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 any new malware using it. It was definitely a surprise for us when approximately 3 months ago we noticed the JJEncode obfuscator was once again in use: Minr cryptominer began using it to obfuscate scripts that they loaded from multiple domains like web.clod[.]pw.