Ensure your operating system is set to "Show file extensions." Attackers often name files document.pdf.exe to trick users into thinking it’s a simple PDF.
Emails designed to trick users into downloading and opening an attachment that contains malware. JuHlandDMgglssga01 rar
Before opening any suspicious file, upload it to VirusTotal . This service scans the file against over 70 different antivirus engines to check for known threats. Ensure your operating system is set to "Show file extensions