Floxif virus (Removal Guide) - 2021 update

Floxif virus Removal Guide

What is Floxif virus?

Trojan.floxif – a Trojan horse which was spread via the hacked version of CCleaner

The illustration of Floxif trojanTrojan.floxif is a trojan horse that was capable of entering Windows 32-bit machines only by camouflaging itself as the executable of legitimate security software.

Trojan.floxif is a malware[1] infection that was active during the period of August 15 and September 12, 2017, and infected more than 2 million users worldwide.[2] The virus entered machines with the help of the popular PC repair software CCleaner's executable, which cybercriminals managed to hack and insert malicious payload. After the infiltration, the Floxif virus gathered a large amount of data about the system (such as installed software, unique ID number, MAC address, etc.) and sent it off to Command and Control[3] server. Also, the malicious software is capable of downloading and installing additional threats on the system, although no evidence was discovered of it doing so.

SUMMARY
Name Trojan.floxif
Type Trojan horse
Other detections Win32/Floxif, Trojan.floxif.trace, Win32/Floxif.A, etc.[4]
Infiltration Hacked CCleaner executable
Affected versions CCleaner (5.33.6162) or CCleaner Cloud (1.07.3191)
Active Between August 15 and September 12, 2017
Status Patched
Elimination Use reputable security software like ReimageIntego or SpyHunter 5Combo Cleaner to get rid of malware

Floxif Trojan was installed in the main program’s executable – CCleaner.exe. Therefore, the virus entered the system if a user downloaded hacked versions of CCleaner (5.33.6162) or CCleaner Cloud (1.07.3191) programs. However, the virus was only active on a 32-bit Windows OS. Additionally, Trojan.floxif did not execute its payload if the victim was not using administrator's account.

Researchers detected several versions of the Trojan.floxif virus. However, most of them act similarly. They might steal a bunch of information about a victim, including technical details about a targeted computer, such as:

  • the name of the targeted computer,
  • the list of installed programs,
  • the list of active processes,
  • MAC addresses of the first 3 network adapters,
  • unique computer’s ID.

Besides, the so-called Trojan.Floxif malware might also track personal victim’s information, such as login credentials or credit card data. Nevertheless, it also operates as a keylogger; it might also install other malicious programs, such as ransomware, soon after connecting to its remote server.

Thus, it goes without saying that Trojan.Floxif removal is crucial to protect your computer, data and sensitive information. Users who installed CCleaner between August 15 and September 12 are advised to update the program and scan the device with reputable malware removal tool, such as ReimageIntego or SpyHunter 5Combo Cleaner. These steps will help to terminate the Trojan.

The image of Floxif virusFloxif virus was spreading with a corrupted version of CCleaner.

The activity of the Trojan.PRForm.A

As mentioned before, the Trojan.floxif injected malicious code to the original CCleaner’s executable. Thus, when users downloaded this program, they installed malware as well. When CCleaner malware is installed, it immediately downloads a symsrv.dll file to this directory:

C:\Program Files\Common Files\System\symsrv.dll

Furthermore, it creates a specific Windows Registry sub-key:

HKEY_LOCAL_MACHINE\SOFTWARE\Piriform\Agomo

Besides, it might also make other modifications in the registry in order to execute malicious tasks and hide in the system. Furthermore, Floxif connects to several Windows APIs and tries to delete important system files:

%Program Files%\Common Files\System\symsrv.dll.dat
%Users%\Administrator\Local\Temp\…\*.tmp

As you can see, this dangerous Trojan horse cause numerous system changes and pose a danger to the user’s privacy. Therefore, CCleaner users are urged to remove Trojan.Floxif virus from the device immediately.

Distribution of the malicious programs went to the next level

Authors of the CCleaner 5.33 virus managed to hack the original program’s executable. Therefore, they injected malicious code to a legitimate program and managed to infect around 2.27 million people who installed a compromised version of the CCleaner which was available on the developers (Piriform) website since August 15th, 2017.

Trojan.floxif malwareTrojan.floxif is malware designed to steal personal information and send it off to a remote server.

