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Blog Category: Website Security

website-security-blog-category

Learn about the latest website security news from our research and incident response teams. Find out about emerging website malware campaigns and the best steps to protect your site from hackers. To learn more check out the series of website security guides created by our team.

Trojan Spyware and BEC Attacks

March 3, 2021Luke Leal

Trojan Spyware and BEC Attacks

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 attacks often use a human victim to authorize a fraudulent transaction to bypass existing security controls that would normally be…

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Backdoor SQL Trigger

February 25, 2021Luke Leal

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 compromised databases. These queries inject an admin level user…

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February 12, 2021Marc Kranat

UCEPROTECT: When RBLs Go Bad

Realtime Blackhole Lists (RBLs) can be a great tool in your security arsenal. You may not know you’re using them, but all email providers and company email servers leverage these…

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CORS cross origin resource sharing

February 9, 2021Marc Kranat

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 regional PoPs — often performing…

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Backdoors in Malicious Plugins

February 2, 2021Denis Sinegubko

Whitespace Steganography Conceals Web Shell in PHP Malware

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 appear to contain anything except…

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Phishing Campaign

January 26, 2021Luke Leal

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 a phishing URL or download…

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Labs Note

January 21, 2021Luke Leal

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 injection in one of the…

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cPanel Password Reset Vulnerability

January 19, 2021Rodrigo Escobar

Critical Vulnerabilities in 123contactform-for-wordpress WordPress Plugin

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 these patterns allows us to…

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Phishing Campaign

January 14, 2021Luke Leal

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 in real time. What our…

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Troldesh Ransomware Dropper

January 12, 2021Luke Leal

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 offline, this can cause major…

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January 7, 2021Luke Leal

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 developed using a variety of…

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