What is HTTP 504 Gateway Timeout & How to Fix It
Marc Kranat Website errors can be extremely frustrating, and one that often appears is the 504 Gateway Timeout error. This error occurs when an upstream server fails…
What is HTTP Error 502 Bad Gateway & How to Troubleshoot It
Website errors can be a real test of patience. One common culprit is the 502 bad gateway error. Known for its ubiquity across the web,…
What is HTTP Error 429: Too Many Requests
Rianna MacLeod Encountering the HTTP Error 429 can be frustrating for both website owners and users. Error 429 is an HTTP status code indicating that a user…
Mal.Metrica Redirects Users to Scam Sites
Ben Martin One of our analysts recently identified a new Mal.Metrica redirect scam on compromised websites, but one that requires a little bit of effort on the…
WordPress Vulnerability & Patch Roundup April 2024
Sucuri Malware Research Team 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…
What is a Zero-Day Vulnerability?
Gerson Ruiz Navigating the world of website security can feel like stepping into a minefield, especially when you have to navigate threats like zero-day vulnerabilities. Zero-days are…
What is Cookie Hijacking
Cesar Anjos Cookie hijacking involves unauthorized access to cookies, which are small pieces of data stored on your browser by websites you visit. Cookies often contain sensitive…
JavaScript Malware Switches to Server-Side Redirects & DNS TXT Records as TDS
Denis Sinegubko Last August we documented a malware campaign that was injecting malicious JavaScript code into compromised WordPress sites to redirect site visitors to VexTrio domains. The…
WordPress Maintenance: Tasks & Best Practices
If you’re managing a WordPress site, it’s crucial to ensure it runs smoothly and securely. Many site owners worry that WordPress maintenance is a complex…
Credit Card Skimmer Hidden in Fake Facebook Pixel Tracker
Matt Morrow In recent months, we have encountered a number of cases where attackers inject malware into website software that allows for custom or miscellaneous code —…
Web Shells: Types, Mitigation & Removal
Web shells are malicious scripts that give attackers persistent access to compromised web servers, enabling them to execute commands and control the server remotely. These…