Ppt on computer

1. B.ed First Year Session 2020-22
EPC 3-Criticial understanding of ICT
Name: Suraj Singh
Roll Number#2005

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. 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. 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. Resident vs. non-resident viruses
Macro viruses
Boot sector viruses
Email virus

7. 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. 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 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 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. 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. Thanks and Regards
Suraj Singh
B.Ed First Year
Roll# 2005