Virus Malicious Software

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1 25/03/22 25/03/22 Cyber Security – Virus and Cyber Security – Virus and the Internet the Internet Cyber Security Virus and the Internet By By Adedayo O.S Adedayo O.S

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Virus Malicious Software

Transcript of Virus Malicious Software

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Cyber Security – Virus and the Internet

ByBy

Adedayo O.S Adedayo O.S

INTRODUCTIONINTRODUCTION

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Spyware, adware, and viruses can not only Spyware, adware, and viruses can not only threaten your privacy, they can reduce your threaten your privacy, they can reduce your computer's performance and even disable computer's performance and even disable your computer. Many computer users have your computer. Many computer users have replaced their computers believing the replaced their computers believing the computer is not performing well enough computer is not performing well enough when they really need to remove the when they really need to remove the malware from their systems to get that "like malware from their systems to get that "like new" performance. new" performance.

INTRODUCTION cont.INTRODUCTION cont.

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You can prevent and cure the problem of You can prevent and cure the problem of adware, spyware, viruses and other hostile adware, spyware, viruses and other hostile software by learning basic preventative software by learning basic preventative measures and learning how to take measures and learning how to take precautionary steps to protect your precautionary steps to protect your computer when removing hostile software. computer when removing hostile software.

Virus SourcesVirus Sources

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1.1.Simply visiting a compromised Web site Simply visiting a compromised Web site can cause infection if certain browsercan cause infection if certain browser vulnerabilities are not patched.vulnerabilities are not patched.

2.2.Indiscriminate downloading of software Indiscriminate downloading of software from Internetfrom Internet..

3.3.Over liberality with visitors. That is in Over liberality with visitors. That is in the the use of your Internet facility and in use of use of your Internet facility and in use of foreignforeign storage mediastorage media..

4.4.Through e-mail both from friends and Through e-mail both from friends and strangers (as attachments).strangers (as attachments).

5.5. Software piracy can sometimes lead to virus Software piracy can sometimes lead to virus infection.infection.

CHARACTERISTICSCHARACTERISTICS

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MALWARE AND SPYWARESMALWARE AND SPYWARES 1. 1. Viruses can also replicate themselves (worms).Viruses can also replicate themselves (worms).2.2. They use up memory and often bring the system to a They use up memory and often bring the system to a

halt. This can be noticed initiallyhalt. This can be noticed initially by the considerable by the considerable slowness in operation (booting, running etc)slowness in operation (booting, running etc)..

3.3. Viruses are capable of transmitting themselves across Viruses are capable of transmitting themselves across networks and bypassing securitynetworks and bypassing security systems.systems.

44.. They are capable of using up bandwidth very quickly.They are capable of using up bandwidth very quickly.5.5. They usually fulfil whatever their designer(s) had in They usually fulfil whatever their designer(s) had in

mind when mind when produced. E.gproduced. E.g deletion, theft, truncation, deletion, theft, truncation, falsification, duplication, copy, DoSfalsification, duplication, copy, DoS, corruption, corruption etc. etc.

Adware, Spyware, and Virus Adware, Spyware, and Virus PreventionPrevention

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Malware prevention requires all computer Malware prevention requires all computer users to educate themselvesusers to educate themselves

Make some system configuration changesMake some system configuration changes

Operate malware prevention programsOperate malware prevention programs

Avoid spamAvoid spam

Utilize basic computer security measuresUtilize basic computer security measures

System Configuration System Configuration ChangesChanges

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Using an browser other than Internet Using an browser other than Internet Explorer when surfing the internet.Explorer when surfing the internet.

Changing your Internet Explorer settings Changing your Internet Explorer settings to make the browser less vulnerable to to make the browser less vulnerable to being compromised if an attack occurs.being compromised if an attack occurs.

Changing your system to show file Changing your system to show file extensions for known file names which is extensions for known file names which is contrary to Microsoft's default setting. contrary to Microsoft's default setting.

Operate Malware Prevention Operate Malware Prevention ProgramsPrograms

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Please run at anti-virus/spyware/adware Please run at anti-virus/spyware/adware product on your computer.product on your computer.

Please also use a personal firewall on your Please also use a personal firewall on your computer which will prevent internet worms computer which will prevent internet worms attack and adware or spyware from contacting attack and adware or spyware from contacting their creators or downloading other nasty their creators or downloading other nasty programs without permission from you. programs without permission from you.

Avoid SpamAvoid Spam

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It is wise to avoid spam since it can It is wise to avoid spam since it can contain malware which may use contain malware which may use vulnerabilities in your email program, vulnerabilities in your email program, default web browser, or other programs to default web browser, or other programs to infect your computer. So you should guard infect your computer. So you should guard your email address carefully and possibly your email address carefully and possibly run spam management or spam run spam management or spam prevention software. prevention software.

Application for protectionApplication for protection

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Application for protectionApplication for protection

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Internet Best PracticesInternet Best Practices

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Reduce the risk of viruses. Use of anti-virus software Reduce the risk of viruses. Use of anti-virus software and keeping it current.and keeping it current.Never open suspicious e-mail messages or file Never open suspicious e-mail messages or file attachmentsattachmentsUse Windows Security Centre to manage your settings. Use Windows Security Centre to manage your settings. Adjust to the level of protection you are comfortable Adjust to the level of protection you are comfortable with. with. Download internet files from trusted sources only and Download internet files from trusted sources only and scan the files with your virus scanner.scan the files with your virus scanner.Use a firewall, Install a Microsoft Internet Connection Use a firewall, Install a Microsoft Internet Connection firewall as a basic line of defence against outside firewall as a basic line of defence against outside intruders. intruders. Use strong passwords that are at least eight characters Use strong passwords that are at least eight characters long and a combination of lower and upper case letters, long and a combination of lower and upper case letters, numbers and symbols. numbers and symbols.

Block Pop-upsBlock Pop-ups

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How to download CorrectlyHow to download Correctly

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THANK YOU SIRTHANK YOU SIR

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