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Computer Viruses
Computer viruses are harmful pieces of software which can reproduce themselves and automatically spread to other computers and networks. Questions about computer virus techniques and specific computer viruses belong here.
5,673 Questions
What will the windows update express button download onto your computer?
If you click the Express button, Windows will grab any high-priority updates, these are security patches, and install them to your computer.
ALT+F4 is a good way, if you want to minimixe do Windows key+d and if neither of these work try ctrl+alt+delete Proccess and end its process
How do you remove Trojan horse vbjvc?
You need to run these 5 essential steps to remove all the spyware on your computer.
1. Run Deckard's System Scanner (DSS)
2. Run Malwarebytes Anti-Malware
3. Run the anti spyware removal programs spybot
4 Run Superantispyware
5. Run a complete scan with free curing utility Dr.Web CureIt!
Install threat fire which will enhance your antivirus protection
Types of computer virus and their reaction?
There are several different types of computer viruses, but a few include boot sector viruses, mass mailer viruses and file deleting viruses. Boot sector viruses affect the Master Boot Record in the first sector of the computer's hard drive. Mass mailer viruses replicate by emailing themselves to any email stored in an email program's contact list, and file deleting viruses delete critical system files.
What is dynamic packet filtering?
A packet filter is a mechanism used to provide a level of digital security by controlling the flow of information (data packets) via the examination of key information in packet headers. A packet filter determines if these packets are allowed to go through a given point based on certain access control policies.
A dynamic packet filter (DPF) builds on the concepts of a normal packet filter but with increased intelligence. Traditional packet filters are often slower and more difficult to manage in larger networks with complex security policies
A stateful packet filter (SPF), quite simply, manages and maintains the connection state of a session through the filter to ensure that only authorized packets of a policy are permitted in sequence.
How much is it to hire geek squad to build your computer?
Geek Squad does not build computers as per their policy. They will install parts at $50 a part, but will not install motherboards. In theory, if Geek Squad were to build your computer, with only the most basic required parts, here is the cost breakdown for installation prices only, parts prices not included.
Power Supply: $50
Motherboard: $50
Video Card: $50
Memory (1-2 Sticks): $50
Hard Drive: $50
DVD/CD Drive: $50
Total: $300 + Parts
Unless there's a very specific reason why you need a custom built computer, if you don't know how to build one yourself, your best decision financially is to buy a pre-built computer.
Otherwise, between parts and labor, your computer will cost between $1400-$2000 for the same parts and features that you can get in a pre-built computer for $800-$1000.
How do you turn off your anti virus?
Yes, of course.
If you want to "turn off" the AV without uninstalling it.
Then
1.In the taskbar in the lower right corner exit the tray icon of your AV.
2.Click start,
3.Select run,
4.Type msconfig and hit enter.
5.Goto the startup tab.
6.There would be every option that runs on startup.
7.goto your antivirus option and uncheck it.
8.Restart Computer.
9.Done
NOTE: Unchecking other than system programs such as ACDsee Device Detect can fasten up your computer.
If you want to bring AV back first undo 7th step and double click your AV icon.
Step 1: If you purchased Kaspersky Anti-Virus version 2009 on a disc, then the installation process starts automatically after the Setup disc is inserted into the CD-ROM drive. If you have purchased the product in E-Store you get a link to an executable setup file which should be launched manually. If the Setup disc does not run automatically you also need to run the executable installation file manually. For it select a disc and a folder where Kaspersky Anti-Virus version 2009 setup file resides and double-click the executable file. After you run the executable setup file the Setup Wizard of Kaspersky Anti-Virus version 2009 is launched.
Click Next to continue.
Step 2: End user license agreement of Kaspersky Lab.
Choose I accept the terms of the license agreement and click Next to continue.
Step 3: Select the installation type that best suits your needs:
Express installation - full program installation with default settings
Custom installation - installation with the possibility to choose which program features to install.
Click the Express installation icon to continue installation.
Step 4: On this step the Setup wizard copies program files on the hard drive and registers the program components.
Click the Install button to continue.
Step 5: Once the program features are copied and the modules are registered the Setup wizard suggest activating Kaspersky Anti-Virus 2009\ Kaspersky Internet Security 2009.
Click Next to continue.
Step 6: The Setup Wizard analyzes the system information and creates rules for trusted applications from the Windows OS distributive. Wait until the process is over.
Step 7: The Setup Wizard suggests taking part in the Kaspersky Security Network system. This system allows automatically sending the information about infected, suspicious objects on your computer as well as collecting statistics about downloaded and started applications. This information is processed by Kaspersky Lab's experts and allows reacting to new types of threats on your computer more operative thus improving quality of our products. Click Next to continue. Click Yes, if you agree to participate in Kaspersky Security Network.
Click Finish to complete installation of Kaspersky Anti-Virus 2009\ Kaspersky Internet Security 2009. Your computer will be restarted automatically.
Why is the PDF format commonly used for email attachments?
Because PDF format is more or less 'universal' - Almost all word processors can read documents in PDF format.
