The following report lists domain users and the computer names on which the accounts themselves or the AD group they are direct member of is member in a local administrator group.
Select Distinct Top 1000000 tblADusers.Username,
tblADusers.Userdomain,
tblAssets.AssetID,
tblAssets.AssetName
From tblADusers
Left Join (Select tblUsersInGroup.Username,
tblUsersInGroup.Domainname,
tblUsersInGroup.AssetID
From tblUsersInGroup
Where tblUsersInGroup.Admingroup = 1) tUsersInGroupAdmin
On tblADusers.Username = tUsersInGroupAdmin.Username And
tblADusers.Userdomain = tUsersInGroupAdmin.Domainname
Left Join (Select tblUsersInGroup.AssetID,
tblADMembership.ChildAdObjectID
From tblADMembership
Inner Join tblADGroups On tblADMembership.ParentAdObjectID =
tblADGroups.ADObjectID
Inner Join tblUsersInGroup On tblUsersInGroup.Username = tblADGroups.Name
Where tblUsersInGroup.Admingroup = 1) tADgroupAdmin
On tADgroupAdmin.ChildAdObjectID = tblADusers.ADObjectID
Left Join tblAssets On tblAssets.AssetID = tUsersInGroupAdmin.AssetID Or
tblAssets.AssetID = tADgroupAdmin.AssetID
Left Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
Order By tblADusers.Username,
tblADusers.Userdomain,
tblAssets.AssetName,
tblAssets.AssetID