Archive for the ‘Viruses’ Category
Computer Viruses: Overview
Computers
have amazing potential. They can accomplish great tasks, communicate clearly, make things move, and that beyond human dimensions. Computers have become like men in every way imaginable, so no wonder that computers can also become ill.
increase the speed of the computer revolution in late 1980. Since then, developed to be an important factor in our society, business and personal life. Computers have become an integral part of almost everything we do and day to day. But the good is bad. Some users have maliciously created computer viruses, which have serious consequences. The scope of computer viruses, a modern network of our great significance in our lives, as all ways to attack computers. Despite our need for reliable computer, some people have nothing better to do than use the knowledge in a devastating way, the creation of computer viruses. The first computer virus called “The Brain”, was founded in 1986. The brain is a boot-sector viruses, which includes the free space on your hard disk to eliminate further use of less space. After it was created, the brain quickly spread throughout the world in 1987. Brain virus was considered to be the first to use stealth technology that makes the virus hard to find. The first November 1987 a virus appeared. The virus was named after the Lehigh Lehigh University, where this particular virus was discovered. One Friday the thirteenth, in December the same year the virus discovered the Hebrew University of Jerusalem. This virus is also the name of “Arab star,” “Friday the 13th” and “Black Box”. This is one of the oldest and best known computer viruses in the world Two more viruses appeared in 1988. Stone, who first Bootstrap viruses and worms. Internet worm has caused chaos in the business world, exceeded in the United States during the night by a series of computer networks. Since 1989, Dark Avenger was introduced. It was a fast infector that the ability to infect new files, despite the presence of antivirus software. Dark Avenger was a computer virus designed to damage the system slowly. The virus goes unnoticed at first, and corrupted files were not backed up. Do you consume more and more computer until it was permanently damaged. Computer manufacturers and software engineer, began his public battle against computer viruses around 1990. Businesses have begun to respond to growing concerns about the number of antivirus products began to rise. Threats of computer viruses finally taken seriously. McAfee, IBM, digital transmission of Iris and communicated to all anti-virus products and software in 1990. Despite the efforts of computer viruses has grown faster, stronger and sneakier. Symantec Norton Anti-Virus was introduced was introduced in 1991. The introduction of Windows 95 was both a relief and discomfort antivirus companies, when he came out in 1995. At that time, most computer viruses are still charging DOS viruses work, but could not repeat with Windows 95 then micro viruses found in late 1995. The virus is a computer in MS-Word, and not DOS. Again, anti-virus industry in the face of the challenge to fight a new group of viruses. With the advent and growing popularity of the Internet in 1990, viruses began at a much faster pace. Throughout 1998, reduced by the attacks of computer viruses MS Office, MS Windows, MS Office and web applications. New viruses continue to appear, and computers and advanced networks for proposals continue to be affected. In 1999, another virus, infected computers using Microsoft Word. The virus may have been adopted with MS Outlook or Outlook Express programs, e-mail. “Love Letter” virus, also known as the “Love Bug” and “I love you” virus, it is believed that he hit one in five computers worldwide, making it the most common and costly computer virus in the world has ever seen . “I love you virus” created panic and discord throughout the world. The virus was delivered by e-mail. When the receiver opened the attachment, the virus is automatically sent to everyone in the book dealing with the user. “I love you” computer virus spread at a dizzying pace. As long as we continue to use the Internet and share computer files, we are in danger of contracting computer viruses. Even today, more and more viruses continue to explore ways of a big problem for all users, and create additional problems for antivirus vendors. Like most people, illness is an unfortunate reality for the PC. Using up-to-date antivirus software is a kind of preventive medicine, helping to keep your computer healthy and virus control. by Daniel Davis contributes to several online magazines, trade and technology, and technology topics for small business.14 households for ways to help protect your computer from viruses
