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Mail from the ‘Boss’ – A Classic Example of a $_POST Mailer Stealing CC Data

We often find mailer scripts while cleaning malicious code from websites. Some of them are easily discovered, while others are obfuscated or heavily encoded. These “mailers” allow bad actors to send unwanted emails from your domain, and can be triggered through the misuse of a vulnerable extension or leftover backdoor malware scripts. The $_POST Mail More Info »

The Impacts of Zero-Day Attacks

Last week, we explained what zero-day vulnerabilities and attacks are. Essentially, zero-day vulnerabilities exist in the wild, with no patch available to prevent hackers from exploiting it. Today, we would like to expand on the impacts of these attacks. What Do Zero-Day Attacks Depend On? The impact a zero-day attack can have on your online More Info »

Understanding Zero-Day Vulnerabilities & Attacks

In computer science, a vulnerability is considered to be a zero-day vulnerability if it’s unknown to all parties interested in patching it, such as: The team maintaining the project The users of the project Vulnerability researchers Vulnerability researchers are the good guys – people who won’t take advantage of the vulnerability for their own gain More Info »

Wikipedia Page Review Reveals Minr Malware

Since December, we’ve seen a number of websites with this funny looking obfuscated script injected at the very top of the HTML code (before the tag). This code is generated by the well-known JJEncode obfuscator, which was once quite popular for encrypting malicious code. Since its popularity dwindled a few years ago, we’ve hardly seen More Info »

Unwanted Pop-ups Caused by Injectbody/Injectscr Plugins

On February 8th, 2018, we noticed a new wave of WordPress infections involving two malicious plugins: injectbody and injectscr. These plugins inject obfuscated scripts, creating unwanted pop-up/pop-unders. Whenever a visitor clicks anywhere on an infected web page, they are served questionable ads. Plugin Location The malicious plugins possess a very similar file structure: Injectbody wp-content/plugins/injectbody/ More Info »

Sucuri Website Backups Product Update

We’re excited to be sharing some changes we’ve recently pushed for our Website Backups product. If you’re not familiar with this feature, Sucuri Website Backups allow you to completely backup your files and database in our secure infrastructure. In a worst-case scenario, where files or databases are overwritten or deleted, these backups make it easy More Info »