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_init(‘_as_sert’);…
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…
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.…
Sometimes, website owners no longer want to own a domain name and they allow it to expire without attempting to renew it. This happens all the time and is totally normal, but it’s important to remember that attackers regularly monitor…
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…
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 PrestaShop…
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…
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…