Zoho email virus removal guide
What is Zoho email virus?
Phishing emails like this one aim to get the recipients to infect their computers with malware. They usually contain a malicious attachment or website link. Recipients install malware when they download and open a malicious attachment/file. It is important to mention that most phishing emails pretend to be official, important letters from legitimate companies, organizations, or other entities. Either way, it is never safe to open links or files in such emails. This particular malspam email is used to deliver ZLoader.
In most cases, such emails are disguised as letters regarding some invoice, request for payment details, shipment, coronavirus, and so on. In one way or another, cybercriminals design them to look like more or less important, official emails from legitimate companies. However, this particular email does not contain any specific information: it has a website link in it and says that it was sent by a person named Susan. The website link in this email downloads a malicious Microsoft Excel named "info-16.xls" (its name may vary) that, if opened and allowed to enable macros (editing/content), installs the ZLoader (also known as DELoader and Terdot) malware, a banking Trojan. It is known that ZLoader is designed to log keystrokes (record keyboard input) and steal online banking credentials. Gathered information could be used to steal a variety of personal accounts (email, social media, banking) and then use those accounts to make fraudulent purchases, transactions, send phishing emails, steal identities, etc., or sell them to other cybercriminals. Therefore, users who would open the file downloaded via the website link in this email could become victims of identity theft, lose access to their accounts, suffer monetary loss, have serious problems with browsing safety, online privacy, and so on.
|Threat Type||Trojan, password-stealing virus, banking malware, spyware.|
|Hoax||Some document needs to be signed|
|Attachment(s)||Info-16.xls (its name may vary)|
|Detection Names||Arcabit (Trojan.Generic.D2B936EC), BitDefender (Trojan.GenericKD.45692652), ESET-NOD32 (DOC/Kryptik.AZ), Kaspersky (HEUR:Trojan.Script.Generic), Microsoft (TrojanDownloader:O97M/ZLoader.AJR!MTB), 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.|
|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.
More examples of malspam campaigns that cybercriminals started with a purpose to trick recipients into installing malicious software on their computers are "Coca Cola Email Virus", "Cobra Industrial Machines Email Virus" and "Advance Payment Received Email Virus". Examples of malicious programs that cybercriminals proliferate using emails are GuLoader, Ursnif, Emotet, Agent Tesla. It is worthwhile to mention that nowadays, it is very common that attackers send malspam emails with COVID-19 headlines or graphics to trick users into opening malicious documents (or clicking on links).
How did "Zoho email virus" infect my computer?
How to avoid installation of malware?
Do not trust (open/click) attachments or links in irrelevant emails that are sent from unknown, suspicious addresses should not be trusted. Update and activate installed programs using implemented functions or tools that are provided by its official developers. Do not ever use other (third party, unofficial) tools neither to update or activate any software: those tools can contain malware, and it is not legal to use 'cracking' tools to activate software, or use pirated/hacked software. Furthermore, do not download files, programs from untrustworthy, unofficial websites through third-party downloaders or other sources of this kind. The safest sources are official pages and direct download links. Scan the operating system for threats regularly, use a reputable antivirus or anti-spyware suite, and always keep it up to date. If you've already opened "Zoho email virus" attachment, we recommend running a scan with Malwarebytes for Windows to automatically eliminate infiltrated malware.
Text presented in the "Zoho email virus" email letter:
Subject: Zoho Docs - Info-16.xls
Please sign this file
Info-16.xls - ******
If you think this is SPAM, please report to email@example.com.
Zoho Corporation 4141 Hacienda Drive Pleasanton, CA 94588, USA.
Malicious attachment distributed via "Zoho email virus" spam campaign:
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 Zoho email virus?
- STEP 1. Manual removal of ZLoader 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.