[VIRTUALPITA](https://attack.mitre.org/software/S1217) is a passive backdoor with ESXi and Linux vCenter variants capable of command execution, file transfer, and starting and stopping processes. [VIRTUALPITA](https://attack.mitre.org/software/S1217) has been in use since at least 2022 including by [UNC3886](https://attack.mitre.org/groups/G1048) who leveraged malicious vSphere Installation Bundles (VIBs) for install on ESXi hypervisors.(Citation: Google Cloud Threat Intelligence ESXi VIBs 2022)