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VIRUSES auto run virus

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Try installing an anti virus i recoment nod32 you can get a free version which performs the same but has a limited 30 days virus definition update


hope it helps

email me at liquidmercury14@yahoo.com

Posted on May 09, 2008

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Scan by disabling system restore (you can download avast4.8 from www.avast.com)

Posted on May 09, 2008

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How to avoid viruses?


computer-virus1-300x220.jpgI guess you know that computer viruses are everywhere. This guide will help you and your computer avoid being infected by viruses. There are many ways to help you prevent being infected by viruses having a good and an updated anti-virus will not always save you but it is one of the best way to prevent it.

Types of viruses

There are lots of types of viruses most of them are simply programs or scripts that will cause various problems or damage to your computer such as corrupted files, creating a copy of itself, deleting your hard rive files etc. Most of the viruses spreads itself by mailing themselves to people on your address book and some of them will try to convince you to open the attachment, But that trick never worked on me. In fact, I found myself emailing people just to make sure they really did send me something. It does not hurt to be safe.

Worms

Worms are different kind of virus but the same idea. Worms are designed to copy themselves a lot on a network and they usually eats up bandwidth by sending commands to servers to be able to get in. When the worm successfully infiltrate the system it will try and go into other servers from there. Some worms such as the SQL slammer will simply send themselves over and over so many times that they will clog up networks, and sometimes all of the internet. Worms usually affect servers more than home users, but again, this depends on what worm it is. It is suspected that most worms are efforts from the RIAA to try to stop piracy, so they try to clog up networks that could contain files. Unfortunately, the RIAA have the authority to do these damages and even if caught, nothing can be done.

Trojans

This type of virus is simply like a server that hackers use to get into the computer. An example of this is Subseven, it can enable a hacker to do various things such as control the mouse, eject the cd-rom drive, delete/download/upload files and much more.


MBR viruses

Boot Sector viruses are similar to file viruses but they go into the boot sector. These type of virus is hard to remove and can cause serious damage when the computer is booted, some of it's kind can easily erase all the data on your PC just by booting your computer.

Most viruses have different characteristics. For example, a worm can also be a trojan and also infect the boot sector. It all depends on how the virus is written and what it is designed to do. That's why there are not really strong structured categories, as they can easily mix one in the other.

Know the potentially dangerous files

Just like any other files, viruses must be opened before they can do damage. Most of them comes from e-mail attachments. Most of this type disguise as someone you know and convince you to open the attachment. My great advice: Never open attachments at any cost! Some viruses will infect files in programs, so opening a program will actually open the virus, maybe the same one, or another part of it.

All files have what is called an extension; This is the 3 last letters after the last period. For example, setup.exe has a file extension of .exe.

Extensions to watch out for are .exe .com .bat .scr .pif .vbs and others, but these are the most seen. .exe .com .bat .pif and .scr are valid extensions for executables. A virus writer will simply rename it to one of these and it will work the same way. .pif is a shortcut to an ms-dos program and will have the ms dos icon, but will still execute whatever code is in it, so an .exe can be renamed to .pif and be run the same way. .bat is a batch file, which can contain instructions to do various file activities, but again, a .exe can be renamed to .bat and it will execute it! .vbs is a visual basic script. For some reason, Microsoft provides this scripting language along with the scripting host to make it more convenient to design and write viruses quickly and easily, I've never seen another use for this scripting language other than for writing viruses. There are programs that are written with that language, but it is compiled into an exe. Exe is the usual extension for programs, you would not have a software CD install a bunch of vbs files all over!

Bottom line is, if you don't know what a file is just don't open it. Some viruses will sometimes be named a way as to mask the real file extension to make it look like a harmless file such as a image file. This is easily noticed, but can still be missed. Simply don't open unexpected files.

If you get something that appears like something legit, just ask the person it came from if they sent it. Most viruses use a friend's address to make it look like it comes from them. The virus does this by using the person's address when sending itself to the address book contacts.

Downloads

Email is not the only source of viruses you can also get viruses from P2P file sharing programs such as Kazaa, Bearshare, Limewire, direct connect etc.

Watch out for the size when you are downloading programs. When you see a program that you expect to be rather large such as game don't download it, don't get files that is 10KB it is more like to be a virus than a legit file. File size is not the only thing to watch I've been caught with a virus even with large files, as an exe is still valid even if junk is added at the end, so a 64KB virus will still function even if it is turned into 650MB.

You should look for icons, fortunately, virus writers don't take time to put icons. If you are downloading a setup file your setup file should have setup icon if it's blank that file is more or less a corrupted file or a virus.

Best advice after downloading and before opening a file is to scan it with an updated antivirus. but rely on your antivirus as we all know virus scanners are not perfect, if the virus has not been reported to them yet, they won't know to create a definition for it!

Changing settings to stay safe

If you happen to open a virus and you want to avoid the virus from infecting your friends the simplest to do is not to use the windows address book. It's very easy for viruses to get through windows address book and unfortunately Microsoft is not doing anything to fix it. Just put them in a spreadsheet or even better write them down somewhere. Don't use the address book!

