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Advantages And Disadvantages Of Computer Virus

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Introduction to Virus /Trojan A computer virus is a malware program designed to negatively affect your computer and when it is executed, It makes various copies of itself into other computer programs, files, boot sector, etc. It also performs some other harmful activities like corrupting files, displaying images or unwanted messages, etc. It can spread rapidly on a network. These viruses also causes worth a billion of dollars of economic loss every year by increasing the maintenance cost, corrupting computer data, etc. In order to prevent form the computer virus many antivirus software are being developed. But still antivirus software is able to catch all the computer virus. Trojan is the type of malware which is designed in order to provide …show more content…

And now we will discuss about how we are affected by the virus and what kinds of virus are affecting us. Here we will discuss about both the traditional and the new viruses so that we will be able to protect our computers from it. As we listen to the news we hear about various electronic infection or about the loss of billions of dollars people face because the computer virus. Among those viruses the most common viruses are: 1) Viruses: It is small software hidden in a computer program. 2) Email viruses: A virus that travels after it gets attached to e-mail messages is known as email virus. And it duplicates itself by automatically mailing itself other people from the user’s email address. 3) Worms: A small piece of software which uses the computer network and security hole to duplicate itself. This kind of virus is mainly caused by the email attachments. As the worms are duplicated as it is entered in the computer network and a duplicated worm scans the network for another machine which has the security hole. Also, as the worm uses its network it expands really quickly. Some examples for computer worms is Bulubebek which was spread through email which destroyed the fire walls , code red was also a jamming worm virus in computer which helped hackers to hack the computer system from the

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This unique characters, otherwise called signatures can be a byte pattern in the virus. This is usually done using the AV software, the AV software uses the signature obtained from the signature database to detect the malware, and when a match is gotten, the AV software then alerts and prompts the user to repair or remove the file. - - Heuristic-based Detection: unlike the signature based detection, the heuristic-based detection is mainly designed to detect previously undetected or unknown viruses. Heuristics based detection detect viruses based on how they behave; that is to say the heuristic blocks the action of a file that it’s not behaving the way it is known to behave using sandbox techniques from a heuristic scanner.. - - SQL (Structured Query Language) Injection is when malicious attackers make use of SQL statements to interact with a database.

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Hi Friends! I am describing here about the Newstarads.com which I have faced some days ago in my computer system. I am just explaining here that what are the real malicious works of this virus when it attacks into your PC. Newstarads.com is a noxious site. The domain is related to a browser hijacker.

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First of all there are three of the same virus on the system that was scanned. That virus is called Win32/DH{eRUTxVzF3U} and it is one of the bad viruses that we do not want on our computers. The virus can replicate itself and attach and infect the files it attaches itself to. Once it starts to replicate itself that will take up space in your hard drive and make it so that you have less space for you to use. The virus can change the file that is in on or steal the information that inside that file, and it can send itself to other computers so that it will spread and continue replicating itself.

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35. Do we run anti-virus software on servers on all Microsoft platforms? 36. Is dial-in access into the system/network is controlled by authentication and logs?

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Also upon detecting a malware, Webroot is known to run the scan on the infected system repeatedly until the system is declared clean. Webroot is a very quick install on the system and has the silent install feature as well available in case the install has to be done without the system user’s interaction. Webroot is known to be the smallest and the lightest of all the anti-virus and anti-phishing software products which are available out there in the market currently. Webroot ranks higher than other AV solutions in certain marks like, a) providing endpoint security 150 times faster than Symantec, b) writes, opens and closes files 16 times faster than Microsoft, c) Uses almost 780 times less hard disk space to install and uses 1/3 less resources than Kaspersky, d)

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With widespread use of internet services, the network scale is expanding on daily basis and as the network scale increases so will the scale of security threats which can be applied to system connected to the network. Viruses and Intrusions are amongst most common threats that affects computer systems. Virus attacks can be controlled by proper antivirus installation and by keeping the antivirus up to date. Whereas any unauthorized access in the computer system by an intruder can be termed as Intrusion and controlled by IDS. Intruders can be grouped into two major categories which are external and internal Intruders.

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Others ways to protect a computer from virus are: if you don’t know the sender of a message with an attachment, don’t open it; back up your files often to keep your data safe from virus; use routers and firewalls to monitor your computer activity and block unauthorized entries; disable macro security settings in working with Word or Excel to prevent running without permission.

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This can help delete all the malware or malicious content on the computer’s system. This can be the only way to save a computer at times, for example if the memory storage has been filled up with worms that keep copying themselves until the system stops responding. If this is the case then deleting everything can be the easiest way to stop. Other times, the malware is not visible to the user allowing it to travel through the system’s hard drive and damage the files. It can also be disguised as useful files.

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1. Viruses Can destroy all of the data and erase all of the file or misused by the attacker. Have the anti-virus downloaded in your computer and make sure your computer is completely updated. 2. Phishing Attacker will be able to get the private information of the person and will gain access on computer Be able to recognize the fake emails from the attacker and avoid opening them up.

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The Trojans attacks the network by modifying blocking and even delete data. The last attack that I will describing is Worms, worms and viruses are similar in the way how fast they spread through the network, worms also fill up the storage space with junk the result of this slows down the

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Viruses are capsules with genetic material inside. They are very tiny, much smaller than bacteria. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS,

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1. A viruses is a non-living infection agent and can be found anywhere. it has no cell organelles. They are eliminated by the immune system. Viruses are the smallest in size of all the microbes.

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Describe different types of business documents that may be produced and the format to be followed for each. There are many different types of business documents that are used daily in business environments, for example; Emails- The fastest way to send documents and information and follow the format of recipient and subject. Spreadsheets- These are used to store information electronically.

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The following section will consider advantages and limitation of the first two mentioned types of digital forensics: Traditional (dead) and Live computer forensics. TRADITIONAL (DEAD) VS LIVE DIGITAL FORENSICS Traditional (Dead) Forensics In order forensic acquisition to be more reliable it must be performed on computers that have been powered off. This type of forensics is known as ‘traditional’ or 'dead ' forensic acquisition. The whole process of dead acquisition, including search and seizure flowchart and acquisition of digital evidence flowchart is shown on Figure 2 and Figure 3 respectively.

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