Computer viruses are deadly. They often spread without any apparent contact and can be inconvenient, or worse, death to the computer. Those who create these viruses, estimated at 10-15 new day in the electronic version of terrorists. Their goal is to inflict havoc on many people as possible by disabling, stealing, damaging or destroying computer and information services. Often they have no goal in mind, so that no one is safe. If Internet access, file sharing or other computer or download from floppy disks, CDs or DVDs on a computer are vulnerable to viruses. Fortunately, there are good working as hard as the hackers to develop vaccines for viruses as soon as you send them into cyberspace. And many things you can do to protect your computer from catching viruses in the first place Defining Viruses:. The virus is a small computer that can be copied and distributed from one computer to another, with or without the help of the user. However, viruses typically have more than just be fruitful and multiply, which is bad enough in itself, because the pig on system resources. Anything else viruses are programmed to do so, displaying annoying messages to files, the destruction is called their payload. Often they can not carry freight to the unsuspecting user does something to the virus execute programmed functions. It could be as simple as clicking on an innocent looking file attachment. Exe (executable) extension Catching the virus. Most viruses spread via e-mail because it is the easiest way to do it. Although Macintosh, Unix and Linux systems can catch viruses, hackers are particularly keen to use vulnerabilities in Microsoft’s, particularly Microsoft Outlook and Outlook Express. Due to the popularity of this software, hackers maximum value for money, and probably have less and less pleased Microsoft is big does not mean they are perfect Solution 1:. Antivirus Software The first line of defense is to install antivirus software. To be very safe, also install a firewall, now in some anti-virus package. This software allows you to scan the disk for viruses and neutralize them. Here are some of the features in the evaluation of anti-virus software to consider -. Compatibility with the operating system – Ensure that the program works with the system, especially if you have an older operating system such as Windows 98 – firewall – if not, find out if there is. If you want to buy from a supplier -. Automatic background protection – This means that the software will constantly scan behind the scenes infections and neutralize them as they appear. This provides peace of mind -. Automatic frequent updates – Because new viruses appear daily, which is regularly. It’s even better if they come automatically when you connect to the Internet. If automatic update is not listed, you must meet the manufacturer’s website and download the updates to check. This is important because it will not be protected against new viruses where software is outdated -. Disaster recovery – Software with a tool to help you get your system back to normal after a virus attack is always good to have -. Certified by ICSA – International Computer Security Association has standards for the rate of detection of anti-virus software. Make sure the software is certified by ICSA -. Support – It’s a good idea to pack Free technical support via the Internet or through the Toll offer a free choice of numbers. If you ever felled by a virus, it is needed. Some antivirus vendors Symantec Corporation (Norton AntiVirus), McAfee Corporation (McAfee VirusScan), Trend Micro Inc. (PC-Cillin) and Zone Labs Inc. (Zone Alarm Suite). Solution 2: Virus Scan If you have a particularly juicy attachment that you dream to open, save it on the Windows desktop and run your antivirus software first. To do this, click once gently on your desktop … not very open … Then right-click and choose Scan with (name of anti-virus software) to enable virus scanning. If it is infected, the antivirus software in order to neutralize or at least say that the attachment is too dangerous to open. On the other hand, I do not feel guilty if you mean savings of potentially malicious files on the system enough to desire to open it and let you delete the right under the Solution 3:. Delete first, ask questions later. sure of the origin of the e-mail, it is best to do is delete without opening or viewing. However, some viruses such as Klez, propagate by fishing in the address book and send them from any contact, you will find another random contact. You can use the virus to people in your address book, even if you do not have e-mail is not everything. He gets it from someone in the book that really makes life confusing. Due to the proliferation of pornography on the Internet, try e-mail viruses often victims of sex with names such nudes.exe. They do not belong to Solution 4:. Watch out for false alarms virus E-mail warnings about viruses are almost always joking. You may be inclined to believe them because of their generally well-meaning friends that are friends, etc. These messages are usually not viruses, but some actually fell into the hands of hackers who loaded viruses