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 a scanner. Some examples of suspicious functions commonly detected include system and file_put_contents. In this malware dropper file we recently found on a compromised website, the attacker chose to create […] more…
PHP Backdoor Obfuscated One Liner
In the past, I have explained how small one line PHP backdoors use obfuscation and strings of code in HTTP requests to pass attacker’s commands to backdoors. Today, I’ll highlight another similar injection example and describe some of the malicious behavior we’ve seen recently on compromised websites. Obfuscated PHP Backdoor Discovered by our Remediation team, […] more…
Sucuri Sit-Down Episode 3: Phishing Attacks with Luke Leal
Phishing attacks are one of the most popular methods for bad actors to gain access to a website environment. On this month’s podcast, analyst Luke Leal is with us to talk about these attacks. Topics covered include the motivation bad actors have for these attacks, who is a likely target, and preventative measures. Plus, host […] more…
Vulnerabilities Digest: July 2020
Relevant Plugins and Vulnerabilities: Plugin Vulnerability Patched Version Installs Asset CleanUp: Page Speed Authenticated XSS 1.4.6.7 80000 Quiz And Survey Master Authenticated Stored XSS 7.0.0 30000 Comments – wpDiscuz 7.0.0 – Arbitrary File Upload 7.0.5 70000 Real Estate 7 Reflected XSS 3.0.4 8000 CarePlus Reflected XSS — 5000 WooCommerce Subscriptions Unauthenticated Stored XSS 2.6.3 10000 […] more…
Vulnerabilities Digest: July 2020
Relevant Plugins and Vulnerabilities: Plugin Vulnerability Patched Version Installs Asset CleanUp: Page Speed Authenticated XSS 1.4.6.7 80000 Quiz And Survey Master Authenticated Stored XSS 7.0.0 30000 Comments – wpDiscuz 7.0.0 – Arbitrary File Upload 7.0.5 70000 Real Estate 7 Reflected XSS 3.0.4 8000 CarePlus Reflected XSS — 5000 WooCommerce Subscriptions Unauthenticated Stored XSS 2.6.3 10000 […] more…
SEO Hacktool: Sitemap Generator
An XML sitemap is an important part of a website’s SEO and exists to help search engine crawlers index new URLs on your website. For example, if a site has a large number of pages that were recently updated and the owner wants Google to index their latest content, they could utilize a sitemap.xml containing […] more…
SEO Hacktool: Sitemap Generator
An XML sitemap is an important part of a website’s SEO and exists to help search engine crawlers index new URLs on your website. For example, if a site has a large number of pages that were recently updated and the owner wants Google to index their latest content, they could utilize a sitemap.xml containing […] more…
Reverse String WooCommerce WordPress Credit Card Swiper
As 2020 continues to be the worst year in almost anybody’s lifetime, allow me to take this opportunity to stoke the fires of your existential dread even further. As a sequel to my last blog post earlier this year about the credit card swiper that I found on a WordPress ecommerce website using WooCommerce, today […] more…
Skimmers in Images & GitHub Repos
MalwareBytes recently shared some information about web skimmers that store malicious code inside real .ico files. During a routine investigation, we detected a similar issue. Instead of targeting .ico files, however, attackers chose to inject content into real .png files — both on compromised sites and in booby trapped Magento repos on GitHub. Googletagmanager.png Our […] more…
Malicious Magento User Creator
We recently found a simple malicious script leveraging Magento’s internal functions to create a new admin user with the admin role “Inchoo” — probably referring to a Croatian Magento consulting company. The script is simple but very effective and can easily be overlooked as another Magento file without closer inspection. It’s based on a sample […] more…
Fake WordPress Plugin SiteSpeed Serves Malicious Ads & Backdoors
Fake WordPress plugins appear to be trending as an effective way of establishing a foothold on compromised websites. During a recent investigation, we discovered a fake component which was masquerading as a legitimate plugin. Named SiteSpeed, it contained a lot of interesting malicious capabilities. Unwanted Advertisements The malicious plugin can be used by the attacker […] more…
Web Professional Security Survey 2020
According to recent statistics, the web design industry in the United States is now worth more than $40 billion each year. It’s why our annual survey of agencies and web pros is so eagerly anticipated — and we hope you’ll participate in the Sucuri Web Professional Security Survey 2020. If you provide services like website […] more…
Web Professional Security Survey 2020
According to recent statistics, the web design industry in the United States is now worth more than $40 billion each year. It’s why our annual survey of agencies and web pros is so eagerly anticipated — and we hope you’ll participate in the Sucuri Web Professional Security Survey 2020. If you provide services like website […] more…
Spox Phishing Kit Harvests Chase Bank Credentials
Phishing kits are the back end components to a phishing attack and are often designed to make it easier to deploy a phishing page. These kits are typically bundled in compressed files, such as .zip archives, and contain the entire file infrastructure needed to operate a phishing page. Once a kit is uploaded to a […] more…
Pirated WordPress Plugins Bundled with Backdoors
One widespread belief among webmasters is that attackers typically only compromise websites in a couple of ways: by exploiting vulnerabilities or stealing login credentials. Although these are certainly two of the more common attack vectors, another method is often overlooked — but the result is just as hazardous. Whenever an attacker can successfully trick a […] more…
Pirated WordPress Plugins Bundled with Backdoors
One widespread belief among webmasters is that attackers typically only compromise websites in a couple of ways: by exploiting vulnerabilities or stealing login credentials. Although these are certainly two of the more common attack vectors, another method is often overlooked — but the result is just as hazardous. Whenever an attacker can successfully trick a […] more…
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