Labs Note

Malware Dropper Takes Advantage of COVID-19 Pandemic

Malware Dropper Takes Advantage of COVID-19 Pandemic

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, Sucuri Labs, Website Malware Infections, Website Security
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 ...
Sucuri Blog

Fake WordPress Functions Conceal assert() Backdoor

| | Black Hat Tactics, Ecommerce Security, Hacked Websites, Labs Note, Malware, Sucuri Labs, Website Backdoor, Website Malware Infections, Website Security, wordpress security
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 ...
Sucuri Blog
Obfuscation Techniques in MARIJUANA Shell “Bypass”

Obfuscation Techniques in MARIJUANA Shell “Bypass”

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, Security Education, Sucuri Labs, Website Backdoor, Website Malware Infections, Website Security
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, ...
Sucuri Blog
Hackers Love Expired Domains

Hackers Love Expired Domains

| | Black Hat Tactics, Labs Note, Malware, Sucuri Labs, Website Security, WordPress Plugins and Themes, wordpress security
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 ...
Sucuri Blog
Hidden SEO Spam Link Injections on WordPress Sites

Hidden SEO Spam Link Injections on WordPress Sites

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, SEO spam, Sucuri Labs, Website Security, wordpress security
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 ...
Sucuri Blog
PrestaShop SuperAdmin Injector and Login Stealer

PrestaShop SuperAdmin Injector and Login Stealer

| | Black Hat Tactics, Ecommerce Security, Hacked Websites, Labs Note, Malware, Sucuri Labs, Website Malware Infections, Website Security
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 ...
Sucuri Blog

Evasive Maneuvers in Data Stealing Gateways

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, Redirects, Security Education, Sucuri Labs, Website Malware Infections, Website Security
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 ...
Sucuri Blog
Another Credit Card Stealer That Pretends to Be Sucuri

Another Credit Card Stealer That Pretends to Be Sucuri

| | Black Hat Tactics, Credit Card Stealers, Ecommerce Security, Hacked Websites, Labs Note, Magento Security, Malware, Sucuri Labs, Website Malware Infections, Website Security
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 ...
Sucuri Blog
Code Comments Reveal SCP-173 Malware

Code Comments Reveal SCP-173 Malware

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, Obfuscation, Sucuri Labs, Website Backdoor, Website Malware Infections, Website Security, wordpress security
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, a short description of a feature ...
Sucuri Blog

Legacy Mauthtoken Malware Continues to Redirect Mobile Users

| | Black Hat Tactics, Hacked Websites, Labs Note, Malware, Redirects, Security Education, Sucuri Labs, Website Malware Infections, Website Security
During malware analysis, we regularly find variations of this injected script on various compromised websites: . The variable “_0x446d” assigns hex encoded strings in different positions in the array. If we get ...
Sucuri Blog
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