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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
How do you install an anti-virus?
If you have internet access you download the file from the anti virus website and run it.
Or
If you have a CD you insert it into the drive and follow the instructions on the screen
To evade detection, during and after installation, malware uses five primary techniques.
Wrapping. This process attaches the malicious payload (the installer or the malware itself) to a legitimate file. When the legitimate file is installed, so is the malicious payload (which usually installs before the legitimate file does). Using static signatures to detect wrapper files is largely ineffective since new ones are easily and regularly created and often generates false positives. This technique is commonly used by Windows and OS X malware distributed via pirated software and P2P networks. IceFog is a well-known malware commonly wrapped with a legitimate-looking CleanMyMac application and used to target OS X users. On the Windows platform, OnionDuke has been used with legitimate Adobe installers shared over Tor networks to infect machines.
Obfuscation. This involves modifying high level or binary code it in a way that does not affect its functionality, but completely changes its binary signature. Obfuscation was originally used to protect legitimate software against reverse-engineering and piracy. Malware authors have adopted the technique to bypass antivirus engines and impair manual security research. Using XOR encoding is one way to do this. Hiding process and file names, registry entries, URLs and other useful information can significantly slow down the investigation/reverse engineering of new malware samples.
Packers. These software tools are used to compress and encode binary files, which is another form of obfuscation. At runtime, the packer, which is typically embedded with the malicious binary, will "unpack" the payload into memory and execute it. There are a handful of common packing mechanisms in use today such as UPX, PECompact, Armadillo and others. These techniques are extremely effective at circumventing static signature engines.
Anti-debugging. Like obfuscation, anti-bugging was originally created by software developers to protect commercial code from reverse-engineering. Anti-debugging can prevent a binary from being analyzed in an emulated environments such as virtual machines, security sandbox, and others. For example, the ZeroAccess malware implemented a self-debugging technique in order to block external debugging attempts. Another example is malware attempting to delay its execution (or sleep) for an extended period of time. This is useful for bypassing sandboxing solutions since these only keep binaries in an emulated environment for a specific period of time before classifying them as benign and releasing them to the network.
Targeting. This technique is implemented when malware is designed to attack a specific type of system (e.g. Windows XP SP 3), application (e.g. internet Explorer 10) and/or configuration (e.g. detecting a machine not running VMWare tools, which is often a telltale sign for usage of virtualization). Targeting ensures that the malware is only triggered and installed when specific conditions are met, which enables it to evade detection in sandboxes because they do not resemble the host being attacked.
Well, to some people it does cause virus, but to others it doesn't, i suggest you go to best buy or some other sort of electronic store and ask them if you could play of woozworld.
Where can you find desktop destroyer with no virus?
Most of desktop destroyer downloads have no virus but it is better to be careful with these things.
I have found one useful download link without virus or trojans.
Download link for desktop destroyer can be found below in the resource box.
Eleen:Hey thanks for it but is it free?
Valuk: Of course it is free as the game was originaly published as a freeware.
How do you remove antivirus pro 2009 wo another antivirus program?
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 ThreatFire
ThreatFire, features innovative real-time behavioral protection technology that provides powerful standalone protection or the perfect complement to traditional signature-based antivirus programs offers unsurpassed protection against both known and unknown zero-day viruses, worms, trojans, rootkits, buffer overflows, spyware, adware and other malware.
Should you use windows defender and avg antivirus together?
yes you should but it will be very protective but you wont have any visuress
Why is it best to run AVsoftware in safemode?
Limited program/driver support. More secure mode if you use without networking.
What is the most dangerous virus for computer?
Nimda appeared for the first time in 2001. Its name derived from the word â??adminâ?? which is spelled backwards. The Nimda virus damages the email box server and other computer files too much point so you have a powerful antivirus installed all times.
How can you remove a virus that prevents you from logging on to your computer?
In case your computer got infected, try the following:
- Get an antivirus program (if you don't have one already)
- Update your antivirus
- Scan all your computer and delete, repair or quarantine the infected files.
What type of program is a backdoor?
They are computer viruses that let hackers and other viruses in to your computer undetected. They are computer viruses that let hackers and other viruses in to your computer undetected.
Why are computer viruses so important?
