: Many automated malware sandboxes and threat intelligence platforms label samples with numeric IDs. A file named "57237.rar" is frequently the type of naming seen in virus database repositories or automated analysis reports where a user has uploaded a suspicious file for scanning.
: If you didn't specifically download this from a verified, trusted website, it is safest to delete it immediately. 57237.rar
Could you provide on where you saw this filename? Knowing if it appeared in a system error, a specific website, or a suspicious email would help identify exactly what it is. : Many automated malware sandboxes and threat intelligence
If you have encountered this file on your computer or as an email attachment: a specific website
: Use an updated scanner like Microsoft Defender or Malwarebytes.