Avoid using the auto preview some viruses can open themselves just by opening the mail. There are security holes in Microsoft mail programs that allow this. To disable auto preview on Microsoft outlook just click on the menu and remove auto preview. remember to do this for every folder but the inbox is most important. In Outlook Express, click on the view menu and go to layout. In the dialog box, you will see a check box for show preview pane. Uncheck it and click ok.

Removing a virus

Sometimes a clean install wont remove viruses the best way is perform a low level format. This is especially true of you got a boot sector virus, as even repartitioning and formatting won't quite remove it, but sometimes you can get away with an fdisk /mbr, but not all the time. Use good virus removal tools but then again clean install is always the best way to ensure that it's gone for good.


Viruses are out there, don't be one of the many infected ones! Stay alert and stay safe! Don't open unexpected files, regularly update your virus definitions and scan downloaded files!

Oct 25, 2010 | PC Desktops

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Different types of Virus and their effect's.


Different Types of Computer Viruses There are Different Types of Computer Viruses could be classified in (origin, techniques, types of files they infect, where they hide, the kind of damage they cause, the type of operating system or platform they attack) etc. Let us have a look at them…

Computer Virus is a kind of malicious software written intentionally to enter a computer without the user’s permission or knowledge, with an ability to replicate itself, thus continuing to spread. Some viruses do little but replicate others can cause severe harm or adversely effect program and performance of the system. A virus should never be assumed harmless and left on a system. Most common types of viruses are mentioned below:

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Resident Viruses
This type of virus is a permanent which dwells in the RAM memory. From there it can overcome and interrupt all of the operations executed by the system: corrupting files and programs that are opened, closed, copied, renamed etc.

Examples include: Randex, CMJ, Meve, and MrKlunky.

Direct Action Viruses
The main purpose of this virus is to replicate and take action when it is executed. When a specific condition is met, the virus will go into action and infect files in the directory or folder that it is in and in directories that are specified in the AUTOEXEC.BAT file PATH. This batch file is always located in the root directory of the hard disk and carries out certain operations when the computer is booted.

Overwrite Viruses
Virus of this kind is characterized by the fact that it deletes the information contained in the files that it infects, rendering them partially or totally useless once they have been infected.

The only way to clean a file infected by an overwrite virus is to delete the file completely, thus losing the original content.

Examples of this virus include: Way, Trj.Reboot, Trivial.88.D.

Boot Virus
This type of virus affects the boot sector of a floppy or hard disk. This is a crucial part of a disk, in which information on the disk itself is stored together with a program that makes it possible to boot (start) the computer from the disk.

The best way of avoiding boot viruses is to ensure that floppy disks are write-protected and never start your computer with an unknown floppy disk in the disk drive.

Examples of boot viruses include: Polyboot.B, AntiEXE.

Macro Virus
Macro viruses infect files that are created using certain applications or programs that contain macros. These mini-programs make it possible to automate series of operations so that they are performed as a single action, thereby saving the user from having to carry them out one by one.

Examples of macro viruses: Relax, Melissa.A, Bablas, O97M/Y2K.

Directory Virus
Directory viruses change the paths that indicate the location of a file. By executing a program (file with the extension .EXE or .COM) which has been infected by a virus, you are unknowingly running the virus program, while the original file and program have been previously moved by the virus.

Once infected it becomes impossible to locate the original files.

Polymorphic Virus
Polymorphic viruses encrypt or encode themselves in a different way (using different algorithms and encryption keys) every time they infect a system.

This makes it impossible for anti-viruses to find them using string or signature searches (because they are different in each encryption) and also enables them to create a large number of copies of themselves.

Examples include: Elkern, Marburg, Satan Bug, and Tuareg.

File Infectors
This type of virus infects programs or executable files (files with an .EXE or .COM extension). When one of these programs is run, directly or indirectly, the virus is activated, producing the damaging effects it is programmed to carry out. The majority of existing viruses belong to this category, and can be classified depending on the actions that they carry out.

Companion Viruses
Companion viruses can be considered file infector viruses like resident or direct action types. They are known as companion viruses because once they get into the system they "accompany" the other files that already exist. In other words, in order to carry out their infection routines, companion viruses can wait in memory until a program is run (resident viruses) or act immediately by making copies of themselves (direct action viruses).

Some examples include: Stator, Asimov.1539, and Terrax.1069

FAT Virus
The file allocation table or FAT is the part of a disk used to connect information and is a vital part of the normal functioning of the computer.
This type of virus attack can be especially dangerous, by preventing access to certain sections of the disk where important files are stored. Damage caused can result in information losses from individual files or even entire directories.

Worms
A worm is a program very similar to a virus; it has the ability to self-replicate, and can lead to negative effects on your system and most importantly they are detected and eliminated by antiviruses.

