Step-by-Step Malware Removal Instructions

VistaQuantum Adware (Mac)
Mac Virus

VistaQuantum Adware (Mac)

VistaQuantum is a rogue application that we discovered while inspecting new submissions to VirusTotal. Our analysis of this piece of software revealed that it operates as adware. Additionally, VistaQuantum belongs to the AdLoad malware family. Adware enables the placement of third-party

WORLD GRASS Ransomware
Ransomware

WORLD GRASS Ransomware

WORLD GRASS (also known as EarthGrass/EarthGress) is a ransomware-type program that our research team found while inspecting new submissions to VirusTotal. After launching a sample of this ransomware on our test machine, we learned that it encrypts files and appends their filenames with a ".34r7h

Saitama Backdoor
Trojan

Saitama Backdoor

Saitama is the name of a backdoor malware (written in .Net) that abuses DNS protocol for C2 (Command and Control) communications. It can execute remote commands and drop files. We have discovered this backdoor during the analysis of an email containing a malicious attachment (an Excel document).

Redem Mikhail Ransomware
Ransomware

Redem Mikhail Ransomware

Our malware researchers have discovered a new ransomware variant called Redem Mikhail during a routine check of malware samples submitted to the VirusTotal page. They found that Redem Mikhail is part of the Spora ransomware family. Once executed, it encrypts files, modifies their filenames, and cr

PDFCreator Unwanted Application (Mac)
Mac Virus

PDFCreator Unwanted Application (Mac)

While inspecting new submissions to VirusTotal, our researchers found the PDFCreator application. It has multiple detections as "adware" on VirusTotal. Although we did not observe any characteristics of such software during analysis (potentially due to some sort of incompatibility between PDFCr

VoltageTask Adware (Mac)
Mac Virus

VoltageTask Adware (Mac)

Our team has discovered the VoltageTask application while inspecting various deceptive web pages. After installing and analyzing this app, we learned that it displays intrusive advertisements. Therefore, we categorized VoltageTask as adware (advertising-supported software). A big part of

Cauthaushoas.com Ads
Notification Spam

Cauthaushoas.com Ads

While inspecting questionable websites, our research team discovered the cauthaushoas[.]com rogue webpage. It is designed to host dubious content, promote browser notification spam, and redirect visitors to other (likely unreliable/malicious) sites. Most users enter websites like cauthaushoas[.]c

Mkjxtu.com Ads
Notification Spam

Mkjxtu.com Ads

We discovered the mkjxtu[.]com page while examining various illegal movie streaming pages, torrent sites, and other sites that use rogue advertising networks. During analysis, we found that mkjxtu[.]com displays deceptive content/uses a clickbait technique to get permission to show notifications.

Fefg Ransomware
Ransomware

Fefg Ransomware

We have discovered the Fefg ransomware while examining the malware samples submitted to VirusTotal. The purpose of Fefg is to encrypt files. Also, this ransomware appends ".fefg" extension to filenames and creates the "_readme.txt" file. We found that Fefg is part of the ransomware family called D