What is anti-malware, and which one should you choose to protect you from malicious software?
The cybersecurity company Kaspersky detected an average of 467,000 malicious files per day in 2024 (source: cyber-securite.fr). At the same time, the ANSSI (Agence nationale de la sécurité des systèmes d'information) reported a 15% increase in malware attacks. These figures show just how important it is for businesses to protect themselves against these threats in the virtual world.
In this article, we present the best anti-malware solutions, as well as the criteria for choosing your own software. Security is yours!
What is anti-malware?
Anti-malware: definition
The term malware is a contraction of malicious software. It refers to an application whose purpose is to :
- corrupt a system
- steal data
- force access to a network,
- or spy on an activity.
This category includes viruses, ransomware, worms, Trojan horses, gootloaders, spyware, adware, etc.
🛡️ To counter this type of threat, cyber security experts have developed anti-malware technologies. Installed on computer workstations, their role is to detect, prevent and remove malicious software.
What is the difference between anti-virus and anti-malware software?
Antivirus software is a programme used to defend a device against a particular type of threat: viruses.
But with the development of cyberthreats, technologies have also evolved and now cover a wider range of defences.
That's why we now talk about anti-malware software.
How does anti-malware protect you in practical terms?
Detection and analysis
Antimalware detection is based on the signature of the malicious file. In concrete terms, the software looks for matches between the files analysed and the malware database at its disposal. This method has become inadequate, particularly in the fight against zero-day threats. Two other analysis methods enhance detection performance:
-
Heuristic analysis, i.e. analysis of a program's behaviour to detect suspicious activity.
-
Behavioural analysis: this involves proactive monitoring of all programs, with real-time intervention in the event of malicious action.
Blocking, quarantining and deleting threats
If malicious software is detected, anti-malware immediately blocks the action taken by the malware. The suspect file is then quarantined to prevent it spreading through your system.
👉 During this isolation, the threat is assessed by the software. Depending on the level of danger, you will have 2 solutions:
- delete the infected file,
- or attempt disinfection.
Of course, you can also automate these processes depending on the threat.
Additional features: anti-phishing, ransomware and more
As threats become increasingly sophisticated, anti-malware software is also evolving with ever more features. At present, all anti-malware software includes, either natively or as an optional module or premium package :
- protection against phishing,
- and ransomware.
Some also have a VPN to secure browsing for the whole company, whether in the office or on the move.
Scheduled scanning to optimise performance
Anti-malware solutions not only offer real-time protection, but also programmable options: scan during periods of inactivity, quick scan or custom scan. Thanks to this planning, you can minimise the impact of the software on your system's performance. ✅
Integrated firewall
A firewall monitors traffic entering and leaving your computer network. Based on predefined security rules, the tool blocks or authorises traffic. An essential filtering element that represents the first barrier against attempts at intrusion by malicious software. ✋
What benefits can companies expect from antimalware?
1) Improved IT security
Anti-malware software considerably increases the security of your IT system. No matter how dangerous the threats, it enables you to provide an appropriate response to limit the risks. Your network is protected at every level, from individual workstations to central servers.
2) Protection for your sensitive data
In today's digital ecosystem, data protection is a major issue. By using high-performance anti-malware, you reduce the risk of theft or corruption of your sensitive data.
3) Better system performance
People tend to think that anti-malware software slows down IS. In fact, the opposite is true! It helps optimise your performance. By ridding you of malware or unwanted programmes, they allow your devices to run more smoothly and efficiently.
Modern anti-malware solutions adapt their level of action to your use. So you can maintain a perfect balance between security and performance.
4) Peace of mind for employees
Installing a reliable, high-performance anti-malware solution brings real peace of mind to your teams. This is essential if they are to perform effectively in a digital working environment where browsing, downloading and file sharing take place on a daily basis.
The confidence provided by security software allows your staff to focus on their tasks, rather than on potential cyber security issues. For best results, reinforce the IT security culture within your organisation with training and awareness-raising in cyber best practice.
Comparison of 7 antimalware programs
1 of 7
 Kaspersky Small office security. |  Avast Premium Business Security |  ESET Endpoint |  Malwarebytes |  Protect by Mailinblack |  Microsoft Defender for Endpoint |  Stormshield Endpoint security |
|---|---|---|---|---|---|---|
| For all companies | For all companies | For all companies | For all companies | For all companies | For all companies | For all companies |
| See software | See software | See software | See software | See software | See software | See software |
| Learn more about Kaspersky Small office security. | Learn more about Avast Premium Business Security | Learn more about ESET Endpoint | Learn more about Malwarebytes | Learn more about Protect by Mailinblack | Learn more about Microsoft Defender for Endpoint | Learn more about Stormshield Endpoint security |
Avast Essential Business Security
Avast Essential Business Security is Avast's IT security solution specially designed for small and medium-sized businesses. Install the antivirus on all your workstations to be protected against the main threats
With firewall protection against encryption and data leakage, online confidentiality and detection of phishing attacks, Avast is on all fronts. The software is particularly effective against malware. The "File Agent", "Email Agent", "Web Agent" and "Real Site" features provide your Windows and Mac PCs with permanent protection against viruses, spyware and other malware.
