How to remove FickerStealer malware from the operating system

Also Known As: FickerStealer virus
Type: Trojan
Damage level: Severe

What is FickerStealer?

FickerStealer is a malicious program categorized as a stealer. It extracts (steals) various sensitive and private information from infected devices. FickerStealer malware targets Windows Operating Systems: Windows XP through to Windows 10. Since the developers of this malicious program offer it for sale online, how it is proliferated depends on the cyber criminals using it.

FickerStealer malware detections on VirusTotal

The main functionality of FickerStealer is to extract and exfiltrate information from various browsers and other applications. According to the malware's promotional material, it is capable of stealing data from more than 40 different browsers. Amongst listed examples are Chrome, Mozilla Firefox, Chromium, Opera and Internet Explorer/Microsoft Edge.

From compromised browsers, this malicious program can extract stored account log-in credentials (i.e. IDs, usernames and passwords), saved credit card details, browser cookies, auto-fill data, etc. FickerStealer can similarly extract information stored on the Windows Credentials Manager. More than 15 cryptocurrency wallets are listed as vulnerable to this malware.

FTP (File Transfer Protocol) clients FileZilla and WinScp are targeted by FickerStealer as well. Among other applications attacked by the malicious program are: Steam - a game content delivery client; Mozilla Thunderbird - an email client, and; Pidgin and Discord messaging platforms.

Other features of this stealer include stealing system information (e.g. processor, CPU, installed applications, screen resolution, etc.) and taking screenshots.

To summarize, FickerStealer infections can result in serious privacy issues, financial loss and even identity theft. If it is suspected or known that FickerStealer (or other malware) has already infected the system, use anti-virus software to eliminate it immediately.

Threat Summary:
Name FickerStealer virus
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Detection Names Avast (Win32:TrojanX-gen [Trj]), BitDefender (Gen:Variant.Jaik.41292), ESET-NOD32 (A Variant Of Win32/Agent.ULJ), Kaspersky (Trojan.Win32.Agentb.kaom), Full List (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.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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CovidMoistStealerDarkStealerRedLine, and Anubis are some examples of other stealer-type malicious programs. This malware extracts and steals data such as from the infected systems and applications installed on it, services accessed through it, etc.

Stealers also have other capabilities such as spying functionality (e.g. taking screenshots, recording audio/video from integrated/connected microphones and cameras, etc.), downloading/installing additional malware (e.g. Trojans, ransomware, etc.), and so on. The only goal of this malicious software is to generate revenue for the cyber criminals using it.

How did FickerStealer infiltrate my computer?

Malware (including ransomware) is usually distributed via malspam campaigns, unofficial software activation ('cracking') tools, Trojans, dubious file/software download sources, and fake software updating tools. When cyber criminals attempt to distribute malware via malspam campaigns, they send emails that contain malicious attachments or download links for malicious files.

Typically, they disguise their emails as official and important. If recipients open the attached file (or a file downloaded via a website link), they cause installation of malicious software. Cyber criminals commonly attach executable files (.exe), archive files such as RAR, ZIP, PDF documents, JavaScript files and Microsoft Office documents to their emails.

Software 'cracking' tools supposedly activate licensed software illegally (bypass activation), however, they often install malicious programs and do not activate any legitimate installed software. Trojans are other rogue programs that can cause chain infections. I.e., when a Trojan is installed on the operating system, it can install additional malware.

Free file hosting websites, freeware download websites, Peer-to-Peer networks (e.g., torrent clients, eMule), unofficial websites, and third party downloaders are examples of other sources that are used to distribute malware. Cyber criminals disguise malicious files as legitimate and regular.

When users download and open them, they inadvertently infect their computers with malware. Fake software updating tools install malicious software rather than updates/fixes for installed programs, or they exploit bugs/flaws of outdated software that is installed on the operating system.

How to avoid installation of malware

To avoid infecting the system with malware spread through spam mail, you are strongly advised not to open suspicious or irrelevant emails, especially those with any attachments or links present in them. Use official and verified download channels.

Additionally, all programs must be activated and updated with tools/functions provided by legitimate developers, since illegal activation tools ("cracks") and third party updaters commonly proliferate malicious software. To ensure device integrity and user safety, it is paramount to have reputable anti-virus/anti-spyware installed and kept updated.

Furthermore, use these programs to run regular system scans and to remove detected/potential threats. If you believe that your computer is already infected, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

FickerStealer malware promoted/sold online:

FickerStealer malware sold online

Five examples of spam emails used to spread Cobalt Strike malware, which injects FickerStealer into the system:

Spam email used to spread Cobalt Strike malware which injects FickerStealer into the system (sample 1) Spam email used to spread Cobalt Strike malware which injects FickerStealer into the system (sample 2) Spam email used to spread Cobalt Strike malware which injects FickerStealer into the system (sample 3) Spam email used to spread Cobalt Strike malware which injects FickerStealer into the system (sample 4) Spam email used to spread Cobalt Strike malware which injects FickerStealer into the system (sample 5)

Text presented within these emails (all are virtually identical):

We are reaching out to you in regards to the recent invoice #- for the services we provided for your company.

You can download the invoice by clicking on this link

Please, pay the balance of $- complete the payment by -.

We are ready to help you if you have any questions or concerns.


Thank you!

Update 21 April 21 2021 - FickerStealer has been observed being proliferated via malicious websites. They were disguised as the Spotify, Microsoft Store, and file format conversion sites. These web pages were promoted through malvertising (malicious software advertising) campaigns.

The ads were thematically linked under the guise of the malignant websites, e.g., promoted a fake chess game application - "xChess 3'", etc. When entered, the pages automatically downloaded an archived file (e.g., "xChess_v.709.zip"; filename may vary) via the Amazon AWS service.

Once the executable contained therein was run, it triggered the infection chain (installation) of FickerStealer malware.

Fake Spotify website used to proliferate FickerStealer malware:

Fake Spotify website spreading FickerStealer

Fake Microsoft Store website used to proliferate FickerStealer malware:

Fake Microsoft website spreading FickerStealer

Fake file format converter website used to proliferate FickerStealer malware:

Fake online converter website spreading FickerStealer

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner 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 Combo Cleaner Antivirus 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 autoruns.zip 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 Combo Cleaner Antivirus for Windows.

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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 pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

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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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