WordPress Malware Disables Security Plugins to Avoid Detection
Luke Leal An alarm or monitoring system is a great tool that can be used to improve the security of a home or website, but what if…
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Website Security
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Reflected XSS in WordPress Plugin Admin Pages
Antony Garand The administrative dashboard in WordPress is a pretty safe place: Only elevated users can access it. Exploiting a plugin’s admin panel would serve very little…
Using assert() to Execute Malware in PHP 7 Environments
Krasimir Konov Initially released December 2015, PHP 7 introduced a multitude of performance and security improvements. Approximately 43.7% of websites across the web currently use PHP 7.x,…
Magento Multiversion (1.x/2.x) Backdoor
The Magento 1 EOL date has already passed, however it’s evident that a large number of websites will continue to use it for the foreseeable…
COVID-19 Chloroquine Pharmaspam
A recent SiteCheck scan of an organization’s website showed an interesting pharmacy spam injection targeting COVID-19-related pages of websites. The HTML that was flagged by…
CDN-Filestore Credit Card Stealer for Magento
During a website remediation, we recently discovered a new version of a Magento credit card stealer which sends all compromised data to the malicious domain…
Web Crawler & User Agent Blocking Techniques
This is a simple script that allows hackers to block specific crawlers based upon website requests from specific user-agents. This is useful when you don’t…
Smoker Backdoor: Evasion Techniques in Webshell Backdoors
“Smoker Backdoor” is a PHP webshell backdoor that uses hexadecimal and decimal obfuscation in conjunction with the PHP function goto to evade detection from malware…
How SSL Works with a Website Firewall
Art Martori It’s no secret that a secure sockets layer (SSL) encrypts data as it moves between a visitor’s browser and the site host. For many people,…
String Concatenation: Obfuscation Techniques
While string concatenation has many valuable applications in development — such as making code more efficient or functions more effective — it is also a…
PHP Binary Downloader
When possible, an attacker will want to avoid using specific functions in their PHP code that they know are more likely to be flagged by…