Ad Violations: Why Search Engines Won’t Display Your Site If it’s Infected With Malware
David Dede As your website’s webmaster have you ever seen an e-mail from Google like this?: Hello, We wanted to alert you that one of your sites…
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Understanding Denial of Service and Brute Force Attacks – WordPress, Joomla, Drupal, vBulletin
Tony Perez Many are likely getting emails with the following subject header: Large Distributed Brute Force WordPress Attack Underway – 40,000 Attacks Per Minute. Just this week…
More Than 162,000 WordPress Sites Used for Distributed Denial of Service Attack
Daniel Cid Distributed Denial of Service (DDoS) attacks are becoming a common trend on our blog lately, and that’s okay because it’s a very serious issue for…
Highly Effective Joomla Backdoor with Small Profile
Fioravante Souza It feels like every day we’re finding gems, or what appear to be gems to us. We try to balance the use of the term,…
Sucuri CloudProxy Website Firewall Improvements
If you are are a regular reader of our blog you probably know about our CloudProxy Website Firewall, it launched publicly a year ago. Since…
Mysterious Zencart Redirects Leverage HTTP Headers
Denis Sinegubko About a week ago we got an interesting Zencart case. Being that we don’t often write about Zencart we figured it’d be good time to…
Layer 7 DDOS – Blocking HTTP Flood Attacks
There are many types of Distributed Denial of Service (DDOS) attacks that can affect and bring down a website, and they vary in complexity and…
Zero Day Vulnerability in OpenX Source 2.8.11 and Revive Adserver 3.0.1
If you are using OpenX or the new Revive Adserver (fork of OpenX), you need to update it ASAP. Florian Sander discovered a serious SQL…
Understanding Google’s Blacklist – Cleaning Your Hacked Website and Removing From Blacklist
Today we found an interesting case where Google was blacklisting a client’s site but not sharing the reason why. The fact they were sharing very…
Google Bots Doing SQL Injection Attacks
One of the things we have to be very sensitive about when writing rules for our CloudProxy Website Firewall is to never block any major…
Understanding Search Engine Warnings – Part I – Google – This Site May Be Hacked
If you have any questions about malware, blacklisting, or security in general, send them to us: contact@sucuri.net and we will answer here. For all the…