Boosted by AI technology, they detect infected files and zero-day threats. Avast also offers a remote management platform so you can control your online security from anywhere.
Price: from €28.26 per device per year.
Free offer: 30-day trial.
Avast Premium Business Security
ESET Protect Entry
ESET Protect Entry protects your server and endpoints from network attacks, phishing and malware. The multi-layered protection offered is high-performance and easy to manage.
It deploys in 1 click from the cloud console and offers you 170 integrated reports and customisation options based on 1,000 data points. This next-generation anti-malware solution is aimed at businesses of all sizes, and has already been adopted by Mitsubishi, Canon and Allianz.
The company offers other levels of protection with even more comprehensive solutions such as ESET Protect Advanced, which includes anti-ransomware protection, ESET Protect Complete (multi-vector protection) and ESET Protect MDR (all-in-one protection with 24/7 MDR service).
Price: from €182.50 per year for 5 devices (minimum required).
Free offer: 30-day free trial and demo trial available.
ESET Endpoint
Kaspersky Small Office Security
Kaspersky Small Office Security is a cybersecurity solution designed specifically for small businesses, VSEs and entrepreneurs. It offers comprehensive protection against computer threats such as viruses, malware, ransomware and phishing, without requiring any special IT skills to install and manage.
The suite includes advanced features such as
- file encryption
- secure backup
- and password management,
ensuring the security of sensitive corporate information.
With an intuitive interface and minimal impact on system performance, Kaspersky Small Office Security offers reliable and effective protection for your business operations.
Price: from €85.50 per year for 3 devices (minimum required). Free trial.
Kaspersky Small office security.
Malwarebytes
Malwarebytes ThreatDown is a cybersecurity solution designed specifically for entrepreneurs, SMEs and VSEs. It requires no special IT skills to be installed and managed in-house. Voted Product of the Year 2025 by AV Lab, Malwarebytes Teams offers robust protection for all your business devices.
Its multi-layered, AI-powered technology ensures continuous defence against today's cyber threats. In terms of anti-malware features, Malwarebytes Teams offers proactive protection against malware, viruses, spyware and brute force attacks.
The software is particularly effective at countering ransomware attacks. Another significant advantage is that Malwarebytes makes browsing online 4 times faster. A solution that gives you protection and performance at the same time.
Price: from €110.99 per year for 3 devices.
Malwarebytes
Mailinblack Protect
Mailinblack Protect, as its name suggests, offers advanced protection for your mailboxes. The tool is aimed at VSEs to large ETIs, as well as healthcare establishments and public administrations. Its ease of integration makes it a multi-sector solution that has already been adopted by more than 22,000 organisations, including the Martinique University Hospital, the Gard Departmental Council and the Grand Port Maritime de Marseille.
Mailinblack Protect is based on Deep Learning technology trained on 6 billion emails a year. Its main features are
- in-depth analysis of attachments
- URL rewriting to prevent access to fraudulent sites,
- and real-time threat blocking.
Mailinblack Protect protects you from all forms of malware (ransomware, spyware, adware, viruses, Trojans) before they damage your computer systems. The Advanced version even includes dual anti-virus for extra protection.
Price: Prices on request, with two levels of packages available: Essential (standard protection) and Advanced (enhanced protection with advanced AI).
Protect by Mailinblack
Microsoft Defender for Business
Microsoft Defender for Business is a cybersecurity solution for businesses with up to 300 endpoints. Its great strength is, of course, its integration with the Microsoft ecosystem. In fact, it is included with Microsoft 365 Business Premium.
However, the software remains flexible, with optimum compatibility with Mac, iOS and Android. In terms of anti-malware protection, Microsoft Defender offers a full range of features to protect against all sophisticated cyber threats (ransomware, malware, phishing). The solution also includes a management module for identifying potential vulnerabilities.
Price: Available as a standalone subscription (from €2.80/user/month) or included in Microsoft 365 Business Premium.
Free offer: 30-day trial
Microsoft Defender for Endpoint
Stormshield
Stormshield is a French publisher of cybersecurity solutions. It is present in over 40 countries through its network of certified reseller partners. Stormshield is particularly well suited to large groups (public organisations, industry, etc.).
Stormshield's strength lies in the quality of its products and its comprehensive support, which includes maintenance, technical support and training.
Here are the main features of the Stormshield ecosystem:
-
Stormshield Endpoint Security (SES) provides robust protection for desktops and servers against even the most sophisticated malware.
