How to remove Pyrogenic/Qealler from the operating system?

Also Known As: Pyrogenic/Qealler virus
Type: Trojan
Distribution: Low
Damage level: Severe

Pyrogenic/Qealler virus removal guide

What is Pyrogenic/Qealler?

Pyrogenic/Qealler is Java-based information stealer that cyber criminals spread with a purpose to steal credentials from various browsers and some other applications. In other words, Pyrogenic/Qealler is used to steal information that could be misused to generate revenue in various ways. If there is a reason to believe that this malware is installed on the operating system, then it should be removed immediately.

pyrogenic qealler malware main

Research shows that Pyrogenic/Qealler targets Chromium-based, Mozilla Firefox-based, Internet Explorer, UC Browser browsers and some other clients, applications. The list of targeted software is provided at the bottom of the article. Basically, cyber criminals use Pyrogenic/Qealler to steal credentials (logins, passwords) of various accounts that could be misused to generate revenue in various ways. Stolen information could be used to access a variety of accounts (and clients) that may be misused to make fraudulent purchases, transactions, spread scam campaigns, malware (e.g., ransomware, Trojans, other malicious programs), trick other people into providing personal information, transferring money to cyber criminals, and so on. Victims of Pyrogenic/Qealler malware attack risk to suffer monetary loss, become victims of identity theft, experience problems related to privacy, browsing safety, and other serious issues. Therefore, users who suspect that this malicious software is installed on the operating system should remove it as soon as possible.

Threat Summary:
Name Pyrogenic/Qealler virus
Threat Type Password-stealing virus, banking malware, spyware.
Detection Names Avast (Java:Malware-gen [Trj]), BitDefender (Java.Trojan.GenericGBA.23108), ESET-NOD32 (Java/Agent.JL), Kaspersky (HEUR:Trojan.Java.SAgent.gen), Full List Of Detections (VirusTotal)
Symptoms Trojans are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen passwords and banking information, identity theft, the victim's computer added to a botnet.

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More examples of malicious programs that operate as information stealers are Urelas, Borr and GrandSteal. Typically, cyber criminals attempt to trick users into installing software of this type so they could misuse stolen personal information to generate revenue. It is common that victims are not aware of presence of malware on the operating system until it causes actual problems like monetary, data loss, and other problems.

How did Pyrogenic/Qealler infiltrate my computer?

In most cases operating systems get infected with various malicious programs through spam campaigns (emails), Trojans, fake software updaters, unofficial activation ('cracking') tools and questionable software download channels, tools. Cyber criminals spread malware via spam campaigns, by sending emails that contain malicious attachments or website links that are designed to download malicious files. Usually they attach files like Microsoft Office, PDF documents, archive files like ZIP, RAR, executable files (like .exe), or JavaScript files. Once opened, those files install some high-risk malware. Fake software updaters are often designed to proliferate malicious programs by installing them instead of updates, fixes, or by exploiting bus, flaws of some outdated software that is installed on victim's operating system. Trojans are malicious programs are often designed to distribute/install other programs of this kind. If a system is infected with a Trojan, then it is very likely that it will get infected with even more malware. Peer-to-peer (P2P) networks (e.g., torrent clients, eMule), free file hosting, freeware download, unofficial websites, third party downloaders, and other similar download channels are used to host, distribute malicious files. Typically, they are disguised as harmless, legitimate. When downloaded and opened, they infect systems with one or another malicious software. Unofficial activation tools are programs that supposed to activate licensed software for free (bypass its activation). However, instead of activating it (or operating system) those tools often install some malware.

How to avoid installation of malware?

Software should not be downloaded or installed through third party downloaders, installers, Peer-to-Peer networks or any other tools that are mentioned in the previous paragraph. It should be downloaded from official, trustworthy websites and through direct links. Attachments (and website links) included in irrelevant emails that are received from unknown, suspicious addresses should not be opened. It should be done only when there is no reason to believe that it is not safe. All installed software should be updated through/with tools that are provided by official software developers and not some third party tools. Software 'cracking' tools are not legal and cause damage too. Therefore, they should not be used as well. Also, it is important to regularly scan the operating system for threats with a reputable antivirus or anti-spyware software and always keep it up-to-date. If you believe that your computer is already infected, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

List of targeted browsers and other applications:

Chromium-based browsers:

  • 7Star
  • Amigo
  • Brave
  • Centbrowser
  • Chedot
  • Chrome Canary
  • Chromium
  • Coccoc
  • Comodo Dragon
  • Elements Browser
  • Epic Privacy Browser
  • Google Chrome
  • Kometa
  • Opera
  • Orbitum
  • Sputnik
  • Torch
  • Uran
  • Vivaldi
  • Yandex Browser

Mozilla Firefox-based browsers:

  • Blackhawk
  • Comodo Icedragon
  • Cyberfox
  • Firefox
  • Icecat
  • K-Meleon

Other software:

  • Composer
  • Internet Explorer
  • Microsoft Outlook
  • Pidgin
  • PostgreSQL
  • Squirrel
  • Tortoise
  • Windows Credentials
  • UC Browser

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Spyhunter is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Spyhunter for Windows. If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

malicious process running on user's computer sample

If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

screenshot of autoruns application

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup. Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings". Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Windows 8 Safe Mode with networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options". In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

windows 10 safe mode with networking

Video showing how to start Windows 10 in "Safe Mode with Networking":


manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

extract and run autoruns.exe

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Click 'Options' at the top and uncheck 'Hide Empty Locations' and 'Hide Windows Entries' options

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".

locate the malware file you want to remove

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.

searching for malware file on your computer

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs. These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software.

To be sure your computer is free of malware infections, we recommend scanning it with Spyhunter for Windows.

About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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