Microsoft has called for cloud developers to be more rigorous with their security practices when creating products in a bid to help them avoid being blacklisted.
Microsoft issued guidance on its TechNet blog, detailing common mistakes and pitfalls cloud developers make regarding security.
The firm highlighted malware as a key area where developers much be vigilant, revealing that it has already detected and blocked one "popular installer" being used to spread links to malicious URLs this year.
"Even if you don't intend to install malware, a security vulnerability could be detected as your product installing malware. If you download executables off the internet, have your software check a digital signature or cryptographic hash, to ensure it has the correct file you intended it to download," read the guidance.
"We have seen one case where a ‘popular installer' had some URLs distributing malware and we had to detect every one of their installers in case it was downloading one of the malware URLs. Make sure your software isn't installed by malware."
Microsoft also called for developers to be proactive, and to sign their software with legitimate, secure keys approved by the firm.
"Digitally sign your software using a method accepted by Microsoft. This is the fastest way to get a good cloud reputation because the reputation of a good file can be distributed to all files signed by the same key. Once you have digitally signed your software, be careful that malware isn't also signed by your key," read the advisory.
"Making sure you protect your key from being stolen by malware authors. Ensuring your development process prevents a parasitic file-infecting virus from being inadvertently signed by your key."
Microsoft's guidance comes just after it announced key changes to its security strategy. Microsoft announced job cuts to its Trustworthy Computing (TwC) cyber-security division as a part of a wider move to make its security engineers work more closely with its product and services teams earlier in September.
For more on cloud computing, visit the Intel IT Center.
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