4. Introduction to Antivirus Programs
• Antivirus software is a type of program
designed and developed to protect computers
from malware like viruses, computer worms,
spyware, botnets, rootkits, key loggers and
such. Antivirus programs function to scan,
detect and remove viruses from your
computer
5. What is a computer virus?
• In more technical terms, a computer virus is a
type of malicious code or program written to
alter the way a computer operates and is
designed to spread from one computer to
another. A virus operates by inserting or
attaching itself to a legitimate program or
document that supports macros in order to
execute its code
6. Types of Viruses ?
1. Boot sector virus
This type of virus can take control when you start — or boot — your computer. One way it can
spread is by plugging an infected USB drive into your computer.
2. Web scripting virus
This type of virus exploits the code of web browsers and web pages. If you access such a web
page, the virus can infect your computer.
3. Browser hijacker
This type of virus “hijacks” certain web browser functions, and you may be automatically directed
to an unintended website.
4. Resident virus
This is a general term for any virus that inserts itself in a computer system’s memory. A resident
virus can execute anytime when an operating system loads.
5. Direct action virus
This type of virus comes into action when you execute a file containing a virus. Otherwise, it
remains dormant.
7. Types of Viruses ?
6. Polymorphic virus
A polymorphic virus changes its code each time an infected file is executed. It does
this to evade antivirus programs.
7. File infector virus
This common virus inserts malicious code into executable files — files used to perform
certain functions or operations on a system.
8. Multipartite virus
This kind of virus infects and spreads in multiple ways. It can infect both program files
and system sectors.
9. Macro virus
Macro viruses are written in the same macro language used for software applications.
Such viruses spread when you open an infected document, often through email
attachments.
8.
9. What are Antivirus Programs?
Antivirus software is a type of security software
designed to protect users from multiple types of
malware, not just viruses.
The software is a risk management tool that
scans devices regularly and on-demand for
known malware and suspicious behavior
associated with malware. Antimalware software
is similar to antivirus software but tends to be
more specific to the malware it defends against.
When malware is detected by antivirus software,
the user will be alerted to the threat and the
malware will be deleted. Sometimes the
antivirus will ask the user first before deletion.
Asking first is a useful attribute when the
detection of malware is a false positive, which is
a possibility when the antivirus uses certain
detection techniques.
10. Types of Antivirus Programs?
• System monitoring antivirus
• This antivirus protection can monitor
software and computer systems for behavior
that is suspect or atypical of the user.
• For instance, alerts are created when a user
connects to unfamiliar sites or attempts to
access a large number of files, or when there’s
a significant increase in data usage.
11. Types of Antivirus Programs?
• Machine learning antivirus
• Another form of protection can be machine learning
techniques, which monitor “normal” computer or
network behaviors. The machine learning antivirus
software is able to limit activities by programs or
computers if they look suspicious.
• More specifically, machine learning detection
implements algorithms to facilitate malware detection
that is broader in scope. This type of antivirus
protection is beneficial because it works in tandem
with other antivirus applications to provide multiple
layers of protection.
12. Types of Antivirus Programs?
• Malware signature antivirus
• Malware signature antivirus software detects
malware signatures, which are digital fingerprints
of malicious software. Antivirus protection can
scan for specific malicious codes, identify specific
viruses, and disable these programs.
• While malware signature antivirus protection is
key for detecting and eradicating known viruses,
one limitation is its inability to address new
viruses. The antivirus product simply doesn’t
contain these new virus signatures.
13.
14.
15. cyber attacks?
• A cyber attack is an assault launched by cybercriminals
using one or more computers against a single or
multiple computers or networks. A cyber attack can
maliciously disable computers, steal data, or use a
breached computer as a launch point for other attacks.
Cybercriminals use a variety of methods to launch a
cyber attack, including malware, phishing,
ransomware, denial of service, among other methods.
16.
17. The security solutions in today’s market offer varying degrees of protection
against cyber attacks, which you can use at least for a level of primary
protection. These are:
Encryption Software: This software can help encrypt and protect all your
sensitive data such as customer information, financial statements,
employee records, and client information.
Data Backup Solutions: Data Backup Solutions can help backup all your
business-critical data. In the event of any information loss or compromise,
you can quickly retrieve the data from the alternate backup location.
Password Security Software: With a password security software, you
can set up a two-step authentication or password security for your internal
programs to reduce the probability of hacking of passwords.
Antivirus Software: An antivirus software can be your primary defense
against most types of malware.
Firewalls: Firewalls can help provide an added layer of protection to any
hardware or software. Firewalls can help prevent an unauthorized user
from accessing a computer or network.
18.
19. 360 SECURITY
• 360 Total Security is a program developed by
Qihoo 360, an internet security company
based in China. 360 Safeguard's focus is on
stopping malware such as computer
viruses and trojan horses, and providing
security patches for Microsoft Windows. 360
Safeguard trojan horse scanner is cloud-based.
A heuristics engine is built into the scanner.
20. • What features does 360 Total Security
Provide?
• Some interesting applications contained
within this framework include protection
against online shopping hackers, blocking
potential key loggers and ensuring that an
existing webcam is not hacked for nefarious
purposes. More features are likely to be made
available as new concerns emerge
21. • Will 360 Total Security protect my system
against ransomware?
• Ransomware is an emerging threat and it
needs to be taken seriously. This system is
able to detect and thwart the majority of
these viruses. All versions provide this level of
protection. Users can therefore determine
whether or not their systems may be at risk.
22. • What antivirus engines does 360 Total
Security employ?
• This package works in synergy with
Bitdefender and Avira. These are two of the
most powerful engines on the market today,
so we can be assured of superior levels of
coverage (particularly with more advanced
threats). The free version also utilizes these
effective tools.
