Are you worried that your Linux computer may be infected with malware? Have you ever checked? While Linux systems tend to be less susceptible to malware than Windows, they can still be infected. Many times they’re less obviously compromised, too.
There are a handful of excellent open-source tools to help you check if your Linux system has been the victim of malware. While no software is perfect, these three have a solid reputation and can be trusted to find most known threats.
This week, in our Linux Page (in Spanish) we have posted a quick guide to rapidly install ClamAV: one of my favourite and open source antivirus for Linux. We have already written some notes in our previous post “Security package (Rev. 1.2) for Ubuntu: antivirus, firewall and P2P stealth” and in that occasion we decide to suggest an external link. This time we reinstalled a fresh new Ubuntu 8.10 and decided to directly add ClamAV. First of all, it is necessary to run Synaptic Package Manager (in System – Administration) and to search Clam and select clamav and all the extra packages you prefer to install. Read very carefully the description that is visualized each time you click on one of them and select the extra feature you need. Then, with the right button of the mouse, select “mark for installation” and click on Apply in the upper menu bar. After few seconds ClamAV will be correctly installed. Now, if you check on Applications – System Tool you will find a new ClamAV icon whose name is Virus Scanner. Now, if you launch ClamAV you will discover that, unfortunately, it is not possible to upgrade the program without administrative privileges. I solved this “problem” dragging and dropping the ClamAV icon to the upper panel. Then I clicked on the icon using the right button of the mouse and selected the Properties panel. Then, in the “command” space I added sudo before the text clamtk %F that I found already written there (sudo clamtk %F). Now, when you click on the upper panel ClamAV icon, you are able to upgrade your new antivirus in a breeze. Recommended!
There are almost two different good reasons to install a sandbox on you Windows OS: email/internet security and the possibility of trying new software without risking to damage your OS configuration. About the first point we can say that it is useful to read the attachments of your emails or freely browsing the web without risking to infect the PC. I know, we all do not usually open attachments from unknown email senders but at least, once a month (for example when we are under pressure at work) it happens and then we have to scan the PC with antiviruses and antispywares to check if we have involuntary open one or more backdoors. Moreover, when we decide to test a new software we could prefer not to take unnecessary risks running them. This week, in our Freeware Page, we have tested Sandboxie, a freeware which allows you to use one or all the programs installed on your computer with no risks. In fact all the data are stored in a temporary area (sandbox) and not written on the hard disk of your PC and they are deleted as soon as you decide to quit them. You can legally use Sandboxie free of charge for any length of time that you desire but, after 30 days, the software will occasionally remind you to consider paying the 30 USD registration fee. Last but not least, Sandboxie is simple to install and after not more than one hour you will be able to use it in a complete way. Very useful!