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.
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Windows Defender Response Portal
This portal is for internal use by Microsoft employees to report detection concerns to Windows Defender Research
Submit a file internally
Submit files so our analysts can check them for malicious characteristics. Provide the specific files that need to be analyzed and as much background information as possible.SUBMIT A FILE
Escalate to WD Response
WD Response serves as the primary contact point to our malware analysts. Submit your files through regular channels before contacting WD Response for special requests or submission follow-ups.CONTACT WD RESPONSE
Attack Surface Reduction
Report issues with undetected suspicious activities or activities that have been incorrectly detected (false positives).ATTACK SURFACE REDUCTION
Report issues with the detection and blocking of URLs and IP addresses.NETWORK PROTECTION
View your submissions
Track the results of your submissions. You can view detailed detection information of all the files you have submitted as well as the determination provided by our analysts.SUBMISSION HISTORY
Specify the file and provide information that will help us to efficiently handle your case.
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Select the number of affected devices
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SAID validated. Make high priority submissions only when dealing with active malware or incorrect detections that require immediate attention
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