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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.
After excluding a file or folder from the Sophos Anti-Virus on-access scanner they are still scanned.
First seen in Sophos Anti-Virus for Windows 2000+ 7.6.21
The file or folder is being accessed via the:
Any file or folder with more than 11 characters in its name will have an MS-DOS compatible short filename/path to maintain backward-compatibility with legacy applications.
You must exclude both the long and short paths for any file or folder with names greater than 11 characters.
To exclude C:\Program Files\Sophos\ ('Program Files' has 12 characters and a space) you must add to the exclusion list:
To exclude C:\aReallyLongFileName.txt ('aReallyLongFileName' has 19 characters) you must add to the exclusion list:
To exclude C:\a file.docx ('a file.docx' has a space) you must add to the exclusion list:
For more information on how short filenames and paths are created see: How Windows Generates 8.3 File Names from Long File Names.
The short filename can also be referred to as the 8.3 filename, short filename or SFN. The long filename can also be referred to as Unicode long filenames or LFN.
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