A virus is a self- replicating, malicious application that can easily penetrate an operating system with the sole purpose of spreading harmful programming codes.
It can utilize networks to forward copies of genuine codes in other computers and thus cause damage through the consumption of bandwidth, along with the deletion of files and sending data through e-mails.
It can also launch backdoor applications in the computer. Unlike other malicious applications, this self-replicating infection does not need the guidance of a cyber criminal. Basically this infection mainly spreads through activities like opening any file or program etc.
The virus mainly penetrates through file sharing links and networks of harmful websites, attachments, via FTP source and IRC message links. They can also utilize the errors in a network configuration as well as the loopholes of the security application and operating systems. Users must quickly understand the symptoms for its quick removal.
Some of these striking symptoms are mentioned below:
- Automatic running and opening of programs.
- Unusual behaviour of your computer.
- Warnings from your firewall.
- Errors in your operating system and the appearance of error messages.
- Appearance of unknown desktop icons and files.
- Modification or missing files.
- Slow performance of your computer.
- Forwarding of e-mails in unknown contacts without the knowledge of the users.
- Crashing or freezing of the network.
There are many precautionary measures that users can follow to prevent their computers from the attack of this kind of infection. Other important precautionary measures include:
- Backup your computer.
- Avoid opening unrecognised and unexpected e-mails, because viruses and worms mainly spread through them.
- Users must refrain from clicking unknown links and opening attachments from unauthorized sources.
- Users must regularly update their software and operating system with security releases issued by the vendor.
- Users must regularly run anti-virus software applications to protect from such virus attacks.
In case a user’s computer is already infected with a worm or virus, the user must follow certain other steps mentioned below for complete removal of such threats from their computer:
- The cleanest option is to restore your computer via system restore or computer backup.
- Users should conduct a thorough check to see whether their anti-malware software is updated.
- Then they must run a full security scan of their computer.
- If the scan shows the presence of worms and other malware applications then users must ensure the infected files and folders are removed and clean the registry of the computer again with a registry cleaner.
- Users must always update the version of their operating system and security patches. By updating your system with the latest security patches, your system will be less vulnerable to attacks from malware and other malicious sources.
Windows 10 backup and restore – via System Restore
OS X backup and restore – via Time Machine