Submit a file for malware analysis

Microsoft security researchers analyze suspicious files to determine if they are threats, unwanted applications, or normal files. Submit files you think are malware or files that you believe have been incorrectly classified as malware. For more information, read the submission guidelines.

Submit file as a

Home customer

Customers using Microsoft security products at home or in small organizations

Enterprise customer

Corporate account holders with licenses to run Microsoft security solutions in their businesses

Software developer

Software providers wanting to validate detection of their products