Obfuscation Techniques in Ransomweb “Ransomware”
Luke Leal As vital assets for many business operations, websites and their hosting servers are often the target of ransomware attacks — and if they get taken…
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Website Malware Infections
857 posts
Evaluating Cookies to Hide Backdoors
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…
Bogus CSS Injection Leads to Stolen Credit Card Details
Ben Martin A client recently reported their customers were receiving antivirus warnings when trying to access and purchase products from a Magento ecommerce website. This is almost…
SEO Spam Links in Nulled Plugins
Mohit Jawanjal It’s not unusual to see website owners running things on a budget. Choosing a safe and reliable hosting company, buying a nice domain name, boosting…
Malware Dropper Takes Advantage of COVID-19 Pandemic
Krasimir Konov 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…
Fake WordPress Functions Conceal assert() Backdoor
Douglas Santos 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.…
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…
“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…
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…
Evasive Maneuvers in Data Stealing Gateways
Cesar Anjos 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…
Another Credit Card Stealer That Pretends to Be Sucuri
Denis Sinegubko 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…