The "From" field may show a legitimate company name, but the actual email address behind it is a string of random characters or from an unrelated domain.
For further information on identifying malicious attachments, you can check resources from the Federal Trade Commission (FTC) on Phishing . If you’d like, I can help you: Draft a for your team or employees. hm.rar
If you have already clicked the file, immediately disconnect from the internet and run a full scan with a reputable antivirus like Malwarebytes or Bitdefender . The "From" field may show a legitimate company
The email typically masquerades as a legitimate business communication, such as an overdue invoice , a shipping notification , or a quotation request . If you have already clicked the file, immediately
The email uses "Dear Customer" or "Dear Sir/Madam" instead of your name.
It claims you must open the attachment immediately to avoid a fine or a delivery failure.
In your computer settings, ensure "Hide extensions for known file types" is turned off so you can see if a file is actually an .exe disguised with a double extension (e.g., hm.rar.exe ).