Our team recently found a malicious JavaScript injection within the WordPress index.php theme file on a compromised WordPress website which ultimately redirects site visitors to a survey-for-gifts scam website. At this time of writing, we have seen over two thousand new infected sites since we started tracking this infection. The injection seen below is used […]
Tag Archives: WordPress Security
Authentication Bypass Vulnerability in InfiniteWP Client
An authentication bypass vulnerability affecting more than 300,000 InfiniteWP Client plugin users has recently been disclosed to the public. This plugin allows site owners to manage multiple websites from one central server using the InfiniteWP Server. Due to the nature of this plugin, this is a serious vulnerability that should be patched as soon as […]
Top 10 Sucuri Research Articles in 2019
As we settle into 2020, it’s a good time to look back at what was learned in the previous year. After all, the past provides valuable lessons for the future. With that thought in mind, we asked our researchers to choose their favorite blog posts from 2019. If your New Year’s resolution for 2020 is […]
Unmasking Black Hat SEO for Dating Scams
Malware obfuscation comes in all shapes and sizes — and it’s sometimes hard to recognize the difference between malicious and legitimate code when you see it. Recently, we came across an interesting case where attackers went a few extra miles to make it more difficult to notice the site infection. Mysterious wp-config.php Inclusion During the […]
Another Fake Google Domain: fonts.googlesapi.com
Our Remediation team lead Ben Martin recently found a fake Google domain that is pretty convincing to the naked eye. The malicious domain was abusing the URL shortener service is.gd: shortened URLs were being injected into the posts table of the client’s WordPress database. Whenever the infected WordPress page loads, the actual content is obscured […]
Vulnerable Versions of Adminer as a Universal Infection Vector
This past week, we’ve been monitoring a new wave of website infections mostly impacting WordPress and Magento websites. We found that hackers have been injecting scripts from scripts.trasnaltemyrecords[.]com into multiple files and database tables. This is still the same ongoing campaign that we’ve been following for the past few years, where site visitors are redirected […]
Skimmers for Both Magento and WordPress
We often write about malware that steal payment information from sites built with Magento and other types of e-commerce CMS. When discussing credit card skimmers like Magecart, it’s sometimes overlooked that WordPress also has a decent share in the ecommerce segment. There are numerous popular plugins that can easily turn a WordPress site into a […]
Pharma Spam Redirects to .su & .eu Sites
We regularly clean all sorts of black hat SEO infections. During these infection cleanups, we often find compromised websites redirecting visitors to fake “Canadian Pharmacy” landing pages selling counterfeit men’s health pills from various .su and .eu top level domains. Spammy Redirect File Names & Contents These SEO infections usually come in the form of […]
Data URLs and HTML Entities in New WordPress Malware
Last week, an ongoing WordPress malware campaign started a new wave which included a variety of experimental injection types. Scripts as Data URLs The first type looks pretty similar to what we discussed in our recent post. However, instead of placing the code between the … tags, these injections have begun to embed them inline […]
Fake UpdraftPlus Plugins
We often find various fake WordPress plugins installed by hackers during website cleanups. Recently, we’ve noticed a new wave of infections that install fake plugins with backdoor functionality. Malicious Plugins Sourced from UpdraftPlus Attackers have been using different names for these fake plugins, including initiatorseo or updrat123—but any title can be used. While their code […]
