Trojan Spyware and BEC Attacks
Luke Leal When it comes to an organization’s security, business email compromise (BEC) attacks are a big problem. One primary reason impacts are so significant is that…
SQL Triggers in Website Backdoors
Over the past year, there’s been an increasing trend of WordPress malware using SQL triggers to hide malicious SQL queries within hacked databases. These queries…
UCEPROTECT Scam: When RBLs Go Bad
Marc Kranat What is a Realtime Blackhole List (RBL)? A Realtime Blackhole List (RBL) contains lists of email servers, domain names, and IP addresses that are associated…
Optimizing Performance and Behavior with WordPress and the Sucuri WAF
Aside from providing significant protection from a wide range of threats, the Sucuri WAF also acts as a CDN due to its caching capabilities and…
Whitespace Steganography Conceals Web Shell in PHP Malware
Denis Sinegubko Last November, we wrote about how attackers are using JavaScript injections to load malicious code from legitimate CSS files. At first glance, these injections didn’t…
Phishing & Malspam with Leaf PHPMailer
It’s common knowledge that attackers often use email as a delivery mechanism for their malicious activity — which can range from enticing victims to click…
Magento PHP Injection Loads JavaScript Skimmer
A Magento website owner was concerned about malware and reached out to our team for assistance. Upon investigation, we found the website contained a PHP…
Critical Vulnerabilities in 123contactform-for-wordpress WordPress Plugin
Rodrigo Escobar In mass infection scenarios, our Malware Research team often looks for attack vectors to find patterns and other similarities among compromised websites. The identification of…
Real-Time Phishing Kit Targets Brazilian Central Bank
We recently found an interesting phishing kit on a compromised website that has QR code capabilities, along with the ability to control the phishing page…
Obfuscation Techniques in Ransomweb “Ransomware”
As vital assets for many business operations, websites and their hosting servers are often the target of ransomware attacks — and if they get taken…
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…