Labs Note
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, ...
Hackers Love Expired Domains
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 ...
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 ...
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 ...
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 ...
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 ...
Code Comments Reveal SCP-173 Malware
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 ...
Legacy Mauthtoken Malware Continues to Redirect Mobile Users
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 ...
Redirects to YouTube Defacement Channel
During a recent investigation, we found an infected website was redirecting to YouTube after its main index.php file had been modified to include the following line of HTML: <meta http-equiv='refresh' content='2;url=https://youtu.be/fsqzjDAO2Ug'> This ...
GFX Xsender Hack Tool: A Spam Mailer
PHP hack tools are created and used by attackers to help automate frequent or tedious tasks. During a recent investigation, we came across a hack tool used to simplify the process of ...

