However Kaseya SaaS agents are directed by Kaseya’s cloud and it appears these customers were not affected by this attack. Kaseya SaaS, like Kaseya VSA, relies on agents running on each computing device. In the case of this attack, the individual agents on each computing device were not exploited, instead the VSA software running on two or more servers was compromised, which then directed the agents to install and run malicious software. Such tools require a software agent with elevated privileges running on each computing device. Kaseya VSA is an IT remote monitoring and management (RMM) solution that is used by IT and network administrators to install and patch software on enterprise computing devices, manage backups, automate other IT processes, and remotely resolve and troubleshoot IT issues. What You Need to Know About On-Premise Kaseya VSA IT/Sec-Ops personnel in all enterprises MUST apply containment controls to these high-risk applications so that attacks like these cannot succeed. Applications that consume data from the outside of an organization pose a risk of becoming hijacked by adversaries. From this costly (and for some, catastrophic) cyber incident, there is yet again a valuable lesson to be learned. This resulted in the encryption for ransom of files on an unknown number of laptops, desktops, and servers across numerous enterprises and customers of managed service providers. Communication will resume when XXX is available and communication from this computer is allowed.How Kaseya VSA Users Could Have Avoided Being Victimsįrom the vendor: “Kaseya’s VSA product has unfortunately been the victim of a sophisticated cyberattack.” Hackers believed to be associated with the Russian threat group known as “REvil” exploited a SQL vulnerability and an authentication bypass to hijack the on-premise deployments of Kaseya VSA. Event ID: 21016 OpsMgr was unable to set up a communications channel to XXX and there are no failover hosts. Check the event log on the server for the presence of 20000 events, indicating that agents which are not approved are attempting to connect. The most likely cause of this error is that the agent is not authorized to communicate with the server, or the server has not received configuration. Event ID: 20070 The OpsMgr Connector connected to XXX, but the connection was closed immediately after authentication occurred. Please verify there is network connectivity, the server is running and has registered it's listening port, and there are no firewalls blocking traffic to the destination. The error code is 10061L(No connection could be made because the target machine actively refused it.).

There are mostly three types of errors: Event ID: 21006 The OpsMgr Connector could not connect to XXX.

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