Blog

Ranstop stops zero-day Jaff variant – TEMASOFT Lab Demo

Case subject – A zero-day Jaff (WLU extension)

Jaff ransomware has seen some updates lately and we selected the newest variant for today’s exercise.
At the time of the recording, the detection rate on virustotal is 18/60. Jaff is distributed through email SPAM campaigns that trick users into opening malicious attachments. A common example is the claim that the email contains an invoice, but the victim actually opens a malicious document that downloads and executes the ransomware payload.

Case facts

This variant takes some time before it starts encrypting files, testing for various environmental parameters. After the encryption process starts, TEMASOFT Ranstop detects the ransomware within seconds. The alert is fired up in the notification dialog, while the file recovery and cleanup processes run in the background.

Case Conclusion

TEMASOFT Ranstop successfully stopped this zero-day ransomware and recovered the damaged files.


Click here to watch TEMASOFT Ranstop in action (video)!

Virustotal details for the payload;

About TEMASOFT Ranstop

TEMASOFT Ranstop is an anti-ransomware software that detects present and future ransomware, based on file access pattern analysis with a high degree of accuracy. At the same time, it protects user files so that they can be restored in case of malware attacks or accidental loss.

For more information, follow us on social media and subscribe to our newsletter.

This post was last modified on August 21, 2023 7:27 am

Calin Ghibu

Technical background: over 15 years experience in testing, developing, researching and managing network security solutions. Currently focusing on information security and IT management. Specialties: Network audit, information security, web security, endpoint security, perimeter security SIEM, legal compliance, competitive intelligence.

Share
Published by
Calin Ghibu
Tags: ranstop

Recent Posts

The Role of File Monitoring Solutions in Maintaining File Integrity

In the digital world, information is often stored and transferred through files. From the most…

May 12, 2023

Guide to Conducting an Efficient File Access Permissions Audit for Admins and Technology Managers

Introduction Data security is more important than ever in today's fast-paced digital world. One critical…

April 9, 2023

File Integrity Monitoring: What It Is and Why It Matters

Introduction: Cyber threats are a growing concern for businesses and individuals alike. With the increasing…

March 5, 2023

Monitoring Essential Microsoft IIS Server Configuration Files for Enhanced Security

Microsoft Internet Information Services (IIS) is a popular web server that is widely used to…

February 25, 2023

Tracking file changes helps admins solve server configuration problems

File tracking is an important aspect of server administration, and it can help administrators detect…

February 1, 2023

Three reasons why admins should use file monitoring solutions

File monitoring solutions are essential tools for administrators to manage and protect their organizations' data…

January 6, 2023