![]() ![]() Initializationįirst, the regular core of the application initializes the resources required for the ransomware execution, including creating and setting up the enclave. Let’s take a look at how this is done and how the core of the application interacts with the enclave. The enclave will generate a pair of RSA keys, seal the private key and encrypt the victim’s data inside the enclave using the Intel SGX API. The untrusted area, where the regular core of the application is responsible for the enclave load, file opening and writing operationsĮxtracts of code presented here will be coming from the regular core of the application (main.c) or from the enclave (enclave.c).The enclave, which is in charge of cryptographic operations, such as keys generation. ![]() The ransomware is divided into two parts: In this section, we build out a step-by-step example of a ransomware that uses enclaves for asymmetric encryption. Watch this live attack demo to see how the CrowdStrike Falcon ® platform and the CrowdStrike Falcon Complete ™ managed detection and response team protect against ransomware. In Part 2, we explore a hypothetical step-by-step implementation and outline the limitations of this method. In Part 1, we explained what Intel SGX enclaves are and how they benefit ransomware authors. ![]()
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