Filipino Computer Hardware Servicing Technician from Roxas, City Capiz Philippines (Region 6 Western Visayas) for more information contact me via email at renanorola@hotmail.com

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Worms and trojan horse viruses in e-mail messages

January 22, 2008


When a computer virus infects e-mail messages or infects other files on a computer, you may notice the following symptoms:

• The infected file may make copies of itself. This behavior may use up all the free space on the hard disk.
• A copy of the infected file may be sent to all the addresses in an e-mail address list.
• The computer virus may reformat the hard disk. This behavior will delete files and programs.
• The computer virus may install hidden programs, such as pirated software. This pirated software may then be distributed and sold from the computer.
• The computer virus may reduce security. This could enable intruders to remotely access the computer or the network.
• You receive an e-mail message that has a strange attachment. When you open the attachment, dialog boxes appear, or a sudden degradation in system performance occurs.
• Someone tells you that they have recently received e-mail messages from you that contained attached files that you did not send. The files that are attached to the e-mail messages have extensions such as .exe, .bat, .scr, and .vbs extensions.
Posted by renanorola at 11:36 am | permalink | Add comment

Computer Virus infection

If you suspect or confirm that your computer is infected with a computer virus, obtain the current antivirus software. The following are some primary indicators that a computer may be infected:

• The computer runs slower than usual.
• The computer stops responding, or it locks up frequently.
• The computer crashes, and then it restarts every few minutes.
• The computer restarts on its own. Additionally, the computer does not run as usual.
• Applications on the computer do not work correctly.
• Disks or disk drives are inaccessible.
• You cannot print items correctly.
• You see unusual error messages.
• You see distorted menus and dialog boxes.
• There is a double extension on an attachment that you recently opened, such as a .jpg, .vbs, .gif, or .exe. extension.
• An antivirus program is disabled for no reason. Additionally, the antivirus program cannot be restarted.
• An antivirus program cannot be installed on the computer, or the antivirus program will not run.
• New icons appear on the desktop that you did not put there, or the icons are not associated with any recently installed programs.
• Strange sounds or music plays from the speakers unexpectedly.
• A program disappears from the computer even though you did not intentionally remove the program.

Note These are common signs of infection. However, these signs may also be caused by hardware or software problems that have nothing to do with a computer virus. Unless you run the Microsoft Malicious Software Removal Tool, and then you install industry-standard, up-to-date antivirus software on your computer, you cannot be certain whether a computer is infected with a computer virus or not.

Posted by renanorola at 11:32 am | permalink | Add comment

Storage Buying Tips

If you found this Buying guide helpful explore more of PC magazine’s buying guides at www.pcmag.com for all kinds of products: desktop PCs. digital cameras, displays, networking, PDAs, printers, and security.  

1. Buy more DAS (direct - attached storage) that you think you need.

2. TAke advantage of low - priced IDE or SATA storage for entry - level servers.

3. For files servers, consider inespensive RAID 1 (mirroring) options that use IDE or SATA drives. They provide the protection of RAID but cost less than SCSI RAID solutions.

4. Use SCSI RAID 1 or SCASI RAID 5 arrays with hot swappable drives for all critical application services and database.

5. Consider network attached storage (NAS) appliances for remote office file and print services. In many cases, they can obviate the need for a server.

6. Use NAS as an alternate to tape backup for easy  access data protection and archiving.

7. Conserve space in the date closet buy purchasing rack mount servers, storage devices, or NAS appliances. Even small companies often have racks for patch panesl and networking switches.

8. Consider you data protection and backup strategy before you buy. Backuping a multiple desktops, servers, and volumes can get complex. If possible, consolidate and simplify storage to ensure that your data is protected.

9. It often doesn’t play to upgrade an older server with more storage. Purchase a new server with abundant memory and storage.

10. Keep it simple. Don’t create complex storage subsystem that you can’t fix with outside intervention. 

 

Posted by renanorola at 11:01 am | permalink | Add comment