How to Submit Files Larger Than 2GB for False Positive Analysis?

Issue: My OPSWAT Portal enforces a 2GB maximum file size for False Detection Reports (FDRs), which prevents customers from submitting larger files (e.g., 9.5GB ISOs) for analysis through the standard portal.

Resolution: Customers have two main options for submitting files larger than 2GB for false positive analysis:

Option 1: Submit Only the Relevant Suspicious Files (Recommended)

• Extract the specific file(s) flagged as false positives.

• Verify each extracted file is under 2GB.

• Submit these through the standard False Detection Report portal.

Option 2: Request Manual Processing via Support Case

• Submit the FDR form as usual.

• After submitting the form, a support case will be automatically created.

• Click the Case No. to access case details

• Upload the complete large file under “Files & CC’s” tab OR share a downloadable link in the Comment box.

• Clearly note "File exceeds 2GB limit - requesting manual FDS2 analysis".

• Include detection details (engine name, hash, scan results).

Workarounds:

• Split archives using tools like 7-Zip or WinRAR if upload fails at 2GB.

Prevention:

• Always check file size before submission.

• Do not upload infected files or any files suspected of containing malware when submitting support cases.

• For ISOs/containers: Extract only the flagged components.

• Include supplemental data: File hashes (SHA-256/MD5), Context about the file's purpose and safety.

• Compress when possible: Use ZIP/7z for smaller uploads.