Return of the EXIF PHP Joomla Backdoor
Our Remediation and Research teams are in constant communication and collaboration. It’s how we stay ahead of the latest threats, but it also presents an opportunity to identify interesting threats...
View ArticleSEO Spam Technique Designed to Avoid Detection
Ten years ago the internet looked very different than it does now. Today, web designers have more options and standards to make a website stand out. Do you recall when most sites used clashing colors,...
View ArticleAsk Sucuri: How Modern Web Phishing Works
Most of us have experienced some kind of phishing attempt in our online lives, and we have seen phishing grow in complexity. Usually, we notice that the login pages are crafted to convince users they...
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Fake Plugins, Fake Security
Update: The plugin name is fake and has nothing to do with the well-known WP-SpamShield plugin in the official WordPress plugin repository. WordPress users are becoming increasingly more aware of...
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Obfuscation Through Legitimate Appearances
Recently, I analyzed a malware sample provided by our analyst Edward C. Woelke and noticed that it had been placed in a core WordPress folder. This seemed suspicious, since no such core WP file like it...
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Persistent Malicious Redirect Variants
It’s always nice to meet an old friend or someone you used to know well. You have news to share and talk about, stories to tell, etc. But what if your “old friend” was on the criminal side of things...
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Outdated Duplicator Plugin RCE Abused
We’re seeing an increase in the number of cases where attackers are disabling WordPress sites by removing or rewriting its wp-config.php file. These cases are all linked to the same vulnerable...
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Fake Volkswagen Campaign Spreads Through Social Networks
We recently investigated a suspicious link received by one of my colleagues on WhatsApp. The message (in Portuguese) states that Volkswagen is offering 20 free cars until the end of the year, and...
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The Anatomy of Website Malware: An Introduction
We see a lot of files infected by website malware on a daily basis here at Sucuri Labs. What we don’t see is very many categories of infections. The purpose of this blog post series is to provide an...
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The Anatomy of Website Malware Part 2: Credit Card Stealers
One of the biggest malicious trends in the last few months and years are credit card stealers — also commonly referred to as credit card skimmers or cc stealers. In the second part of this Website...
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Targeting mobile devices the easy way
With the outburst of mobile-only malware, we’re seeing a lot of mobile-devices targeted campaigns in last years. There are lot of ways how to make sure that the malware / redirect will be activated...
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