Remote user IUST_DERT & IUSR_DER logons

Have a 2008R2 remote server running Citrix and seeing disconnected logons with the accounts above. I understand that IUSR accounts are usually for anonymous accounts and was looking to find them, disable their access and see if would impact the rest of the users but cant find those accounts as of yet.  Do have a webserver and several app servers that use IIS. Suggestions??
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bcp_cnsllcAuthor Commented:
Just as an FYI, I have done AD searches for those user logons and no returns listed.
Brian MurphyIT ArchitectCommented:
Citrix XenApp on 2008R2 does not use Windows IIS server Anonymous accounts.

Those are local only accounts when you enable IIS 7.0 or 7.5 on 2008 R2.

The Citrix installation will install anonymous accounts on the local server in the Local Users container of Computer Management.

Those are no longer used to my knowledge.  Most everyone delete the accounts and that stopped with 7.X.

If your server is a Domain Member (Active Directory) then you would see standard issue AD Domain Account ID's.

If you see anything connected using IIS accounts or anything anonymous you might have a much larger problem.

Defeats the purpose of having Citrix unless you have it out on the Internet hosting notepad and using it as a Honeypot.

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