Memory_1b (mem/xworm-a) Detected. Any Idea what might be the cause?

Question

Several computers have the alert 'Memory_1b (mem/xworm-a)'. It Says Manual malware cleanup required: 'Memory_1b (mem/xworm-a)' at 'c:\Program Files\Sophos\Sophos UI\Sophos UI.exe'. 
 The following are the details of the alerts. 
 
 Detection type: Behavioral 
 Name Memory_1b 
 Path c:\Windows\System32\cAVS\Intel(R) Audio Service\IntelAudioService.exe 
 Detection ID 0fe0d397ca5f39bf755e44f8368e4b54b8b8b67636f09ec619db28a57fd1e608 
 
 Detection type: Behavioral 
 Name Memory_1b 
 Path c:\Program Files\Sophos\Sophos UI\Sophos UI.exe 
 Detection ID 2980258f52d95a9ff115673e76266d77fd5487cd7721f78b028b65ff879e3b8a 
 
 Detection type: Behavioral 
 Name Memory_1b 
 Path C:\Windows\CCM\SCNotification.exe 
 Detection ID 534607c50f44cd158bd35ffd19a038c1a9a797e912ae970788c57023f236ea90

Maxim-Sophos · Accepted Answer

We were seeing this for a day or two on machines with outdated components of the Sophos Endpoint software. The issue has been resolved, but you are encouraged to install the Azure Code Signing (ACS) patch on affected Windows devices, or upgrade the Operating System to support ACS. Otherwise, you will continue to have outdated Sophos components and not be getting the best protection. 
 See https://support.sophos.com/support/s/article/KBA-000008310?language=en_US for more details.