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Prevent installation of Agent Tesla via Teco New Order malspam emails

Also Known As: Agent Tesla malware
Type: Trojan
Damage level: Severe

What is Teco New Order email virus?

Cyber criminals behind these malspam emails attempt to trick recipients into clicking a download link for a malicious file, and then opening the file, or executing the file attached to an email. The main purpose of these emails is to deceive recipients into infecting their computers with malicious software.

This particular malspam email is used to distribute a Remote Access Trojan called Agent Tesla.

Teco New Order email virus malware-spreading email spam campaign

Cyber criminals behind this malspam email attempt to trick recipients into believing that they have received an email from a company called Teco. The email supposedly has a document regarding an order attached to it. In fact, this email has a malicious IMG ("Teco New Order.img") file attached, which, if executed, installs Agent Tesla.

As mentioned, Agent Tesla is a RAT. This particular RAT logs keystrokes (records keyboard input) and steals credentials saved on a number of web browsers, email and messaging clients, FTP, VPN clients, and download managers.

It also blocks access to Task Manager and the Registry, and prevents victims from executing commands via the Command Prompt and using the other Windows Operating System features.

Typically, cyber criminals use malware with these capabilities to collect sensitive, personal information such as login credentials (usernames, email addresses, passwords), credit card details and other personal data, which is then misused to steal identities, make fraudulent purchases and transactions, spread malware via email and other hijacked/stolen accounts, deceive other users into transferring money, and for other malicious purposes.

Users with computers infected with Agent Tesla can thus become victims of identity theft, suffer monetary loss, experience problems relating to online privacy and browsing safety, and encounter other serious issues.

Threat Summary:
Name Agent Tesla malware
Threat Type Trojan, password-stealing virus, banking malware, spyware.
Hoax Message from Teco regarding an order.
Attachment(s) Teco New Order.img (its name may vary).
Detection Names Avast (Win32:MalwareX-gen [Trj]), BitDefender (Trojan.GenericKD.35056115), ESET-NOD32 (A Variant Of MSIL/Kryptik.YLZ), Kaspersky (HEUR:Trojan-PSW.MSIL.Agensla.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.
Payload Agent Tesla
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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To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available.

To summarize, cyber criminals behind malspam campaigns attempt to trick users into executing files that install malware. They disguise their emails as official messages sent from legitimate companies. Some examples of other malspam campaigns similar to this one are "Tasco Email Virus", "Transcrop Bank Email Virus" and "Print Works Email Virus".

How did Teco New Order email virus infect my computer?

The IMG file ("Teco New Order.img) attached to this email installs the Agent Tesla RAT, but only if recipients download and open/execute it. The same applies to most other files used in malspam campaigns (e.g. malicious Microsoft Office/PDF documents, executable files such as .exe, archive files such as ZIP, RAR, and JavaScript files).

Note that malicious MS Office documents can install malware on computers only if users enable content/editing (macros commands).

Note that computers are infected automatically if users open these documents with MS Office versions released before 2010 (these versions do not include "Protected View" mode, which prevents malicious documents from installing rogue software).

How to avoid installation of malware?

Do not trust irrelevant emails that have files attached (or contain website links) and are received from unknown, suspicious addresses. Software should not be downloaded or installed through third party downloaders, installers, unofficial pages or other similar sources/tools. Use only official websites and direct links.

Installed software should never be updated or activated with third party, unofficial tools, since they can install malware. Furthermore, it is illegal to use third party tools to activate licensed software. The only legitimate way to update and activate software is to use tools and functions that are provided by the official developers.

Regularly scan your computer with reputable antivirus or anti-spyware software - keep this software up to date. If you habe already opened "Teco New Order email virus" attachment, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "Teco New Order email virus" email message:

Subject: Teco New Order

Hi ,
 
Please find new order per the attached from TECO

Please let us have the PI ASAP ! and confirm the earliest delivery time.

Best regards,
John

Joan Lluch
Sales Agent    m.+34 61 962 83 98   BGlobal > Tramuntana 13 > 08950 > Esplugues de Ll. (Barcelona) SPAIN

File attached to Teco New Order malspam campaign identified as threat by multiple detection engines:

teco new order email virus virustotal detections

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer 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:
▼ DOWNLOAD Combo Cleaner By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available.

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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.

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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