Christmas is a wonderful time to spend with family and friends. A lot of kids look forward to opening their presents under the Christmas tree, but not all of them have a present to open. This is why our family started a charity project in 2007 called the Shoebox Project. A few years later, my […]
Tag Archives: Website Backdoor
Using Innocent Roles to Hide Admin Users
All across the internet, we find guides and tutorials on how to keep your WordPress site secure. Most of them approach the concept of user roles, but not many actually approach the capabilities of those roles. The way the capabilities are handled on WordPress makes it quite easy to change what each role is allowed […]
Multiple Ways to Inject the Same Tech Support Scam Malware
Last month, we shared information about yet another series of ongoing massive infections using multiple different vectors to inject malicious scripts into WordPress websites. Shortly after, the campaign changed the domain names used in its scripts. Now it mainly uses hotopponents[.]site and learningtoolkit[.]club. At the time of this writing, PublicWWW finds the most common patterns […]
Backdoor Uses Paste Site to Host Payload
Finding backdoors is one of the biggest challenges of a website security analyst, as backdoors are designed to be hidden in case the malware is found and removed. Website Backdoors A backdoor is a piece of malware that attackers leave behind to allow them access back into a website. Hackers like to inject code into different locations to […]
Outdated Duplicator Plugin RCE Abused
We’re seeing an increase in the number of cases where attackers are disabling WordPress sites by removing or rewriting its wp-config.php file. These cases are all linked to the same vulnerable software: WordPress Duplicator Plugin. Versions lower than 1.2.42 of Snap Creek Duplicator plugin are vulnerable to a Remote Code Execution attack, where the malicious visitor is […]
Massive WordPress Redirect Campaign Targets Vulnerable tagDiv Themes and Ultimate Member Plugins
This August, we’ve seen a new massive wave of WordPress infections that redirect visitors to unwanted sites. When redirected, users see annoying pages with random utroro[.]com addresses and fake reCAPTCHA images. The messages and content try to convince visitors to verify and subscribe to browser notifications without disclosing the purpose of this behavior. Alternative redirect […]
Ask Sucuri: How Do You Find Website Backdoors?
In a previous post, we have explained what website backdoors are and what they look like. Today, we want to focus on ways that we identify and remove backdoors to prevent reinfection. Techniques to Find Backdoors Finding a website backdoor is not an easy task because the main function of a backdoor is to keep […]
What are Website Backdoors?
When a site gets compromised, the attackers will often leave some piece of malware behind to allow them access back to the site. Hackers want to leave a door open to retain control of the website and to reinfect it continuously. This type of malware is called a backdoor. What Are Backdoors? Backdoors are types […]
Magento Credit Card Stealer Reinfector
In the past few months, we have frequently seen how attackers are infecting Magento installations to scrape confidential information such as credit cards, logins, and PayPal credentials. That is why we have reported on a credit card stealer reinfector of Magento websites in one of our recent Labs Notes. In this post, we describe one of […]
A Puzzling Backdoor Upload
After a successful compromise, backdoors are frequently left behind and function as a point of re-entry into the website environment. These malicious pieces of code are a valuable tool for attackers and allow them to bypass any existing access controls into the web server environment. To demonstrate just how common this malware is, in 2017 […]
