During a recent investigation into a compromised Magento ecommerce environment, we discovered the presence of five different backdoors that would...
The official PHP git repository, http://git.php.net/, was compromised this Sunday, March 28. An attacker was able to modify the PHP source code twice and inject a...
Over the past year, there’s been an increasing trend of WordPress malware using SQL triggers to hide malicious SQL queries within compromised databases. These queries inject...
Last November, we wrote about how attackers are using JavaScript injections to load malicious code from legitimate CSS files. At first glance, these injections didn’t appear...
Identifying website backdoors is not always an easy task. Since a backdoors primary function is to conceal itself while providing unauthorized access, they are often developed...
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...
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...
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...
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...
We sometimes find malware code injections that contain strange code comments, which are normally used by programmers to annotate a section of code — for example,...
