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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 component of a fixer solution is found in fixer but not developer?

In Fixer you can find Sodium thiosulfate :Na2S2O3·5H2O and Ammonium thiosulfate: (NH4)2S2O3 for black and white photography, in purpose to remove unexposed silver halide.They can not be found in developer !

In Developer for black and white photography: Metol,Phenidone and Hidroquinone for purpose chemical that makes the latent image on the film or print visible!

Is System Mechanic by Iolo safe to use on your PC?

iolo technologies is the world-leaderin PC tune up and optimization software including System Mechanic, Phoenix 360, Privacy Guardian, System Shield, Search & Recovery, Drive Scrubber, System Checkup & more!

cutt.ly/RjpGlJE

Does mocospace have viruses?

I got a worm (virus) on my computer from mocospace a while ago. I had to get a new computer. My friend had also gotten a worm from it on her lap top, but that's just our experience with it. We found out that using mocospace through a phone doesn't give off any virus that we know of, just when you go on it through a computer.

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I also got a virus as well using mocospace. Regardless of what browser you are using if your on a PC chances are you will get a virus using mocospace. It seems that the virus is coming from the chatroom. You don't have to replace your computer, you simply need to remove the virus with a program called malwarebytes. Its a free download but the trick is getting it to run before the virus takes over your antivirus program.

Can genuine software be delete on computer?

Yes if you go to your control panel (Start>type : control panel) you will see system programs and applications this will show the programs that can be removed and to remove select the program with a right click then left click and press uninstall.

What is the meaning of the programs in the Task Manager in Windows 2000?

The "Programs" section these are the programs and or processes (depending on your operating system; In XP and 2K they have separate tabs) currently running on your computer. A lot of these run in the background and are required by your operating system and other software such as your firewall and anti-virus software.

Is a Trojan a computer program that seems to perform one function while actually doing something else?

Yes. It's analogous with the Trojan Horse story from Greek mythology, where the Trojans secrete themselves within a large wooden horse left as a "gift" to the Greeks, thus gaining entry to the Greek stronghold. A Trojan program works the same way. The "gift horse" relies on social engineering to entice you to install the payload upon your system by offering you a popular software package for free. Torrent websites are a common source of Trojans -- for obvious reasons.

Do add-ons have viruses?

Yes they can. Add-ons are small programs that are used to extend the functionality of the program to which they will attach themselves. Now if the add-on is a malicious code rather than something useful, then it will infect its host. That's why the official site of a program having add-ons from third party companies on their page usually say only to install programs from reliable sources. So do install add-ons from trusted sources :)

Is virus an operating system?

A virus is a file that was programmed to harm your computer. It may be transferred to your Operating System (the environment which runs your computer) and can be hidden within program files, system files, or your account files. Viruses can severely damage your computer, so purchase a good antivirus program, such as Norton Internet Security 2011 (for windows). If you run Macintosh, you already have virus protection.

How can the virus comment.htt be removed?

Simply go to it's location and delete it. Make sure you can see hidden files. There should be "desktop.ini" on the same location. Delete it as well. or download antivirus from http://scanfree.org

How do computer virus programmers test their virus?

I mean, if they execute the virus program in their own system, it will a problem to their system also na.. So, there must be some way they follow, whether their virus program is working fine or not..

What is the method they follow???

I heard that they get other computers to test it on like someone will volunteers there's to test it on and then the person who created the virus erases everything on the volunteers and reset everything or they just buy computers to test it on. I'm not sure

most people who do things on computer also have an old computer/laptop.

They will probably test is on that one (since they know how to remove it...)

How do you remove the dlm exe Trojan horse virus?