Examples of worms include: PSWBugbear.B, Lovgate.F, Trile.C, Sobig.D, Mapson.

Trojans or Trojan Horses
Another unsavory breed of malicious code are Trojans or Trojan horses, which unlike viruses do not reproduce by infecting other files, nor do they self-replicate like worms.

Logic Bombs
They are not considered viruses because they do not replicate. They are not even programs in their own right but rather camouflaged segments of other programs.

Their objective is to destroy data on the computer once certain conditions have been met. Logic bombs go undetected until launched, and the results can be destructive.


on Jul 09, 2010 | PC Desktops

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Virus Guide: 11 things you should know


What is a computer virus --> Computer viruses are small software programs that are designed to spread from one computer to another and to interfere with computer operation.
A virus might corrupt or delete data on your computer, use your e-mail program to spread itself to other computers, or even erase everything on your hard disk.
Computer viruses are often spread by attachments in e-mail messages or instant messaging messages. That is why it is essential that you never open e-mail attachments unless you know who it's from and you are expecting it.
Viruses can be disguised as attachments of funny images, greeting cards, or audio and video files.
Computer viruses also spread through downloads on the Internet. They can be hidden in illicit software or other files or programs you might download.
To help avoid computer viruses, it's essential that you keep your computer current with the latest updates and antivirus tools, stay informed about recent threats, run your computer as a standard user (not as administrator), and that you follow a few basic rules when you surf the Internet, download files, and open attachments.
Once a virus is on your computer, its type or the method it used to get there is not as important as removing it and preventing further infection.

on Jan 17, 2010 | PC Desktops

1 Answer

What do u when your system is rebooting on its own


If your system is rebooting on its own then first step is to make sure that your system is free from viruses.The best way to check it is run a scan on your system with a good and updated anti virus.

If any viruses found then the best option is you can format your system.
After scanning if viruses are not found then the best option is to repair your system .

Repairing your system will not affect your data.

Thanks..

Oct 12, 2010 | PC Desktops

3 Answers

I have found many viruses on my Pc how do i download a anti virus softwarew free of cost to get rid of them?


go to www.microsoftlive defender and run it and allow it to scan your computer. if it does not find the problem then go to malyrwarebytes.com and download free trial and run it and delete the programs you may find. then turn off auto backup and then do a disk cleanup and clean the entire hard drive then do a hard drive defrag rebot the computer and run it one more time once you have don this turn on auto back up and reboot computer.

Apr 16, 2010 | PC Desktops

2 Answers

What will i do about my PC?i just experiencing auto-shutdown of unit now.,what is the best solution for my problem?


take it in to a local computer shop not best buy but a localy owned computer shop and have them test it and they will be better of to help u

Sep 01, 2009 | PC Desktops

2 Answers

I have 38 viruses come though on my pc,want let me sing on to my accounts,run discs,plug in camera


Run boot up Anti-viruse disk. Next try HP start Disk. Last resort reinstall OS.

Jul 10, 2009 | HP PAVILION A6230N DESKTOP PC

2 Answers

I have a virus and stmanteec antivirus notification keeps popping up on my screen: What can I do??? Help Scan type: Auto-Protect Scan Event: Threat Found! Threat: Trojan.Zlob File: ...


If you have a virus you can not delete or if your system will not boot up correctly and you suspect a virus is the problem, a recommended solution is to start your computer in safe mode and run a virus scan. By running your computer in safe mode, non-essential processes do not start and non-core components are disabled. In other words, only the minimum necessary programs will load. Tough to remove viruses, spyware and other malware usually have no chance to run and disrupt your system and can more easily be removed.
**To run a virus scan in safe mode, you must have active anti virus software installed on your computer.
To run a virus scan in safe mode, follow these steps:
  1. If your computer is on, shut it down
  2. Power on your computer
  3. Immediately after you power on your computer, repeatedly press the [F8] key (about once per second)
  4. In the Windows Advanced Options Menu screen, use the arrows to select Safe Mode and presss [Enter]
  5. Select your current operating system and press [Enter]
  6. Select the user you would like to login under (if applicable)
  7. When your system finishes booting, click the Start button on your task bar
  8. Move your cursor over All Programs and navigate to your anti virus program
  9. Click on your antiv virus program to run it and follow the anti virus program’s normal steps to run a virus scan
  10. After the virus scan is complete, Delete all detected viruses
  11. Close out of your anti virus software
  12. Restart your computer (it should start in normal mode)

Nov 17, 2008 | PC Desktops

1 Answer

High Speed and viruses


Slowness can be caused by viruses.

Run a virus scan and see what comes up.
If there are viruses on the computer, you may want to consider Restoring your computer to factory settings.

But before you do that
Run a virus scan; go to Symantec and run it or download AVG free.

If you decide to restore to factory settings, I will be glad to help you. Understand, you will loose everything on the computer, and you will have to run all your programs again, set up your network connection and email. Very time consuming.

Apr 01, 2008 | Dell Dimension 3000 PC Desktop

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