Prevent installation of Agent Tesla

Also Known As: KNAPP EQUIPMENT email spam virus
Type: Trojan
Distribution: Low
Damage level: Severe

"KNAPP EQUIPMENT Email Virus" removal guide

What is "KNAPP EQUIPMENT Email Virus"?

KNAPP EQUIPMENT is the name of a spam campaign (scam) that cyber criminals use to spread Agent Tesla malicious software. To achieve this, they send emails that include an executable file, which, if opened, downloads and installs the aforementioned malware. Generally, these emails are disguised as 'official' and 'important', however, do not trust them and never open attached files.


The scammer behind this email poses as Victoria Mckenzie from KNAPP EQUIPMENT CO.,LTD. Recipients are asked to check the availability of a product, which can be viewed by opening the attached file immediately. The attachment is an executable file that installs Agent Tesla, a remote access tool (RAT) that allows access to computers over networks. This is a legitimate tool, however, cyber criminals often use programs of this type for malicious purposes. Agent Tesla includes a keylogging feature that allows users (in this case, cyber criminals) to record keystrokes. I.e., to record data entered via the keyboard. This feature enables cyber criminals to steal logins, passwords used to access banking, email, and other accounts. Having such information stolen can lead to serious privacy issues and financial loss. Stolen accounts can also be used to extort money from other computer users. For example, the victim's account might be used to borrow money from people, trick them into making banking transactions, or even into installing identical software, thereby allowing cyber criminals to infect even more computers and proliferate Agent Tesla further. If you believe that Agent Tesla is installed on your computer, remove it immediately.

Threat Summary:
Name KNAPP EQUIPMENT email spam virus
Threat Type Remote Access Tool, which includes a keylogging feature.
Hoax Cyber criminals behind this email present it as message from from KNAPP EQUIPMENT CO., and encourage recipients to open the attachment, which supposedly contains information relating to a product.
Attachment(s) 40784637397.scan.pdf.exe
Detection Names (filejhh.exe) ESET-NOD32 (A Variant Of MSIL/Kryptik.SJX), Kaspersky (UDS:DangerousObject.Multi.Generic), Microsoft (Trojan:Win32/CryptInject.YU!MTB), Symantec (ML.Attribute.HighConfidence), 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.
Payload Agent Tesla RAT
Distribution methods Infected email attachments, malicious online advertisements, social engineering, software 'cracks'.
Damage Stolen banking information, passwords, identity theft, the victim's computer added to a botnet.

To eliminate KNAPP EQUIPMENT email spam virus our malware researchers recommend scanning your computer with Spyhunter.
▼ Download Spyhunter
Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Other examples of similar spam campaigns are "Transfast Email Virus" and "FedEx Express Email Virus". Typically, cyber criminals use them to spread malware. For example, malicious software such as TrickBot, Adwind, Hancitor, and FormBook. They can also be used to spread ransomware.

How did "KNAPP EQUIPMENT Email Virus" infect my computer?

Generally, spam campaigns are used to infect computers/proliferate malware through attached files. These are usually Microsoft Office or PDF documents, executable files (.exe), JavaScript files, archive files (such as ZIP, RAR), and so on. They cannot do any damage, however, unless recipients open the files. A Microsoft Office document can infect computers in the following way: when opened, it usually asks for permission to enable macro commands (enable editing) and, if this permission is given, the attached file then starts the download and installation process of malware.

How to avoid installation of malware?

To protect computers from infection through emails, do not open files or web links that are presented in irrelevant emails. The same applies to emails that are sent from unknown, suspicious addresses. Typically, these are disguised as 'important', 'official', and so on, however, they cannot be trusted. Additionally, use Microsoft Office versions released after 2010. These include "Protected View" mode that prevents malicious documents from downloading and installing malware. If you have already opened the "KNAPP EQUIPMENT Email Virus" attachment, we recommend running a scan with Spyhunter for Windows to automatically eliminate infiltrated malware.

Text presented in the "KNAPP EQUIPMENT Email Virus" email message:

Dear, Good day to you! This is Victoria Mckenzie from KNAPP EQUIPMENT CO.,LTD One of your customer directed us to contact you regarding this product as attached below, Please confirm availability of attached products and quote your lowest price on urgent bases. Await your quick response. Best Regards, Victoria McKenzie KNAPPel: +966 20 39284319 Fax: +966 20 83482139 Email: kna /  No 22, Xinshuikeng Section, Shixin Road, Dalong Street, Panyu

Malicious process ("40784637397.scan.pdf.exe") running in Task Manager:

Agent Tesla running in Task Manager

Screenshot of a malicious executable used to distribute Agent Tesla and detected as a threat in VirusTotal:

Agent Tesla executable detected as a threat by VirusTotal

Instant automatic removal of KNAPP EQUIPMENT email spam virus: 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 KNAPP EQUIPMENT email spam virus. Download it by clicking the button below:
▼ DOWNLOAD Spyhunter By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.

Quick menu:

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 1 Download 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.

Our malware removal guides are free. However, if you want to support us you can send us a donation.

Malware activity

Global virus and spyware activity level today:

Medium threat activity

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

QR Code
KNAPP EQUIPMENT email spam 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 KNAPP EQUIPMENT email spam virus on your mobile device.
We Recommend:

Get rid of KNAPP EQUIPMENT email spam virus today:

▼ REMOVE IT NOW with Spyhunter

Platform: Windows

Editors' Rating for Spyhunter:
Editors ratingOutstanding!

[Back to Top]

Free scanner checks if your computer is infected. To remove malware, you have to purchase the full version of Spyhunter.