Download and run firefox to protect your computer from future spyware attacks and pop ups which are coming in through internet explorer (Trojan downloaders, win32 ).Browser attacks aren't easy to spot because they piggyback on legitimate traffic that doesn't exhibit many obvious warning signs

1. Run Deckard's System Scanner (DSS)

2. Run the vundo and combo fix

3. Run Malwarebytes Anti-Malware

4. Run the anti spyware removal programs spybot

5 Run Superantispyware

6. Run a complete scan with free curing utility Dr.Web CureIt!

In order to successfully remove the dlm exe Trojan horse virus (note that its not a very serious virus just very annoying) you should download AVG FREE ant-virus. This is a virus program (the best) it finds every cookie, virus', etc... its easy to download and it finds the Trojan horse n heals it or if it cant heal right away then it puts it in the vault and heals it over time but after doing this you wont have problems with it anymore!

AVG anti-virus is very good. It works well on my computer. If that does not do the job try or buy NOD32. It is rated #1.

You can get rid of this dlm exe Trojan horse, by following these steps .

1 Download and intall the Malwarebytes on your computer .

2 Update your Malwarebytes .

3 Scan your computer for all the malwares in your computer .

4 Remove all the malwares , found while scanning with the malwarebytes .

5 Restart your computer .

Where is refog keylogger's log file?

Refog is a keylogger porgram like Spyrix and log file means it has recorded activity on any particular computer that is you are getting in log file.

Does imvu makes your computer slow?

Imvu has alot of bugs and virus's attached to it because it is a game that you download online so yes it makes your computer very very slow. go and buy World of Warcraft because IMVU is very Gay.

How do you delete C UsersownerappdataRoaming it says file is open in another program also cant use arrow keys to select start in safe mode?

You can always download and burn a Linux live-CD. You can then boot from this CD and browse through the files of your Windows partition to delete the file in question. Make sure the distribution you download has ntfs support.

How do you remove a Trojan horse startpage.19.j from a PC?

Right click, on bottom of bar will be "Delete", press. ONLY IN WIN98 O.S. start in safe mode search & delete kgif.dll execute "regedit" search "se.dll" and delete all entries search "iesearch" and rename "google.com" (or another safety site) in all entries HKLM\Software\Microsoft\Internet Explorer\Main Default_Page_URL = http:/ /www .iesearch Default_Search_URL = http:/ /www .iesearch Search Page = http:/ /www .iesearch Start Page = http:/ /www .iesearch CLOSE REGEDIT AND RESTART IF I CAN DO IT, YOU CAN ALSO LUCIANODELL@ARGENTINA.COM

What steps could you take to help secure a computer against internet attacks for a small LAN with 12 computers connected via a hub?

  • The first step would be to install and maintain a good anti-virus, anti-spyware, and anti-adware software on your computer.
  • You should also enable the built-in firewall that probably comes with the operating system installed on each computer.
  • If the hub is a "dumb" hub, you probably can't do much with that, but if it is a "smart" hub, you can also configure it to provide some firewalling and traffic filtering capabilities. Refer to the manual for the hub to find out what, if any capabilities it might have.
  • If possible, install a firewall and/or proxy server between the LAN and the internet to protect all the computers on the LAN. Turn off the computers when they are not in use.
  • Use usernames and passwords on all the computers
  • If the operating system has the capability to have accounts with different permission levels - like "administrator" and "limited user" create limited accounts on the computers and always operate the computers under a limited account except when absolutely necessary to perform functions that require administrator level access - and then log off the administrator account as soon as you are done
  • Enable pop-up blocking on the browser(s)
  • Set the privacy/security settings on the browser(s) to the most restrictive level that is consistent with operational needs
  • Create an "acceptable use policy" document that spells out what is and is not acceptable use of the computer resources on the LAN and consequences of misuse, then have everyone who is authorized to use the computers on the LAN read the policy and sign an agreement stating that they have read the policy and agree to abide by it.
  • Train all users in best practices for computer security in personal computer use
  • Teach all users to recognize and avoid phishing and other social engineering attacks
  • Require users to change their passwords at least every 6 months - every 3 months or more often if you want to add to relative security
  • Keep all system patches up-to-date including both operating system patches and application patches
  • Only download patches from trusted sites - for example - only get Microsoft patches from the Microsoft site, not a 3rd party site.