Furthermore, payment may also embolden adversaries to target additional organizations, encourage other criminal actors to engage in the distribution of ransomware, and/or fund illicit activities. Recovery GuidanceĬISA and FBI do not encourage paying the ransom as payment does not guarantee victim files will be recovered. The recovery script documented below automates the process of recreating configuration files. The full list of file extensions encrypted by the malware is: vmdk, vmx, vmxf, vmsd, vmsn, vswp, vmss, nvram, vmem. As a result, it is possible, in some cases, for victims to reconstruct the encrypted configuration files based on the unencrypted flat file. Specifically, the ransomware encrypts configuration files associated with the VMs it does not encrypt flat files. ĮSXiArgs ransomware encrypts certain configuration files on ESXi servers, potentially rendering VMs unusable. The actors are likely targeting end-of-life ESXi servers or ESXi servers that do not have the available ESXi software patches applied. Open-source reporting indicates that malicious actors are exploiting known vulnerabilities in VMware ESXi software to gain access to servers and deploy ESXiArgs ransomware. If malicious actors have compromised your organization with ESXiArgs ransomware, CISA and FBI recommend following the script and guidance provided in this CSA to attempt to recover access to your files. Ensure the ESXi hypervisor is not exposed to the public internet.Harden ESXi hypervisors by disabling the Service Location Protocol (SLP) service, and.
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