How to Scan an Azure Blob for Viruses in Java
When storing valuable content in the cloud, the risk of virus infection is steadily climbing, and as a direct result, the need for fast and accurate virus scanning/identification is growing.
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Cloud storage is becoming increasingly popular with businesses and individual users alike; unfortunately, this popularity means that the possibility of a cyberattack on our content is increasing as well. When businesses utilize cloud storage, and a file is infected, it can quickly spread to other applications in the system, and possibly end up being downloaded by a user, causing even more damage.
So the question is, how do we protect our valuable content from these ever-evolving threats? Fortunately, there’s an answer to that question – below we explore a free solution for Java that leverages a continuously updated database of virus signatures to scan your Azure Blob content for multiple threats. Azure Blob is Microsoft’s cloud storage option, and is widely used due to the scalability and security it offers for cloud-native workloads, archives, data lakes, and high-performance computing.
Starting off, we will install the library by adding the Maven repository:
Then, we will add the dependency:
Now, it’s time to perform the virus scan on the Azure Blob. The scanning system provides a swift response, which enables the user to avoid any unnecessary and potentially detrimental waiting.
At the top of our controller we must add these imports:
Next, in order to ensure the function runs smoothly, we need to identify the following parameters:
- API Key; retrieve a free forever API key from the Cloudmersive website that can scan 800 files/month.
- Connection string for the Azure Blob storage account; you can get this from the Access Keys tab of the Storage Account blade in the Azure Portal.
- Name of the Blob container within the Azure Blob storage account.
- Path to the blob within the container, such as ‘hello.pdf’ or ‘/folder/subfolder/world.pdf’.
Lastly, we enter the following code into our controller:
And there you have it! This will instantly return a result indicating if your Azure Blob is in the clear. If the scan reveals that a threat has been found, it will also indicate the virus name, allowing us to take immediate action against it.
While we know that cyberattacks will always be a possibility, our cloud storage can rest easier knowing that there are solutions available to protect our content, our business, and our users.
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