Linux powers 75% of the internet, and it’s installed on 6.64 million web servers. Although Linux is inherently secure, several configurations and strategies help harden its defenses and reduce the risk of a compromise. What are steps to secure a Linux server? How to secure Linux servers? This post covers these questions and many more.
Updates in Active Response x PAM protection
We are happy to announce that we made some significant protection improvements for the cases when different protection modules work in cooperative mode.
Updates in Active Response x PAM protection
We are happy to announce that we made some significant protection improvements for the cases when different protection modules work in cooperative mode.
Release Notes: Imunify360 v.6.7
We’re pleased to announce a new version of Imunify360. Version 6.7 is now available. The following features are new in the v6.7 release:
Release Notes: Imunify360 v.6.7
We’re pleased to announce a new version of Imunify360. Version 6.7 is now available. The following features are new in the v6.7 release:
The deceptive Cloudflare block page that signals WordPress infection

Infection description
On Sep 15, we detected a malicious campaign. It was evident that the attackers we discovered were using phishing techniques to trick users into downloading a malicious binary file. They used a fake message on websites stating that a user has been blocked by Cloudflare. Meanwhile, infected websites getting the message would not necessarily even use Cloudflare services.
The deceptive Cloudflare block page that signals WordPress infection

Infection description
On Sep 15, we detected a malicious campaign. It was evident that the attackers we discovered were using phishing techniques to trick users into downloading a malicious binary file. They used a fake message on websites stating that a user has been blocked by Cloudflare. Meanwhile, infected websites getting the message would not necessarily even use Cloudflare services.
Release Notes: Imunify360 v.6.6
We’re pleased to announce a new version of Imunify360. Version 6.6 is now available. The following features are new in the v6.6 release:
Release Notes: Imunify360 v.6.6
We’re pleased to announce a new version of Imunify360. Version 6.6 is now available. The following features are new in the v6.6 release:
From massive infection to zero impact
Infection description
Starting on Jun 29, we detected a malicious campaign that uses Crontab in a chained infection flow. A closer look reveals a common pattern attackers use in order to inject a backdoor to a vulnerable host.
It starts from logging in with previously stolen credentials to the cPanel service. After that, the attacker makes an attempt to upload a backdoor directly to the public directory. And the final step is to set up a CronJob task, containing obfuscated malware, scheduled to trigger every at regular intervals.
From massive infection to zero impact
Infection description
Starting on Jun 29, we detected a malicious campaign that uses Crontab in a chained infection flow. A closer look reveals a common pattern attackers use in order to inject a backdoor to a vulnerable host.
It starts from logging in with previously stolen credentials to the cPanel service. After that, the attacker makes an attempt to upload a backdoor directly to the public directory. And the final step is to set up a CronJob task, containing obfuscated malware, scheduled to trigger every at regular intervals.
Imunify360 Live Webinar, Friday 1 pm EST: Bulletproof your server security with Imunify360
Is your server security bullet proof? Could you benefit from a fully automated system that prevents malware and mitigates cyber attacks?
Join hosting security guru Eric Ellis this Friday at 1 pm EST to hear how others are using Imunify360 to secure their servers so they can focus on scaling their business.
Imunify360 Live Webinar, Friday 1 pm EST: Bulletproof your server security with Imunify360
Is your server security bullet proof? Could you benefit from a fully automated system that prevents malware and mitigates cyber attacks?
Join hosting security guru Eric Ellis this Friday at 1 pm EST to hear how others are using Imunify360 to secure their servers so they can focus on scaling their business.
How to Manage Imunify Security Notifications
We designed a set of messages to report information about security threats that are dangerous for the server. Imunify uses cPanel contact manager to send notifications about those threats. We hope you will find them helpful. This feature can be managed through CLI.
How to Manage Imunify Security Notifications
We designed a set of messages to report information about security threats that are dangerous for the server. Imunify uses cPanel contact manager to send notifications about those threats. We hope you will find them helpful. This feature can be managed through CLI.
Imunify Security - Monthly Digest for July 2022
To speed up and improve your experience on your favorite Linux server security suite, the Imunify360 team focused on performance improvements and optimizations in July. Also you’ll see new feature releases starting from the first week of August. Stay tuned on the Changelog page for chronological updates.
But wait… There’s more…
Imunify Security - Monthly Digest for July 2022
To speed up and improve your experience on your favorite Linux server security suite, the Imunify360 team focused on performance improvements and optimizations in July. Also you’ll see new feature releases starting from the first week of August. Stay tuned on the Changelog page for chronological updates.
But wait… There’s more…
Release Notes: Imunify360 v.6.5
We’re pleased to announce a new version of Imunify360. Version 6.5 is now available. The following features are new in the v6.5 release:
- WebShield improvement
In this release, we present a new and improved WebShield. Starting from version 6.5, WebShield will work faster and consume even fewer resources. We improve performance by running WebShield as a pure Nginx module.
- Language support for SplashScreen
Version 6.5 broadens the set of languages supported by our SplashScreen.
Release Notes: Imunify360 v.6.5
We’re pleased to announce a new version of Imunify360. Version 6.5 is now available. The following features are new in the v6.5 release:
- WebShield improvement
In this release, we present a new and improved WebShield. Starting from version 6.5, WebShield will work faster and consume even fewer resources. We improve performance by running WebShield as a pure Nginx module.
- Language support for SplashScreen
Version 6.5 broadens the set of languages supported by our SplashScreen.
Imunify Security - Monthly Digest for June 2022
June 2022 was a busy month for the Imunify360 team. The new version of Imunify360, v.6.5 was released to beta while v.6.4 is now stable. The Imunify360 team is also excited to announce the Early Access program for SecureSite, a non-profit program and Imunify360 demo environment.
Keep on reading to learn more.
Imunify Security - Monthly Digest for June 2022
June 2022 was a busy month for the Imunify360 team. The new version of Imunify360, v.6.5 was released to beta while v.6.4 is now stable. The Imunify360 team is also excited to announce the Early Access program for SecureSite, a non-profit program and Imunify360 demo environment.
Keep on reading to learn more.