Google Search Console is super useful and helpful and the messages can be critical for the performance and safety of your web site. But some messages are not as useful, such as the uncommon downloads notification.
Over the past few weeks, webmasters have been reporting getting a ton of these and were unsure how to act on them. The help document has this under the security issues report and says:
But most people who get these do not know where to start when it comes to fixing the problem and want Google to be more specific about where to find the issue.
So John Mueller of Google said on Twitter that his advice is that if you can’t find the issue on your web site then just submit a request for review and then ignore it. If Google comes back to you with another message with more details, then go ahead and fix it. Otherwise, don’t worry about it.
Here is John’s tweet:
Forum discussion at Twitter.