.. /.Jar

Executable

Contributors:

mr.d0x

Description:

JAR or Java Archive files are cross-platform file formats based off ZIP formats. JAR files can be used to target different operating systems. Once Java is Installed on Windows, JAR files can be executed upon being double clicked.

OS:

Windows
Mac
Linux

Recommendation:

Block the execution of JAR files. Whitelist users/groups when required.

Resources:

https://www.deepinstinct.com/2020/02/16/a-jar-of-malware/

File Samples: