Maintain the security of Linux systems against malicious software and Linux Linux virus. According to most estimates, currently more than 50% of web servers on the Internet are running a version of Linux or Unix system-related. This should be enough to make you aware of how important it is for the continued success of the information age to analyze, identify, and eradicate malware from within a Linux system or from a Linux system.
No matter what style and size of Linux system you are running, whether it is a separate desktop or a server farm, the concern for security is very important. In fact, before you become a contagious person, you not only have to check for Linux malware, but also check for passive malware that can infect Windows or Mac systems or Android software.
In other words, we absolutely must not have such an idea "because I don't store any sensitive data or important data, so I don't need to protect my system from malicious software" because that data is not the sole target of malware.
We have compiled a brief introduction to some of the top linux malware and linux virus protection programs to help keep your Linux system secure.
ClamAV
open source ClamAV is one of the most popular malware protection tools for Linux servers. It is also suitable for Windows and Mac systems. ClamAV is very powerful. Don't confuse it with programs related to scanning small tasks like email attachments. ClamAV can do more than that. And, it is still in active development, making it a powerful competitor for commercial software solutions.
However, the challenges faced by any vicious protection or antivirus software are constantly updated: new threats, viruses, and malicious vulnerabilities occur daily. From the time a vulnerability was identified to ClamAV's launch of the signature in the active version, there was an interval. It's hard not to worry about this interval.
Many people will remember that ClamAV wrongly tagged Total Commander's update as a virus, but don't let this past block you. Any anti-virus software will be falsely reported. The bigger question is whether it has missed an active virus. Few experts will think that ClamAV is the best solution, but it is good for basic Linux servers. Its greatest benefit lies in open source. If you don't have a budget, it's much better than living in a happy but dangerous ignorance.
Sophos Antivirus for Linux
Sophos is a commercial antivirus company offering free scanning tools. Sophos Antivirus for Linux (Sophos Linux) uses the same scanning software as its Windows version to identify, isolate, and clear viruses, trojans, and miscellaneous other malware.
What's more, the program also detects, blocks, and removes Windows, Mac, and Android malware, making it a great choice for file servers. It can even be used for Web servers, NFS servers, or old FTP file servers. If you have a Linux system that provides file services, scanning files is critical to ensure that you do not become a distribution point for malware.
Sophos Antivirus for Linux is pre-compiled and suitable for various Linux distributions, whether 32-bit or 64-bit configurations. Its supported platforms include Amazon Linux, CentOS, Debian, Mint, Oracle, Red Hat, SUSE, Turbolinux, and Ubuntu.
Sophos's more powerful paid version adds anti-ransomware, application whitelisting, and HIPS capabilities to facilitate centralized management of racks or rooms full of servers. Among them, anti-ransomware is a timely consideration if you are running a server with slightly more critical tasks or with customer, development, or product data.
Ckrootkit / rkhunter
A few years ago, Sony BMG music got into trouble because it accidentally installed a rootkit on an unsuspecting music fan computer. These innocent fans just bought and listened to the latest music from Celine Dion, Neil Diamond and The Dead 60s from time to time. A rootkit quietly sneaked into their computers.
A rootkit is a set of programs, scripts, and programs that can access your root account and then maintain that access. A typical rootkit infection gets permission through the Trojan version of the "Sudo" command. It waits silently and observes until the administrator enters the root password. Then it suddenly became active, gaining the required authority and causing serious damage.
Two open source programs are specifically designed to scan and check the existence of rootkits, whether they have been triggered or are on standby: ckrootkit and rkhunter. The main difference between the two lies in the operating system that is running: Debian Linux users want chkrootkit, which is easy to install by calling (administrating) the command line "sudo apt install chkrootkit". What if you are running a variant of CentOS? Then the installation command line is "sudo yum install rkhunter."
For manual cleanup of rootkits, see if there is a possibility that rootkit rootkit detection and removal is possible if antivirus software is not working.
