: Using a .rar extension serves two purposes for attackers:
: It requires the victim to manually extract the file, often bypassing "Mark of the Web" security warnings that apply to direct downloads.
: It hides the actual executable file (e.g., .exe , .vbs , or .js ) from basic email scanners that might only look at the top-level file extension.
: If the file was executed, assume your passwords have been logged. Change your primary credentials (email, banking) from a separate, clean device and enable Two-Factor Authentication (2FA) everywhere.
: If you have already interacted with the file, run a full system scan using a reputable security suite like Microsoft Defender , Malwarebytes , or Bitdefender .
: Remove the file from your system and empty your recycle bin.