Tasco email virus removal guide
What is Tasco email virus?
As a rule, malspam emails are disguised as official letters from legitimate companies and contain some malicious attachment or download link for a malicious file. Cyber criminals send such emails with a purpose to trick recipients into executing a malicious file that is designed to install some malware. In this particular case they attempt to trick recipients into downloading and executing a file that is designed to install a Remote Access Trojan called Agent Tesla.
This malspam email is disguised as a letter from TASCO/EXCEL corporation that supposedly contains shipping documents. It has the "FINAL SHIPPING DOCS.zip" (its name may vary) archive file attached to it. This archive file contains a malicious file named "FINAL SHIPPING DOCS.exe". If executed, it installs Agent Tesla. RATs are programs that allow attackers to access and control infected computers remotely. It is known that Agent Tesla is mainly used as a tool to log keystrokes - record keyboard input. Typically, cyber criminals use keystroke loggers to collect sensitive information such as credit card details and/or login credentials (email addresses, usernames, passwords) and then misuse those details to steal various accounts, identities, make fraudulent purchases, transactions, or for other malicious purposes. Therefore, links and/or files in emails like this one should never be opened.
|Name||Agent Tesla malware|
|Threat Type||Remote Administration Trojan|
|Hoax||Letter from TASCO/EXCEL Chemical Corporation containing some shipping documents|
|Attachment(s)||FINAL SHIPPING DOCS.zip (its name may vary)|
|Detection Names||Avast (Win32:MalwareX-gen [Trj]), BitDefender (Trojan.GenericKDZ.71377), ESET-NOD32 (MSIL/Spy.Agent.AES), Kaspersky (HEUR:Trojan-PSW.MSIL.Stelega.gen), Full List Of Detections (VirusTotal)|
|Symptoms||RATs 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 Malwarebytes.
"Transcrop Bank Email Virus", "Print Works Email Virus", "DUNCAN ENGINEERING LIMITED ORDER Email Virus" are a couple of examples of other malspam emails. It is worthwhile to mention that such emails can be used to distribute not only RATs, but also ransomware, cryptocurrency miners, other types of Trojans, etc.
How did "Tasco email virus" infect my computer?
How to avoid installation of malware?
It is advised to not to trust irrelevant emails that have download links or files attached to them, especially if such emails are sent from unknown, suspicious addresses. In most cases such emails are used by cyber criminals as tools to trick recipients into installing malware on their computers. Software should not be downloaded (or installed( via third party downloaders (or installers), from unofficial sites, freeware download pages, via Peer-to-Peer networks (e.g., torrent clients, eMule, etc.). They should be downloaded only from official websites and via direct links. Furthermore, installed programs have to be updated with tools or implemented functions that are provided by their official developers. Other (unofficial, third party) tools should never be used neither to update or activate any software. Besides, it is not legal to use such tools to activate licensed software. Additionally, it is advised to scan the operating system for treats regularly and do that with a reputable anti-spyware or antivirus software. If you've already opened "Tasco email virus" attachment, we recommend running a scan with Malwarebytes for Windows to automatically eliminate infiltrated malware.
Text presented in the Tasco malspam email:
Subject: RE: FINAL SHIPPING DOCS. / BL 00567
Dear sir / Madam,
Kindly find attached shipping docs if they are in other . the BL is showing different arriving port. your urgent responds is highly needed ASAP.
Thanks Best Regards,
TASCO/EXCEL Chemical Corporation
tel: 886 2 2741 5577
fax: 866 2 2741 3450
mobile: 886 (0)938009993
Malicious attachment detected as a threat by Virustotal:
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:
- What is Tasco email virus?
- STEP 1. Manual removal of Agent tesla malware.
- STEP 2. Check if your computer is clean.
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:
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:
Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:
Restart 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.
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.
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.
Video showing how to start Windows 10 in "Safe Mode with Networking":
Extract the downloaded archive and run the Autoruns.exe file.
In 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.
Check 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".
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.
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.