Archive by Author

Understanding FTP and SFTP: A Guide to Secure File Transfers

Updating your website means getting files to your server, but the process can feel like a chore when simply navigating in a conventional hosting panel. FTP and SFTP are essential tools for managing files on your server. Whether you’re uploading website content or downloading backups, these protocols offer a straightforward method to handle your site’s […]

Vulnerability & Patch Roundup — March 2025

Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this […]

Hidden Malware Strikes Again: Mu-Plugins Under Attack

At Sucuri, our security researchers continually monitor for new malware variants and infection techniques targeting WordPress websites. Recently, we’ve uncovered multiple cases where threat actors are leveraging the mu-plugins directory to hide malicious code. This approach represents a concerning trend, as the mu-plugins (Must-Use plugins) are not listed in the standard WordPress plugin interface, making […]

Quick Guide to Magento Security Patches

Magento remains a popular ecommerce platform in 2025 and its security patches play a vital role in addressing vulnerabilities that could otherwise be exploited by attackers. These patches help prevent issues like data breaches, website defacement, or unauthorized access, ensuring the safety of customer data and store operations. Given the platform’s widespread use, staying updated […]

Credit Card Skimmer and Backdoor on WordPress E-commerce Site

The battle against e-commerce malware continues to intensify, with attackers deploying increasingly sophisticated tactics. In a recent case at Sucuri, a customer reported suspicious files and unexpected behavior on their WordPress site. Upon deeper analysis, we discovered a complicated infection involving multiple components: a credit card skimmer, a hidden backdoor file manager, and a malicious […]

Cascading Redirects: Unmasking a Multi-Site JavaScript Malware Campaign

During a recent website security investigation, we uncovered a malicious JavaScript injection affecting a WordPress website. The infection was responsible for redirecting visitors to unwanted third-party domains, ultimately harming the site’s reputation and potentially exposing users to further malicious activity. What was discovered? A customer reached out to us, reporting that their website was unexpectedly […]

Vulnerability & Patch Roundup — February 2025

Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this […]

WordPress ClickFix Malware Causes Google Warnings and Infected Computers

Since December of last year there has been a new fake Google reCAPTCHA campaign making its way through the WordPress world. Very similar to malware which we wrote about last Summer, the website malware injection attempts to trick unsuspecting victims into executing malicious Powershell commands within Windows OS environments with the end goal of infecting […]