There are provided measures for enabling detecting malware. A method includes generating a copy of a first node, configuring a sandbox environment by using the generated copy, executing an electronic file or a URL in the sandbox environment configured with the copy, providing a result of the malware analysis of the electronic file or the URL, identifying the electronic file or the URL as malicious or suspicious on the basis of the provided result, and taking further action for protecting the first node from the electronic file or the URL identified as malicious or suspicious.