-
Stormshield Data Security (SDS) ensures the confidentiality of sensitive data using advanced encryption technologies.
-
Stormshield Network Security (SNS) offers a range of next-generation firewalls against intrusions.
Price: Pricing on request.
Stormshield Endpoint security
How do I choose antimalware? Selection criteria and guide
The software's detection efficiency
The number 1 priority when selecting an anti-malware product is its detection rate. Take an interest in the results of independent tests (AV-Test or AV-Comparatives) of the software you are interested in. The product of your choice should score close to 100%.
Performance, compatibility and lightness
Always check the technical specifications required to run an anti-malware product on your computer. Some suites are too heavy and risk slowing down your online activity. To avoid this inconvenience, opt for lightweight, discreet software that is compatible with your computer system.
Ease of use and ergonomics
If your company does not have a full IT department, opt for an anti-malware solution that is easy to use. An ergonomic tool will require less resources and investment in training to be adopted by your teams.
Budget and value for money
Good anti-malware software is also a product that fits your budget. Quality protection is essential, but not at any price. Compare the different products on the market and go for the best value for money solutions rather than the cheapest options. If you have a lot of workstations to protect, opt for discounted packages.
Comparison table of the 7 anti-malware software products you need to know about in 2025
| Software | Software detection efficiency | Performance, compatibility and lightness | Ease of use and ergonomics | Budget and value for money |
|---|---|---|---|---|
| Avast Essential Business Security | ⭐⭐⭐⭐☆ Reliable detection, good protection against ransomware | ⭐⭐⭐⭐☆ Lightweight, multi-OS compatible, moderate impact | ⭐⭐⭐⭐☆ Modern, accessible interface | ⭐⭐⭐⭐☆ Good balance between features and price |
| ESET Protect Entry | ⭐⭐⭐⭐⭐ Excellent reputation, very good AV-TEST score | ⭐⭐⭐⭐⭐ Ultra-light, very non-intrusive, multi-platform support | ⭐⭐⭐⭐☆ Console a little technical at first | ⭐⭐⭐⭐☆ Affordable with advanced options included |
| Kaspersky Small Office Security | ⭐⭐⭐⭐☆ Good real-time protection, effective anti-ransomware | ⭐⭐⭐⭐☆ Lightweight, compatible with Windows/macOS/Android/iOS | ⭐⭐⭐⭐☆ Intuitive interface, designed for non-specialists | ⭐⭐⭐⭐☆ Very good value for money for very small businesses |
| Mailinblack Protect | ⭐⭐⭐⭐☆ Highly effective against email malware | ⭐⭐⭐⭐☆ Email specialist, not intrusive | ⭐⭐⭐⭐☆ Simple installation, few settings | ⭐⭐⭐⭐☆ Very good customer feedback, suitable for French SMEs |
| Malwarebytes for Teams | ⭐⭐⭐⭐☆ Good against ransomware and spyware | ⭐⭐⭐⭐☆ Lightweight, cross-platform, no slowdowns | ⭐⭐⭐⭐☆ Ultra simple to deploy, few complex options | ⭐⭐⭐⭐☆ Fair price, solid protection with no extras |
| Microsoft Defender for Business | ⭐⭐⭐⭐☆ Good basis with Windows, decent performance | ⭐⭐⭐☆☆ Heavy on some older configurations | ⭐⭐⭐⭐☆ Native interface, well integrated with Microsoft 365 | ⭐⭐⭐⭐⭐ Included free or at low cost with M365 |
| Stormshield Endpoint Security | ⭐⭐⭐⭐⭐ Very high level, ANSSI certified | ⭐⭐⭐☆☆ Heavier, sensitive infrastructure oriented | ⭐⭐⭐☆☆ Technical interface, aimed more at IT pros | ⭐⭐⭐☆☆ High-end, justified investment for sensitive sectors |
What you need to know about anti-malware software
In the (almost) all-digital age, businesses can no longer afford to ignore cybersecurity. To build your digital fortress, you need solid foundations. Anti-malware is the essential foundation of any successful cyber security strategy. A tool capable of guaranteeing the security of your systems against all threats.
Combined with a strict policy (training, back-ups, redundancy, etc.), it will enable your business to develop serenely in today's digital environment.
Article translated from French
Maëlys De Santis, Growth Managing Editor, started at Appvizer in 2017 as Copywriter & Content Manager. Her career at Appvizer is distinguished by her in-depth expertise in content strategy and marketing, as well as SEO optimization. With a Master's degree in Intercultural Communication and Translation from ISIT, Maëlys also studied languages and English at the University of Surrey. She has shared her expertise in publications such as Le Point and Digital CMO. She contributes to the organization of the global SaaS event, B2B Rocks, where she took part in the opening keynote in 2023 and 2024.
An anecdote about Maëlys? She has a (not so) secret passion for fancy socks, Christmas, baking and her cat Gary. 🐈⬛