Kyle Knight
Sucuri Malware Research Team
Maninder Toor
Vulnerability & Patch Roundup — June 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…
Stealthy WordPress Malware Drops Windows Trojan via PHP Backdoor
Puja Srivastava Last month, we encountered a particularly interesting and complex malware case that stood out from the usual infections we see in compromised WordPress websites. At…
The Case of Hidden Spam Pages
Ben Martin Spammy posts and pages being placed on WordPress websites is one of the most common infections that we come across. The reason being is that…
Malicious WordPress Plugin Creates Hidden Admin User Backdoor
Matt Morrow I recently wrote about a case where a malicious plugin was used to steal admin credentials. Here we will examine yet another malicious plugin that…
Analysis of a Malicious WordPress Plugin: The Covert Redirector
A few weeks ago, we received a support request from a website owner who was experiencing unexpected redirects. Visitors landed on the website normally, but…
Understanding SSRF: Abusing Server Trust from the Inside Out
In our daily interactions online, trust is a fundamental currency. We trust servers to handle our data, process our requests, and reliably deliver content. But…
Fake WordPress Caching Plugin Used to Steal Admin Credentials
A common trend we see is that bad actors will upload malicious plugins to WordPress sites. These plugins serve a wide variety of functions from…
Vulnerability & Patch Roundup — May 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…
What Motivates Website Malware Attacks?
The depiction in the media of hackers tends to be that of balaclava-wearing villains who type furiously in a dark basement, motivated by nothing but…
Fake Java Update Popup Found in Malicious WordPress Plugin
We recently assisted a customer who reported a persistent and concerning “Java Update” pop-up appearing on their WordPress website. This type of deceptive notification is…
Fake Google Meet Page Tricks Users into Running PowerShell Malware
Last month, a customer reached out to us after noticing suspicious URLs on their WordPress site. Visitors reported being prompted to perform unusual actions. We…