A virus will eventually wreck your operating system files and it will need scrapping ,then you have to format everything and load in all your software,this is sometimes impossible because codes/cases of your software go missing over time,some will definitely be obsolete,its always best to cover all your bases, prevention is best,cant have too much security,if you use your computer for any banking then you leave yourself wide open to fraud if you do not get yourself a good anti virus and malware product, "window washer" combined with "spysweeper" by (webroot ) will cost about £40 a year, a must to wash all previous transactions from your PC,it washes the slack space and permanently erases your deleted files as these can be traced by expert fraudsters who use them for information allowing them to falsify your details and borrowing money in your name,
Where can you download pivot without virus?
It could be harmful if you download a fake .exe installer for guffins. causing an overwrite on the system registry. USE ANTIVIRUS! It will install three .dll files in the Guffins folder under the Program Files Directory. To uninstall gruffins that folder has to be deleted. Then delete the registy gruffins under plugins in the column software. That is in the LOCAL_MACHINE DIR in regedit. Thats why systems are running slower because the registry is still looking for thoes .dll files in that gruffins folder. You can not uninstall from control panel. I recommend passing this game up for the above reasons.
Why would your computer shuts down automatically?
There could be several causes that a computer can abrubply shut down. Cause 1:
Stuffed with lot of Videos/Softwares etc in C:/ especially could cause your RAM Memory to go low. As a result of which, the computer might slow down and gradually shut down. In such cases, try increasing the virtual memory ....but see that while increasing it shouldn't increase your max memory allotted. Cause 2:
It could also be because your computer can have bad sectors. So, see that once in a month, you run scan disk especially C:/ Drive. Cause 2:
Maybe one or more of your vital files that are supported for your smooth running of your major programs in your computer might be deleted. This deletion occurs when specific viruses could delete such files. So, see that the softwares or the programs you install is not from an unauthorized site. You can download softwares from their official sites itself. To my knowledge these are some of the reasons y a computer can shut down abruptly. Jeet
Are Trojan horses honey pots cookies and skipjacks examples of a malicious code?
A Trojan Horse can carry malicious code in it. Not all Trojans have malicious code
How can your email contain viruses?
Some email attachments contain viruses and can damage your computer and your data.
You need to maintain good internet security practices and be extremenly caution about opening attachments which you are not expecting, or when you have doubts about the origins, or the sender.
What is a Trojan horse virus for computers?
When downloading Trojan into your PC, it would be would present itself as a useful software at the start. This will literally damage your computer as soon as it has been installed into the system. Some people would receive and start installing the software; this is tricking the user into opening the program. What this does is, it could automatically change your desktop, putting unnecessary icons up. This software can fatally affect your computer by deleting files and damaging your files and folders on your system.
The term Trojan Horse for malicious software comes from the legend of the Battle of Troy. The city was impenetrable, so the enemy could not get in the conventional way. The gates were guarded and the guards would never knowingly let enemies inside. So the enemies got clever. They created a huge horse statue which they hid inside, and the city thought it was a gift and brought it inside. Then the enemy soldiers climbed out of the statue at the right moment and started killing. Then they probably opened the gates and let the rest of their men inside. So just like this legend, malicious software authors would create something that seems useful or entertaining, and the users would run or install it and either lose files or get infected with a computer virus.
Was there a virus with norton security?
Yes, you should be careful when trying to download a free version of Norton Security because there is a very convincing virus that poses to be Norton but is not. They even put a logo that looks similar to the legit antivirus program.
What are the possible consequences of computer hacking?
A lot of bad things could happen. For example, the hacker could gain access to personal information like credit-card numbers, social security numbers, etc. You could also get a number of viruses that could render your computer unusable. If you really think your computer has been hacked, you should take it to a repair shop immediately.
This is very rare however, it's more likely that you just have a virus on your computer and it is extracting information from your hard-drive. A hacker is someone who actively take information from your computer and they can be taken to jail for doing so.
What are the advantages to having AVG free virus protection?
The free download of AVG provides the computer antivirus and anti spyware protection. AVG is highly rated for customer satisfaction and the program works well.
What is the advantage of viruses?
Keylogger: this is the only type of computer virus that i think would be beneficial to someone. It is placed on the computer and hidden, every keystroke that is entered will be recorded and relayed back to the person who created the virus, it will also record web pages visited and sometimes takes snapshots of these web pages.
How can you remove virus using kaspersky?
If any virus detected in your computer kaspersky automatically shows a window with "disinfect", "delete", "skip" options You can disinfect if disinfection is possible otherwise delete it. for any questions you can ask me at http://umamahesh88.blogspot.com/ UMA MAHESH
What cannot be performed from the windows task manager?
You cannot terminate a DLL. That's why installation programs so often tell you to reboot Windows.
