What is Tasco email virus?
Generally, malspam emails are disguised as official messages from legitimate companies and contain an attachment or download link for a malicious file. Cyber criminals send these emails to trick recipients into executing the malicious file, which then installs malware.
In this particular case, they attempt to trick recipients into downloading and executing a file that installs a Remote Access Trojan called Agent Tesla.
This malspam email is disguised as a message from the TASCO/EXCEL corporation that supposedly contains shipping documents. The message 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, this installs Agent Tesla. RAT programs allow attackers to access and control infected computers remotely. Agent Tesla is mainly used as a tool to log keystrokes (i.e., record keyboard input).
Typically, cyber criminals use keystroke loggers to collect sensitive information such as credit card details and login credentials (email addresses, usernames, passwords) and then misuse the details to steal various accounts and identities, and to make fraudulent purchases and transactions, or for other malicious purposes. Therefore, never open links or files in these emails.
|Name||Agent Tesla malware|
|Threat Type||Remote Administration Trojan.|
|Hoax||Message from TASCO/EXCEL Chemical Corporation containing 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 Combo Cleaner.
"Transcrop Bank Email Virus", "Print Works Email Virus", and "DUNCAN ENGINEERING LIMITED ORDER Email Virus" are some examples of other malspam emails. Note that these emails can be used to distribute RATs, but also ransomware, cryptocurrency miners, other types of Trojans, etc.
How did "Tasco email virus" infect my computer?
In this case, recipients cause installation of Agent Tesla only if they download the attached file ("FINAL SHIPPING DOCS.zip") and execute its contents (the "FINAL SHIPPING DOCS.exe" executable file). In summary, no damage can be done via malspam emails as long as recipients do not open the malicious files.
Newer versions demand permission to enable content/editing (macros commands) and cannot infect computers without this (i.e., they include Protected View mode, which prevents malicious documents from causing installation of malware).
How to avoid installation of malware
Installed programs must be activated and updated with tools or implemented functions that are provided by the official developers. No other third party, unofficial tools should be used. Note that it is illegal to activate licensed software with ‘cracking’ tools.
Files and programs should be downloaded from official websites and via direct download links. Avoid third party installers and the tools/sources mentioned above. Do not open website links or files in irrelevant emails that are received from unknown, suspicious addresses.
These bogus emails are often disguised as official and important. Regularly, scan your computer with reputable, up-to-date antivirus or anti-spyware software. If you've already opened "Tasco email virus" attachment, we recommend running a scan with Combo Cleaner Antivirus 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. Combo Cleaner 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 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:
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 Combo Cleaner Antivirus for Windows.