.. /.Jse

Executable
Script
Double Click

Contributors:

mr.d0x

Description:

JSE or JScript Encoded files will run by default on Windows machines using Microsoft's JScript scripting engine. This allows for code execution on the machine.

OS:

Windows

Recommendation:

Block the execution of all JSE files. Alternatively, change the default application for JSE files to a text editor such as Notepad.

Resources:

https://nakedsecurity.sophos.com/2016/04/26/ransomware-in-your-inbox-the-rise-of-malicious-javascript-attachments/

File Samples: