https://meltedinhex.com/tags/file-crypter/ Recent content in File Crypter on Melted in Hex https://meltedinhex.com/images/og-social.png https://meltedinhex.com/images/og-social.png Hugo en-us Mon, 06 Jun 2016 22:26:00 +0530 https://meltedinhex.com/posts/analysis-of-ransomware-spread-by/ Mon, 06 Jun 2016 22:26:00 +0530 https://meltedinhex.com/posts/analysis-of-ransomware-spread-by/ <p><strong>Summary:</strong></p> <p>The sample is a JavaScript file. After execution, it downloads a BAT file and an EXE file to run, traverses the computer&rsquo;s files, and encrypts 80 kinds of file extensions including documents, pictures, media, etc. After the encryption, it asks for 0.5 BTC to decrypt the files.</p> <p>The malware author embeds malicious JavaScript in any kind of input data passed to an application that understands it; the application may be a PDF, SWF, etc.</p>