Desktop application, browser extension, or advertisement-supported software (adware/bundleware).
did you download this file from? (a specific website, email, etc.) MyBestDeal-2.3-pc.7z
Use reputable antivirus software to scan the file immediately. MyBestDeal-2.3-pc.7z
I can provide more specific instructions on whether to open it or delete it. MyBestDeal-2.3-pc.7z