and happily on their way to a weak joke. proliferation of e-mails about virus hoaxes can become nearly as bad as a real virus. Think about it, if you listen to e-mail that says to forward to everyone in your address book, and they do it, and it is long enough, you can access the Internet to its knees. If you ever want to see warnings about viruses that antivirus vendors to a fraud on the Internet. It is in the business of providing permanent, so you will know what a virus is real Solution 5:. Avoid extension file name extension three characters that come after the dot. Windows are hidden by the file extension by default, but this is not a good idea. . Just seeing suspicious extension and delete the file before opening can be saved from infection To see the extension in the directory lists the Windows XP desktop, click Start | Control Panel | Folder Options | View tab. Check the box Hide file extensions for known file types. Click Apply | OK. System files are still hidden, but you will be able to add all the files that need to be concerned about. Viruses often live on files with these extensions -. VBS, SHS, MTP, ink -… I almost never legitimately used for attachments Solution 6:. Turn off the SHS extension dangerous extension you can easily switch .. SHS. Windows does not recognize it and let you know before you try. Shs. Enlargement is usually only used for “scrap object” files created in Word and Excel, and select text and drag it to the desktop for pasting into other documents. If this is not something we never, or you have Word and Excel 2000 or later, providing up to 12 products on the clipboard, click Start | Control Panel | Folder Options | File Types tab. In the Registered File Types, scroll down and highlight the SHS extension. Click Delete | Yes | Register | OK Solution 7:. Dealing with double extensions When the extensions in Windows, you’ll be able to detect viruses that piggy-back on their innocent looking files with double extensions, such as happybirthday.doc.exe. Never trust a file with a double extension – it is contrary to nature Solution 8: .. Beware of unknown files, exe The virus is a program to perform the dirty work for her, so it is possible. Exe. Unfortunately, this is the name used by legitimate program files. So do not panic if you can find a file named Word.exe or Excel.exe in the system – giving Microsoft software. Just do not always open the file with a. Exe, if you do not know for what purpose the list Solution 9:. Watch for signs Viruses in attachment files have been known characteristics of known-looking icons, text or image file, like a wolf in the house take. If an unexpected attachment, do not open it without using antivirus software Solution 10:. It is not available on public forums What better place for a hacker to join and stick his virus than in the middle of the crowd? Sooner or later, someone has the virus and get things going. Do not download files and programs from newsgroups or bulletin boards, or open your e-mail from strangers in chatrooms (“Let them exchange pictures!”) Without scan antivirus Solution 11:. Avoid bootleg software This may seem like a no-brainer, but sometimes a small price to package popular, but expensive, may be too good to resist. Resist! Also be careful on software companies adopt. You do not know where he is and what may have started out as a perfectly clean package could have become infected during installation on another infected computer Solution 12:. Protect macros in MS Word, Excel and Powerpoint common type of virus uses macros. Macros are sets of stored commands that users can save as shortcuts to perform long functions in just a few minutes. A macro virus may perform mischief changing file types from text files and spreadsheets into templates, locking the keyboard and delete files. Word, Excel, and PowerPoint from Continue Reading
Truth and lies about Computer Virus
Walk in any computer store today and will be at least twenty-or thirty-virus software. From the looks of a computer virus is and discontinued operations. Computer user will break through the media to promote apocoliptic virus and shareware programs and discover the true facts. Before you even begin to examine a computer virus must first eliminate all the “fluff”. The computer needs to understand how the virus reaches the public. Someone created the virus and infected at least one computer. Failure or ruin virus infected computer. Receive a copy of the antivirus companies and virus testing. Antivirus companies is “impartial” decision on the virus, and then publish their findings to the public. The problem with the current system is that there is no checks and balances. If the antivirus company wants to make viruses seem to be worse, they all have to do is to distort the truth. There is no organization that certifies Registered Wheather or not the virus is real. Even more dangerous is that antivirus companies can write viruses in order to sell their programs. Software