Icons are part of the GUI (Graphical User Interface) and the GUI lets you interact with the computer's operating system, such as letting you create documents, view pictures, run a program, etc, to name a few. Without GUIs, we would still be using CUIs (Console User Interfaces) where you type commands in a black window with white text. This is very boring, hence why the GUI was made.
How did the code red virus spread?
well guess what i know who created it and how it spreads first of all i created it and it is spreaded by using a butter knife or using the toilet or (going potty). thank you for listening.
by:junior watson
A virus is something that infects cells and makes them produce more of the virus.
How do you do a virus check on your computer?
Your virus protection is listed in the installed programs list, and should also have an icon on the desktop for Windows, or an entry on the list generated by clicking the Start button at lower left. If no virus protection is installed, you may be prompted to start either Windows Defender or Microsoft Security Essentials (both are free for all Windows PCs). There is also anti-malware in the Action Center for Windows 7 and Windows 8.
Do frost wire cause virus on computers?
The answer to this question is both yes and no. FrostWire the p2p client itself will not give you a virus. The software is clean. However, if you happen to download an infected file (let's say an infected torrent file for example) you may download a virus. I have used FrostWire and have never contracted a computer virus from it but that doesn't mean you won't. I would suggest that you never use a (Gnutella) client like FrostWire to begin with. What I suggest you do use is a good Bittorrent client like Utorrent (a pure Bittorrent network client) and download your files from a reputable torrent site like BtJunkie.org. Sites like this one have forums where users leave comments on the files in question. Also the files are verified by the community. So you won't ever need to worry about downloading a virus. Remember that a file that is heavily seeded will more than likely never contain a virus. http://www.sectone-pc-solutions.com/
Well, if you suspect you have a virus, the best thing to do is to get virus protection. Unless you want to do it the old fashion way and reboot (not restart) your computer, but you really won't need to do that unless it's a major virus that anti-virus can't kill, plus you can lose files that way. There are some free anti-virus protection software. One is called AVG it should be free, I recommend getting it off a trusted site like Cnet. NOTE: When you get virus protection, make sure you don't another virus protection enabled with it, it can mess up your computer, so make sure all virus protections are uninstall before downloading a new one.
Why should you regularly update your anti- virus software?
New threats are found almost every day. The software needs to be updated in order to fight these new threats.
The updates to anti virus and anti malware software adds information to the software describing identification characteristics of newly discovered virus programs. Without the updates, these virus programs would not be recognized and would continue to function.
New viruses are discovered all of the time. An anti-virus program can only protect against the threats that it knows about. When a new virus is discovered, the AV company writes new code, called a definition, for the anti-virus program so that the program knows what the new viruses look like. When you update your AV program, it downloads the new definitions, then starts looking for the new viruses listed in the definition.
Antivirus programs rely on snippets of viral code, usually called definitions or signatures. By scanning files and comparing them to these definitions/signatures, the program can determine if a file contains a virus.
New viruses appear every day, usually variants or modifications of existing viruses. If the antivirus program you use doesn't have updated definitions, it can't recognize new viruses, leaving your computer and any data on it vulnerable to infection or compromise.
Antivirus software is a computer program that detects, prevents, and takes action to disarm or remove malicious software programs, such as viruses and worms. You can help protect your computer against viruses by using antivirus software, such as Microsoft Security Essentials.
Computer viruses are software programs that are deliberately designed to interfere with computer operation; record, corrupt, or delete data; or spread themselves to other computers and throughout the Internet.
To help prevent the most current viruses, you must update your antivirus software regularly. You can set up most types of antivirus software to update automatically.
How can viruses duplicate themselves?
Viruses are noncellular genetic elements that use a living cell for their replication and have an extracellular state. Viruses are ultramicroscopic particles containing nucleic acid surrounded by protein, and in some cases, other macromolecular components such as a membranelike envelope.
What should you do if you suspect your computer may have been compromised by malware?
find the compromise, eliminate it, secure your data better.
What does a all in one computer security system protect against?
