The Dangers of Using Abandoned Plugins & Themes

It’s not very often that we see abandoned components being used on a website — but when we do, it’s most often because the website was exhibiting malware-like behavior and we were called to investigate and clean up the site.
Old and abandoned plugins … Continue reading The Dangers of Using Abandoned Plugins & Themes

Why You Should Monitor Your Website

In an effort to maintain unauthorized access or profit off a website’s environment long after an initial compromise, attackers commonly leverage a variety of different techniques and tactics.
These techniques range from adding backdoors, stealing sens… Continue reading Why You Should Monitor Your Website

Malware Dropper Takes Advantage of COVID-19 Pandemic

Since April, our team has been tracking the spread of a PHP malware dropper. It’s impacting unsuspecting victims who thought they were downloading a mapping software to monitor the spread of the COVID-19 pandemic.
While the attack is likely spread thr… Continue reading Malware Dropper Takes Advantage of COVID-19 Pandemic

Fake WordPress Functions Conceal assert() Backdoor

A few weeks ago, I was manually inspecting some files on a compromised website. While checking on a specific WooCommerce file, I noticed something interesting.
Among 246 other lines, this very specific part stood out to me:
$config = wp_dbase_config_i… Continue reading Fake WordPress Functions Conceal assert() Backdoor

Obfuscation Techniques in MARIJUANA Shell “Bypass”

Attackers are always trying to come up with new ways to evade detection from the wide range of security controls available for web applications. This also extends to malware like PHP shells, which are typically left on compromised websites as a backdo… Continue reading Obfuscation Techniques in MARIJUANA Shell “Bypass”

“Free” Symchanger Malware Tricks Users Into Installing Backdoor

In a previous post, I discussed how attackers can trick website owners into installing malware onto a website — granting the attacker the same unauthorized access as if they had exploited a vulnerability or compromised login details for the website.
B… Continue reading “Free” Symchanger Malware Tricks Users Into Installing Backdoor

Hidden SEO Spam Link Injections on WordPress Sites

Often when a website is injected with SEO spam, the owner is completely unaware of the issue until they begin to receive warnings from search engines or blacklists.
This is by design — attackers intentionally try to prevent detection by arranging inje… Continue reading Hidden SEO Spam Link Injections on WordPress Sites

PrestaShop SuperAdmin Injector and Login Stealer

According to W3Tech’s data, PrestaShop is among the most popular CMS choices for existing ecommerce websites, so it should come as no surprise that malware has been created to specifically target these environments.
We recently came across an infected… Continue reading PrestaShop SuperAdmin Injector and Login Stealer

Evasive Maneuvers in Data Stealing Gateways

We have already shared examples of many kinds of malware that rely on an external gateway to receive or return data, such as different malware payloads.
During a recent investigation, we came across this example of a PHP script that attackers use for … Continue reading Evasive Maneuvers in Data Stealing Gateways

Another Credit Card Stealer That Pretends to Be Sucuri

During a routine investigation, we found yet another web skimmer that pretends to be related to Sucuri.
One of our Remediation Analysts, Liam Smith, found the following code injected into the database of a Magento site.
The first 109 lines of the malw… Continue reading Another Credit Card Stealer That Pretends to Be Sucuri