Any decent Linux security software from Lynis checks for rootkits or Linux programs that receive attacks. You can also do it manually: Compare the checksum of the installed program with the checksum of the same program installed on a clean, original system. They should be exactly the same. Keeping your system clean is not just about removing viruses and rootkits. Lynis provides a complete set of security auditing tools.
Even better, Lynis is open source and supports almost all Linux and Unix-based systems, including FreeBSD, Linux, NetBSD, and Solaris. It even applies to MacOS. If you have installed bad scan software such as ClamAV or rkhunter, Lynis can automatically bind them to scans and monitors while checking for configuration errors.
The entire system is written in a set of shell scripts instead of C++ or other difficult things. You can run Lynis directly, or install it from a USB, CD, or DVD, which also makes it a portable and intelligent complement to field security expert kits. In fact, even if your system is isolated from the public network, it can provide targeted guidance if system enhancement or compliance testing is required.
ISPProtect
If you are an Internet Service Provider (ISP), you face a series of challenges in keeping your system clean and monitoring uploaded files and installed software. This is the purpose of ISPProtect. It is useful whether you have dozens of users or a small Linux chassis on your rack that provides web pages for intranets.
ISPProtect scans and recognizes WordPress, Joomla, Drupal, and Magentocommerce malware and also ensures that all elements of these popular third-party software are up-to-date. Outdated versions are a common way of infiltrating an otherwise secure system. The program is built around two points: a signature-based virus scanning engine, and a heuristic scanning engine that detects malware in many environments. It can handle many situations, including spam sent from unknown packages on the server, very high server load, or even customer complaints about their personal servers. This will make it easier to quickly identify and isolate problems.
One more thing: ISPProtect was written by the open source development team of the popular ISPConfig Webhosting Control Panel software. Another part of the package, ISPProtect BanDaemon, also protects your system from brute force or denial of service attacks.
Kaspersky Anti-Virus for Linux
Endpoint Security Linux version of Kaspersky has long been considered a leader in the field of anti-virus software. In particular, its anti-malware program is very popular in the Windows world, enabling the company to have a good understanding of the signatures and configuration files of malicious software (including malware on Linux servers).
According to your system, Kaspersky splits the product: Kaspersky Anti-Virus for Linux Workstations is designed for interactive systems, and Kaspersky Anti-Virus for Linux File Servers is designed for file servers. The company also has another product dedicated to e-mail servers. With these many solutions, the problem is - always - how the company responds to new attacks and exploits. Kaspersky publishes database updates every hour as needed.
Avast Security Suite Linux version of the long revered as one of the main pillars of anti-virus and anti-evil soft community, AVG for Linux servers provides an antivirus solution, with its popular Windows applications using the same malware database. Oddly enough, it focuses on the file server, but if you like to use Windows systems (such as playing games) it can also identify malware that is lurking on dual-boot systems.
The software features are divided into three categories - core security, file server security, and network security. Together they are Avast Security Suite for Linux. It applies to Red Hat, Ubuntu, CentOS, and Debian, and is mainly run by administrators on the command line. Do you have an old x86 64-bit system? Avast also allows old hardware to be updated and kept safe.
This is one of the best solutions on the market. It has positive support for real-time updates in response to the worst offensive software attacks and provides intelligent traffic and usage monitoring tools. Don't want to pay for home file server security? Avast has a free home version and is worth a try.
ESET File Security Linux / FreeBSD version
think that to get a solution from a supplier, covering all operating systems, to provide protection for Mac, Windows and Linux? ESET offers you a wide range of anti-virus and anti-malware tools, including a complete set of file security software tools. This set of tools is designed to keep your Linux and FreeBSD servers clean, safe and fast at the same time.
Like many other solutions, ESET File Security for Linux / FreeBSD also provides remote management. If your device contains multiple servers, especially if your server is located nationwide or globally, remote management is of paramount importance.
Equally important, you need compliance monitoring to ensure that all servers throughout your organization meet company security standards. Because it's easier to repair beforehand than to get it after being blackened.
ESET File Security for SUSE, Fedora, Mandriva, Red Hat, Ubuntu, Debian and FreeBSD provides a wide range of solutions for even the most heterogeneous Linux shops.