of email system (Microsoft
Outlook is the most commonly used), harvest email addresses
from various sources, and may append copies of themselves to
all email sent, or may generate email messages containing
copies of themselves as attachments

11. MANAGEMENT OF COMPUTER VIRUS
Install Anti-Virus/Malware Software.
Keep Your Anti-Virus Software Up to Date
Run Regularly Scheduled Scans with Your Anti-Virus Software.
Keep Your Operating System Current.
Secure Your Network.
Think Before You Click.
Keep Your Personal Information Safe.
 Don’t Use Open Wi-Fi.
 Back Up Your Files.
Use Multiple Strong Passwords.

12. A FEW ANTI-VIRUS THAT PROTECT OUR DATA
Thanks and Regards
Pankaj Singh
B.Ed First Year
Roll# 2016