If you do not recognize where this file came from or who sent it to you, permanently delete it immediately. 🛠️ How to Safely Handle .rar Files
Use your local security suite (like Windows Defender) to perform a manual targeted scan on the specific folder containing the file.
Before doing anything else, upload the file to VirusTotal . This free service will simultaneously run the file against dozens of top antivirus engines to see if it flags as malware or a trojan.