How to uninstall Jeefo malware?

Also Known As: Jeefo virus
Type: Trojan
Distribution: Low
Damage level: Severe

Jeefo virus removal guide

What is Jeefo?

Jeefo is a piece of malware designed to infect (inject a malicious code) in Windows executables (files with the .exe) extension. It is possible that cyber criminals behind this malware may use Jeefo as a tool to collect sensitive information (usernames, passwords, credit card details) or for other malicious purposes. Therefore, it this malware is installed on the operating system, then it should be eliminated as soon as possible.

Jeefo malware

It is common that cyber criminals use malware like Jeefo to inject malicious code in Windows executable (or other) files with a purpose to steal sensitive information like login credentials, credit card details and/or other entered, saved data. Typically, they misuse collected information to make fraudulent purchases, transactions, steal personal accounts (like email, social media, banking accounts), etc. Therefore, users who have their computers infected with such malware may become victims of identity theft, suffer monetary loss, lose access to a variety of personal accounts, experience problems related to online privacy, browsing safety, etc. Additionally, Jeefo could be used to stop legitimate processes from running, for example, prevent installed antivirus from detecting it. Also, it may be used to perform certain actions on the operating system, for example, restart it, shut it down, or even run some commands that would infect the system with some other malware. In one way or another, when malware like Jeefo is installed on a computer it is strongly recommended to get rid of that malware immediately.

Threat Summary:
Name Jeefo virus
Threat Type Password-stealing virus, banking malware, spyware.
Detection Names Avast (Win32:Crypt-SJB [Trj]), BitDefender (Win32.Jeefo.B), ESET-NOD32 (Win32/Jeefo.A), Kaspersky (Virus.Win32.Hidrag.a), Full List (VirusTotal)
Detection Names (Malicious Excel document) Avast (SNH:Script [Dropper]), BitDefender (Trojan.GenericKD.34528383), ESET-NOD32 (VBA/TrojanDownloader.Agent.TWJ), Kaspersky (HEUR:Trojan-Downloader.MSOffice.SLoad.gen), Full List (VirusTotal)
Malicious Process Name (its name may vary) 1갥갂,갏[9갏8갃갌#갡2)갂0^갨
Symptoms In most cases malware is 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, monetary loss.
Malware Removal (Windows)

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More examples of malicious software that is used to steal sensitive data or for other malicious purposes are RedLine Stealer, KryptoCibule, ApocalypseClipper, DarkStealer. How cyber criminals can use malware depends on its capabilities, however, in most cases it is used to perform actions that would help cyber criminals to generate revenue in at least some way.

How did Jeefo infiltrate my computer?

It is known that cyber criminals distribute Jeefo through a malicious Microsoft Excel document. As a rule, such documents infect systems when users open them and enable content/editing (macros commands). Although, malicious MS Office documents can infect systems automatically (once they are opened) if they are opened with MS Office versions that are older than MS Office 2010. It is because those versions do not include the "Protected View" mode which prevents malicious documents from causing installation of malware without getting any permission. Typically, cyber criminals distribute malware through such documents by sending them via email. In other words, they distribute it by using malspam campaigns. Some examples of other types of files that can be attached to emails with a purpose to proliferate malware are executables (like .exe), PDF documents, JavaScript files, archive files like ZIP, RAR.

How to avoid installation of malware?

All software should be downloaded from official websites and via direct links. Third party downloaders (and installers), torrent clients, eMule (and other Peer-to-Peer networks), unofficial pages, etc., should never be used. Quite often they are used by cyber criminals as tools to distribute malicious files/programs. Attachments and websites links in irrelevant emails that are received from unknown, suspicious addresses should not be opened. They should be opened only when there is no reason to suspect that it may cause installation of malware of other damage. Installed programs and operating systems must be activated and/or updated with tools and/or implemented functions that are provided by their official developers. Moreover, it is not legal to activate licensed programs with 'cracking' tools (unofficial activators). Operating system should be regularly scanned for threats with a reputable antivirus or anti-spyware software, that software should be always up-to-date. If you believe that your computer is already infected, we recommend running a scan with Malwarebytes for Windows to automatically eliminate infiltrated malware.

Malicious MS Excel document used to distribute Jeefo:

jeefo malware malicious excel document

Jeefo running in Task Manager as "1갥갂,갏[9갏8갃갌#갡2)갂0^갨" (its name may vary):

jeefo malware 1갥갂갏9갏8갃갌갡2갂0갨 process in task manager

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Malwarebytes 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 Malwarebytes 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 Malwarebytes 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 pcrisk.com 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.

QR Code
Jeefo virus QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of Jeefo virus on your mobile device.
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