Content Downloader Nulled
Our friends over at based in Delft in the Netherlands just contacted me with some amazing research they’ve just published. If you’re technically minded and want as much detail as possible, I recommend you skip this blog entry and head straight over to the (It’s 50 pages). I’ve summarized the details and our response: Nulled scripts are commercial web applications that you can obtain from pirate websites that have been modified to work without a license key. They are the web equivalent of pirated software. City and colour album download zip download.
They include commercial WordPress themes and plugins. It’s come to our attention courtesy of Fox-IT that nulled scripts are being distributed via several websites with a sophisticated infection pre-installed. Fox-IT have dubbed it CryptoPHP because of the fact that it encrypts data before it sends it to command and control servers. The infection is relatively simple: Inside a nulled script there’s a little line of code that looks like this: If you’re a PHP developer you will immediately recognize this as looking strange: It is a PHP directive to include an external file containing PHP source code, but the file is actually an image. Inside this image file is actual PHP and the code is obfuscated (hidden through scrambling) to try and hide the fact that it’s malicious. If you’re a Wordfence customer, and you are doing scans, the default settings for Wordfence do not scan image files for infections. However we are aware of these kinds of infections so a while back we.
• You can only upload files of type 3GP, 3GPP, MP4, MOV, AVI, MPG, MPEG, or RM. • You can only upload videos smaller than 600MB. Vehicle serial number decoder. • You can only upload files of type PNG, JPG, or JPEG. • You can only upload photos smaller than 5 MB.
Nulled is a cracking community, we already have tons of cracked/nulled tools to offer.
However with the detection we just added, Wordfence will detect the ‘include’ directive above in your PHP source, so even if you haven’t enable image-file scanning, you will still catch all known variants of this infection provided you are running the newest version of Wordfence. Fox-IT has determined that the purpose of the malware is, currently, to engage in black-hat SEO by injecting links to other, presumably malicious, websites into your content. However this infection is sophisticated and it communicates with command and control servers that can instruct it to do a variety of tasks including the ability to upgrade itself. So this is a classic botnet infection which turns all infected websites into drones that can be instructed to do just about anything, from sending spam email to SEO spam to hosting illegal content to performing attacks on other websites. The researchers think they may have identified the location of the author. Inside the code of the malware is a user-agent (browser) check that checks to see if the web browser user-agent equals ‘chishijen12’. If it does, then the application is instructed to output all PHP errors to the browser, presumably for debugging purposes.
Fox-IT found an IP address that is associated with that user-agent and the IP is based in the state of Chisinau in Moldova. The name of the state is similar to the user-agent string, which gives their theory some credence. This infection doesn’t just affect WordPress but affects Drupal and Joomla too. The detection we’ve added will actually detect the infection in Drupal or Joomla source code too if that lives under your WordPress directory.
If you’re an enterprise customer and are using an IDS like Snort or the EmergingThreats ruleset, Fox-IT have created Snort signatures which are in the whitepaper and I see that EmergingThreats have updated their open ruleset today to detect this. You can find the and it includes quite a bit of technical detail if you’re a developer or information security researcher. Please help spread the word about the danger involved in downloading or distributing nulled scripts and help keep the community safe. George November 21, 2014 at 10:30 pm What would we do without Wordfence? Thanks for the effort. Regarding themes, absolutely no good idea to use free themes.
Besides base64 code in the footer and embedded affiliate links nobody needs, we now have a 'new' threat. Although, embedding malicious code into image files isn't that new, the way this works is pretty sophisticated.
I sure hope they catch this knucklehead and put him out of business. Last but not least; why isn't Wordfence a core part of Wordpress? Matt December 15, 2014 at 3:34 pm @Graham, I recently started having major issues with redirects and spam groups, etc after switching to a premium ThemeForest theme that starts with 'K' (same price as you mentioned). Does the theme you are referring fit this? If so, and to prevent tarnishing the developer in case it's just a bad extension they packaged with it, can you verify and tell me what the theme name ends with? If we're both having the same issues with the same theme, I'm going to request they fix it ASAP or refund my money and leave a proper review for it.