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"Wanna" ransomware outbreak. Please see this Sophos article sophos.com/kb/126733 for advice on how to protect your organization. Immediate action recommended.
If workstations running Sophos Anti-Virus for Windows cannot determine the management server's IP address from that computer's name, they will be unable to communicate with the server. The same problem can occur with the address of message relay computers.
This will be noted in the RMS Router logs in c:\programdata\sophos\remote management system\3\logs\ that it cannot find server.
This problem may also be mentioned in the Sophos Network Communications Report.
Applies to the following Sophos product(s) and version(s) Sophos Anti-Virus for Windows 2000+
To identify the problem,
If nslookup returns an error, check the TCP/IP setting on the endpoint.
Sophos recommends that Enterprise Console is installed on a computer that has a fixed IP address on the appropriate network adapter. If the management server has a static IP address, the installer will configure all endpoints to use any static IP address, in preference to using the server's name. In this case resolving names to IP addresses is not required.
To convert an existing installation to use fixed IP addresses, the server must be reinstalled, and all endpoints re-protected.
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