E-mail Attachments You Should Never Open Regardless of Where They Came From
Would you share this article with others to help inform them?
Below is a list of file extensions belonging to e-mail attachments, which you should never open, regardless of where they came from, or who sent them. A malicious e-mail attachment is one of the most effective and easiest methods of infecting a computer. Always check the file extension of an e-mail attachment, because cyber-criminals can disguise an attachment as a Microsoft Word document, PDF document, or other legitimate documents. Attachments ending with ".zip", ".rar", ".7z", "r01", ".iso", and ".tar" are compressed files that should not be open if the sender is unknown to you, or you were not expecting the email message.
Please continue reading below.
Here are the e-mail attachments and their extensions that you should never open regardless of where they came from:
File Extension and Description
-
.JAR - Java archive
-
.ACE - Zip archive
-
.7Z - Zip archive
-
.R01 to .R25 - Zip archive
-
.TAR - Zip archive
-
.ISO - Image file
-
.BIN - Image file
-
.SCR - Windows Screen Saver
-
.BAT - Batch File Windows
-
.CMD - Command Script Windows
-
.COM - Command File Windows
-
.COMMAND - Terminal Command Mac OS
-
.CSH - C Shell Script Mac OS, Linux
-
.EXE - Executable Windows
-
.JSE - JScript Encoded File Windows
-
.KSH - Unix Korn Shell Script Linux
-
.LNK - File Shortcut Windows
-
.MSC - Microsoft Common Console Document Windows
-
.MSI - Windows Installer Package Windows
-
.MSP - Windows Installer Patch Windows
-
.MST - Windows Installer Setup Transform File Windows
-
.OSX - Executable Mac OS
-
.OUT - Executable Linux
-
.PIF - Program Information File Windows
-
.PS1 - Windows PowerShell Cmdlet Windows
-
.REG - Registry Data File Windows
-
.RGS - Registry Script Windows
-
.RUN - Executable Linux
-
.SHB - Windows Document Shortcut Windows
-
.SHS - Shell Scrap Object Windows
-
.VB - VBScript File Windows
-
.VBE - VBScript Encoded Script Windows
-
.VBS - VBScript File Windows
-
.VBSCRIPT - Visual Basic Script Windows
-
.WS - Windows Script Windows
-
.WSF - Windows Script Windows
Note: Some of the names, addresses, email addresses and telephone numbers in email samples on this website may have been impersonated.
Please share what you know or ask a question about this article by leaving a comment below. Also, check the comment section below for additional information, if there is any.
Remember to forward suspicious, malicious, or phishing email messages to us at the following email address: info@onlinethreatalerts.com
Also, report missing persons, scams, untrustworthy, or fraudulent websites to us. Tell us why you consider the websites untrustworthy or fraudulent.
If you want to quickly find answers to your questions, use our search ![]()
engine.
You can help maintain Online Threat Alerts by paying a service fee. Click here to make payment.
Comments, Questions, Answers, or Reviews
![]()
To help protect your privacy, please do not post or remove, your full name, telephone number, email address, username, password, account number, credit card information, home address or other sensitive information in or from your comments, questions, or reviews. Also, anonymous posts cannot be deleted or edited, and when you make a post, we will use your IP address to display your approximate location to other users.
Please continue reading below.
![]()
Show More Comments (4)
Write Your Comment, Question, Answer, or Review
Write your comment, question or review in the box below to share what you know or to get answers. Please revisit after an hour or more to view reponses or answers to you questions.