: Ensure your computer shows file extensions so you can see if a file is secretly an .exe disguised as something else.

: Opening such a file could lead to a Trojan horse , ransomware , or spyware infection on your device. Recommended Actions

: If you were expecting a file from someone, contact them through a different medium (like a phone call or a new email thread) to confirm if they actually sent it. How to Stay Safe

: If you have already clicked on the file, run a full system scan using a reputable antivirus program like Windows Defender, Malwarebytes, or Norton .

: The .rar extension indicates a compressed folder created with WinRAR. These are often used by bad actors to hide malicious executables from basic email security scanners.

: Even if the email appears to come from a known contact, their account may have been compromised.

: Legitimate businesses and contacts typically use descriptive file names (e.g., Invoices_April_2026.rar ). A string like "prneynfgtthx" is often generated by "bots" to create unique file signatures that bypass spam filters.