Answer: To answer this question properly, we have to look at the evolution of security threats as well as the evolution of system security software. The first computer virus, known as the Creeper virus, was an experimental self-replicating program written by Bob Thomas at BBN in 1971. Creeper infected DEC PDP-10 computers running the TENEX operating system. Creeper gained access via the ARPANET (see note below) and copied itself to a remote system where the message, "I'm the creeper, catch me if you can!" was displayed. Note: APRA (Advanced Research Projects Agency Network) was created by the United States Department of Defense during the Cold War and was the world's first operational packet switching network, and the predecessor of today's global Internet. While hard to believe, it was only in 1991 that the World-Wide Web was introduced. It had been developed by Tim Berners-Lee, with assistance from Robert Caillau (while both were working at CERN). But as far back as 1971, Bob Thomas had created the first virus which was basically a harmless and experimental self-replicating program. To make a long story short, the details of the experiment eventually leaked out and its concept was plagiarized and honed by computer gurus albeit; the global Internet was still some years away. By the time that the global Internet was finally introduced in 1991, groups of computer pranksters slowly began to infest the Internet with basically harmless viruses. However, towards the late 90's, computer viruses had evolved to a level whereby they were actually causing file damage to infected PCs. While this claim cannot be fully substantiated, it is believed that Message Labs, now part of Symantec, introduced the first commercially available anti-virus program in 1999 and hence, the first generationcomputer security threat system was born. Over the next two years, computer pranksters had developed a computer security threat that in many ways, was significantly more serious than the virus. This new threat is currently known as Malware or Spyware. Then companies, such as Symantec and Webroot, to name a few, introduced anti-spyware software. For an average PC to be protected, the PC's owner had to have both an anti-virus & anti-spyware program to ensure adequate security threat protection. However, it soon became apparent that having an anti-virus program running concurrently with an anti-spyware program consumed so much system overhead, that it drastically reduced the performance and stability of one's PC. To address this issue, developers of computer security threat systems then combined both functions into one software package giving birth to a second generation computer security threat system. While still demanding on system overhead, it was tolerable. At around the same time, a new security threat emerged which today, is known as computer hacking. Although Microsoft PC's had a built-in firewall, hackers were able to get around it resulting in 3rd party companies, such as Symantec and Webroot, to develop their own firewalls. Despite the best efforts of Security threat protection systems and improved 3rd party firewalls, it seemed as if the hackers were always one step ahead. This situation now led to a third generation computer security threat system that amongst other things, was an "all-in-one" security system. Now, I can properly answer the question: How do computers benefit from having all-in-one security system installed The benefits of having an "all-in-one" security system include: 1. Improved system performance: Rather than having a mishmash of anti-virus; anti-spyware and firewall components thrown together, software developers decided to completely redesign security threat software from the bottom up. This redesign in tandem with more efficient programming tools produced security threat software that was lean & mean on system overhead. Gone were the days when running a security threat program virtually consumed 50% to 60% of a PC's resources. 2. Sophisticated threat detection: New methods of detecting viruses and spyware were introduced such as heuristic analysis, which is an expert based analysis that determines the susceptibility of a system towards a particular threat/risk by using various decision rules and/or weighing methods. The logic here is simple: If a particular string of programmed code (on one's PC) has many of the attributes of a known virus or spyware; then in all probability it is. Other sophisticated detection methods may include: (a) AntiRootkit; (b) AntiPhishing; (c) EmailScanner and (d) AntiBot technologies. 3. Real-time detection:Previous generations of security threat systems were reactive in the sense that they were designed to detect viruses and spyware that had already infiltrated one's PC. On the other hand, most quality security threat systems have been designed to proactively intercept viruses and spyware before they actually infiltrate one's PC. 4. Firewall protection: New generation security threat systems generally provide increased firewall protection by employing (a) 2-way Personal Firewall; (b) Safe Wi-Fi and VPN connections and (c) advanced Intrusion Prevention technologies. In conclusion, most "all-in-one" security systems benefit one's PC through improved PC performance and stability in addition to proactively intercepting known threats and suspected threats before they can infiltrate your PC. Improved firewall techniques significantly reduce the risk of hacker intrusion. I am a recently retired computer engineer and have personally tested several categories of software including Security Threat suites. There are two that I have had excellent results with namely, Avira AntiVir Premium and Kaspersky Internet Security 2009. Both can be downloaded on a 30-day trial basis.
What are some ways that computer viruses spread?
Computer viruses, or malicious sections of code intended to damage a computer system, spread in several ways. True viruses are self-replicating, meaning that there is a piece of code causing them to copy and distribute themselves. By:
Posing as something useful (known as a Trojan horse) ie a download, a gift from a friend, etc. Current scam is a 'gift card' or an 'ecard' email that tries to run a malicious script when opened. Because you gave the computer the command to open the file, the virus has an easy path in. By:
Emailing itself - will search for anything fitting an email address xyz.com and then send itself there. By:
Infecting a 'clean' file without the owner's knowledge - lots of viruses can be spread this way, by people downloading files from safe sources that have been hacked by people intent on spreading viruses. By:
Using networks - if one computer on a Local Area network or wireless network is infected, this type of virus will infect every computer on that network if not blocked by a suitable firewall. By:
Using removable media - usually, disks, USB drives, external hard drives, floppies, CDs etc. are not checked by the virus scanner when they are inserted, so a virus hiding on one can get onto the computer unquestioned. Most viruses are spread by 'freaks' or people who hack computers and write viruses because they are essentially twisted people who enjoy causing damage. Some are more targeted, ie stealing information or money, or destroying particular programs. All of them have the potential to do great damage, and there are more ways to spread them than mentioned above.;
How can you tell if an antivirus software is reliable?
Look around online and read some reviews about the software you are interested in purchasing, or ask a member of our family that may know about computers. Look for a program with great protection. But in the end it all comes down to personal opinion.
What is a filtering program that stops pop-up ads from displaying on webpages?
Most browsers like Google Chrome and Mozilla Firefox have automatic popup blocking. Some antivirus programs like Norton have additional popup blocking features.
What equipment do you need to send an email?
You need a computer, an operating system (like Windows) a modem and some kind of internet connection (either dial-up or High speed) from an Internet Service Provider (ISP) and of course you'll need some kind of e-mail program (like Outlook Express).
