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leeand00
Asked: 2015-04-18 07:30:11 +0800 CST

What is a S-X-X-XX-XXXXXXXXXX-XXXXXXXXXX-XXXXXXXXX-XXXX called in Windows security?

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I copied two trees, a source and a destination, that I copied with robocopy like this:

robocopy /MIR C:\Windows\System32\tasks\ C:\temp\robocopyTasks\out\ 

robocopy /E /Copy:S /IS /IT C:\Windows\System32\tasks\ C:\temp\robocopyTasks\out\

Then I compared the permission using icacls output the permissions on both, and the only difference seems to be that the original files contain a long string of characters which I've seen before; and I know it represents a user or a group in the system but I don't remember what it is called. The strings look like this:

S-X-X-XX-XXXXXXXXXX-XXXXXXXXXX-XXXXXXXXX-XXXX

They can be matched with this regex in VIM: 

/S-\d-\d-\d\{2\}-\d\{10\}-\d\{10\}\-\d\{9\}\-\d\{4\}/
windows-7

1 Answers

  1. Best Answer

    It's a SID, or Security Identifier. If it's showing the string rather than a "friendly name," it sounds like the new server doesn't recognize the account.

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