companies and to distort the truth about viruses. “Antivirus companies believe even small changes in advertising viruses. The first time the virus appeared Marijuana, for example, included the word” seal “, but later changed her wicked reading” stamp. “Any program that detects the virus can detect the original version with one letter changed -. and antivirus companies often list them as” two “viruses I went to the McAfee Anti-Virus pages for information about Marijuana virus but failed to get the information but I was in able to obtain a copy of the ten viruses on their side, in particular, a virus known as Junkie: .. “Junkie is a multi, memory resident, encrypted viruses. Junkie especially targets.COM files in DOS boot sector on diskettes and Master Boot Record (MBR). After the initial infection is in the form of a virus infecting a file, Junkie infects the MBR or floppy boot sector, outside VSAFE (Anti-Virus-and-hold-Resident program (TSR), which included the MS-DOS sixth X), and many in Side 0 , cylinder 0, Articles 4 and 5 of the virus has become memory resident or infect files in a given time. Later, when the system is booting from the hard disk with the system, the virus becomes resident Junkie memory on top of system memory in DOS 640K limit traffic stop 12 return. Once memory resident, Junkie starts infecting.COM files as they are performed, and corrupts.COM files. The virus infects diskette boot Junkie sectors, because they are available. The virus saves a copy to the last track on the floppy disk and then change the boot sector to the point of this Code. High-density 5.25-inch floppy disk virus code is located on the cylinder 79, side 1, Article 8 and 9 “Description Junkie is that the basic hide / Trojan virus, which is already 10 years. They also recorded an anti-EXE as one of the ten viruses and do not acknowlege that has three aliases. No wonder that the public is confused by computer viruses, I decided to investigate any missing or diss the information a bit further. I went to the site on the Internet Data Fellows F-PROT distributor had to say about the virus is not surprising that I found them to try to look at the software of the typical methods of intimidation. More recently, we read in the newspapers, like the CIA and NSA (National Security Agency) managed to hack into the system, the European Commission andaccess confidentiality of GATT negotiations. Stolen information was then used in negotiations. The Commission rejects the allegations, which is common in cases where information security breaches. In early June, news from the UK, said publicly about the incident in which British and American banks paid a ransom of £ 400000000 keep offenders who hacks into systems, promotion of weakness [London Times, 06/03/1996]. sums involved are simply enormous, especially since all those millions he bought only silence. Times, bank representatives said that the money was paid, because “Talk Such attacks can be damaged. consumer confidence in the safety “of criminal hackers probably welcomes the fact that in most cases, victims are not willing to report incidents to the police and that’s not all. Assuming that the information provided in the London Times is right, they can even earn ‘charges’ for a break a. .. computer is hacked into the Internet, every 20 seconds … Whatever the truth of these events may be the fact that existing information systems are quite susceptible to penetration from the outside as the Internet becomes increasingly popular and is spreading ever wider , criminals can break into the growing number of systems easily andwithout real danger of being caught, “The next paragraph says:” .. Even in the early stages of F-Secure Products Ltd members meet many of these requirements is. The aim of continuous product development in the end take all the security needs of information. “In other words, nothing is safe unless you buy their products. Now that you have cleared the smoke from viruses, we know that there are only about 500 primary virus. These viruses are the amendments change the name and recycling. So, what is a virus? First, we know that there is no universally accepted method of naming conventions or virus detection. The virus is subjective, and interpretation of data and is subject to ongoing debate. To identify the virus, we need to ask an expert. According to Fred Cohen, a computer virus is a computer program that can infect other computer programs by modifying them in such a way that it (possibly evolved) copy. This does not mean the virus is the cause of damage, because the virus can be written to collect data and get the hidden files on your system. Now that you are aware of the jokes and miss-information about viruses, better prepared to cope with the information of the virus. The next time you hear from the killer virus Just remember what you have learned. You know that all viruses have the same roots.
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