Besides, the latest research data reports that the trojan launched targeted attacks towards technology giants, such as Microsoft, Samsung, Sony, etc. It is reported that trojan affected about 20 computers[5] owned by these companies.

Security experts from Sweden report that everyone who downloaded this program might have been infected with the CCleaner virus. Thus, users should update it to the latest version immediately. Scanning the system with professional antivirus is also recommended to make sure that any malicious components were not left on the system.

Crucial steps to take after Trojan.floxif attack

To remove Trojan.floxif from the device and protect your personal information from cyber criminals, you should complete these three important tasks:

  1. Update CCleaner to 5.34 version (or higher).
  2. Run a full system scan with reputable malware removal software.
  3. Change passwords.

Updating CCleaner to the latest version may not be enough. To perform proper Trojan.floxif removal, you should also check the device with professional security software, such as ReimageIntego. This step is necessary because hackers might still have access to your computer or install malware. Once you run antivirus or malware removal tool, all dangerous components will be eliminated.

When the Floxif is removed entirely, you should also change social network, email, banking, and other accounts’ passwords. It’s unknown what sensitive data hackers managed to steal. Thus, you have to make sure that criminals do not have access to your accounts.

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Compatible with Microsoft Windows Compatible with macOS
What to do if failed?
If you failed to fix virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

Getting rid of Floxif virus. Follow these steps

Manual removal using Safe Mode

Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.

Step 1. Access Safe Mode with Networking

Manual malware removal should be best performed in the Safe Mode environment. 

Windows 7 / Vista / XP
  1. Click Start > Shutdown > Restart > OK.
  2. When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. – it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
  3. Select Safe Mode with Networking from the list. Windows 7/XP
Windows 10 / Windows 8
  1. Right-click on Start button and select Settings.
    Settings
  2. Scroll down to pick Update & Security.
    Update and security
  3. On the left side of the window, pick Recovery.
  4. Now scroll down to find Advanced Startup section.
  5. Click Restart now.
    Reboot
  6. Select Troubleshoot. Choose an option
  7. Go to Advanced options. Advanced options
  8. Select Startup Settings. Startup settings
  9. Press Restart.
  10. Now press 5 or click 5) Enable Safe Mode with Networking. Enable safe mode

Step 2. Shut down suspicious processes

Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Click on More details.
    Open task manager
  3. Scroll down to Background processes section, and look for anything suspicious.
  4. Right-click and select Open file location.
    Open file location
  5. Go back to the process, right-click and pick End Task.
    End task
  6. Delete the contents of the malicious folder.

Step 3. Check program Startup

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Go to Startup tab.
  3. Right-click on the suspicious program and pick Disable.
    Startup

Step 4. Delete virus files

Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:

  1. Type in Disk Cleanup in Windows search and press Enter.
    Disk cleanup
  2. Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
  3. Scroll through the Files to delete list and select the following:

    Temporary Internet Files
    Downloads
    Recycle Bin
    Temporary files

  4. Pick Clean up system files.
    Delete temp files
  5. You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):

    %AppData%
    %LocalAppData%
    %ProgramData%
    %WinDir%

After you are finished, reboot the PC in normal mode.

Remove Floxif using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt
    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Floxif. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with ReimageIntego and make sure that Floxif removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Floxif and other ransomwares, use a reputable anti-spyware, such as ReimageIntego, SpyHunter 5Combo Cleaner or Malwarebytes

How to prevent from getting malware

Protect your privacy – employ a VPN

There are several ways how to make your online time more private – you can access an incognito tab. However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of Private Internet Access VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise. Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and Private Internet Access VPN will let you browse the Internet without a feeling of being spied or targeted by criminals. 

No backups? No problem. Use a data recovery tool

If you wonder how data loss can occur, you should not look any further for answers – human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence. In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.

If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. Data Recovery Pro is one of the leading file recovery solutions you can find on the market – it is likely to restore even lost emails or data located on an external device.

About the author
Linas Kiguolis
Linas Kiguolis - Expert in social media

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References
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