There are some of the software's are available which can protect your computer from the viruses. There are some people who do cryptocurrency trading from the home and it provides the options easily to make the profit through the bitcoin currency.

I need to learn more about linux...wast much time with windows;

Yeah, me to...  

ClamAV is an open source (GPL) antivirus engine designed for detecting Trojans, viruses, malware and other malicious threats.

It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and advanced tool for automatic database updates. The core of the package is an anti-virus engine available in a form of shared library.


Features:

    * command-line scanner
    * fast, multi-threaded daemon with support for on-access scanning
    * milter interface for sendmail
    * advanced database updater with support for scripted updates and digital signatures
    * virus scanner C library
    * on-access scanning (Linux® and FreeBSD®)
    * virus database updated multiple times per day (see home page for total number of signatures)
    * built-in support for various archive formats, including Zip, RAR, Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS and others
    * built-in support for almost all mail file formats
    * built-in support for ELF executables and Portable Executable files compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack and obfuscated with SUE, Y0da Cryptor and others


Download: http://www.clamav.net/lang/en/download/packages/packages-linux/