CyberSecure Specialist

Hypervisors like ESXi continue to become more ubiquitous due to the power and convenience of managing virtual machines rather than physical ones. Unfortunately, that power and convenience also attract threat actors. The compromise of a hypervisor also implies the compromise of every virtual machine housed within. In a single stroke, dozens to hundreds of critical virtual machines could be encrypted and held for ransom. ESXi servers are particularly vulnerable, inciting the recent trend of ransomware…

Any users of GoAnywhere MFT should assume compromise, and remove public-facing internet access to the tool and rotate the master encryption key and any passwords used for access. The security bulletin released by the developer includes a stacktrace that administrators can look for in the logs to determine if the exploit was uses against the system. Additionally, administrators should deploy the security patch as soon as change management allows. Companies should endeavor to always bring…

Ransomware groups are always working to find new targets and develop new strains of ransomware that will increase their target lists and maximize their profits. With lots of companies moving to cloud-based computing, most of it being run on Linux, this shift from Clop is not unexpected. A number of ransomware operations are now targeting vulnerable VMWare ESXi servers, thousands of which have recently transitioned to end-of-life status and are no longer receiving official security…