Virus and Spyware Removal Guides, uninstall instructions

What is Bruhnet ransomware?

We discovered the Bruhnet ransomware-type program while inspecting new submissions to VirusTotal. This program belongs to the Xorist ransomware family.

After we executed a sample of Bruhnet on our test machine, it encrypted files and appended their names with a ".bruhnet" extension. For example, a file initially titled "1.jpg" appeared as "1.jpg.bruhnet", "2.png" as 2.png.bruhnet", and so on for all of the affected files.

Once the encryption process was completed, a ransom-demanding message - "КАК РАСШИФРОВАТЬ ФАЙЛЫ.txt" - was created on the desktop.

What kind of application is Some-Light?

Some-Light is the name of a browser extension that shows unwanted advertisements. Software of this type is called adware. Typically, users download and install adware unintentionally (without knowing that the application displays ads). Our team discovered Some-Light while examining deceptive web pages.

What is LockLock (MedusaLocker) ransomware?

During a routine investigation of new submissions to VirusTotal, our researchers discovered the LockLock ransomware. It is yet another program from the MedusaLocker ransomware family.

On our test machine, this malware encrypted files and appended their filenames with a ".locklock" extension. Hence, a file originally titled "1.jpg"appeared as "1.jpg.locklock", "2.png" as "2.png.locklock", etc.

Once the encryption process was finished, LockLock (MedusaLocker) ransomware dropped a ransom note named "how_to_back_files.html" onto the desktop. Based on this message, it is evident that this ransomware targets companies rather than home users, and it uses double extortion tactics.

What is kind of scam "USPS pop-up scam"?

It is a scam website, a fake USPS page designed to trick visitors into providing personal information. We discovered this site while inspecting other websites that use rogue advertising networks. USPS is a legitimate mail company providing postal service in the United States. It has nothing to do with this scam page.

What kind of email is "Blocked (Important) Incoming Messages"?

"Blocked (Important) Incoming Messages" is a spam email, which our inspection revealed to be a phishing scam. This letter attempts to deceive recipients into revealing their email account log-in credentials by claiming that a number of messages have failed to reach their inbox.

What kind of malware is OriginLogger?

OriginLogger is the name of a keylogger (keystroke logger) that cybercriminals use to steal sensitive information. It is endorsed as a successor of Agent Tesla. OroginLogger captures keystrokes (records data entered with the keyboard) and includes additional features. Typically, threat actors use keyloggers to steal personally identifiable information, login credentials, and other sensitive data.

What kind of malware is Eebn?

Eebn is the name of ransomware that belongs to the ransomware family called Djvu. We discovered it while checking the VirusTotal page for recently submitted malware samples. Eebn encrypts files, appends its extension (".eebn") to filenames, and creates a text file ("_readme.txt") containing a ransom note.

An example of how Eebn renames files: it changes "1.jpg" to "1.jpg.eebn", "2.png" to "2.png.eebn", "3.exe" to "3.exe.eebn", and so forth.

What is NonLight?

Our researchers discovered the NonLight browser extension while inspecting dubious software-promoting websites. While this piece of software promises to enable dark mode for simple design webpages, NonLight operates as adware instead.

What is Mix Colors?

While inspecting deceptive software-endorsing websites, our researchers discovered the Mix Colors rogue browser extension. It is promoted as a tool capable of changing webpage background colors. Our analysis of this extension revealed that it operates as adware instead.

What kind of page is maincaptcha[.]top?

Maincaptcha[.]top is an untrustworthy website that displays deceptive to trick visitors into agreeing to receive its notifications. Also, it redirects to other pages of this kind (one of them is a scam site). We discovered maincaptcha[.]top while inspecting torrent sites, illegal movie streaming pages, and other sites that use rogue advertising networks.