New viruses are being developed every day. New techniques may render existing preventive measures insufficient. The only truth in virus and anti-virus field is that there is no absolute security. However, we can minimize the damage by identifying virus infections before they carry out their payload. The following lists some ways to detect virus infections:
· Watch out for any changes in machine behavior. Any of the following signs could be symptoms of virus activity:
Programs take longer time than usual to execute
Sudden reduction in system memory available or disk space
· A memory-resident anti-virus software can be employed to continuously monitor the computer for viruses.
· Scan your hard disk with an anti-virus software. You should make sure that an up-to-date virus signature has been applied.
· Employ server-based anti-virus software to protect your network. You should also consider employing application-based anti-virus software (e.g. those running on Lotus Notes) to further protect your machine.
3.1 How to clean virus?
Virus has been found? Don't panic! The following are some pieces of advice about removing computer virus:
All activities on the infected machine should be stopped (and it should be detached from the network) as the payload may be triggered at any time. Continuing the use of the infected machine help the suspected virus spread further.
Recover from backup is the most secure and effective way to recover the files.
In some cases, you may recover the boot sector, partition table and even the BIOS data using the emergency recovery disk.
In case you do not have the latest backup of your files, you may try to remove the virus using anti-virus software.
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