The four ConvertTo-SecureString -AsPlainText calls of Probe-EffectiveAccess.ps1
and Run-MatrixLocalSuite.ps1 get a SuppressMessageAttribute with a
justification, as the controller already has for the same case: the lab
installation password comes from the AutomatedLab lab definition and the
passwords of the probe users are random and exist only in memory.
The header of Test-MatrixCleanup.ps1 says that Repair matches the prefixes of
the kit in the whole domain and on the whole machine, which the security review
pointed out, and that an unresolved S-1-5-21-* member of Performance Log Users
can be a real principal of a trust that is down.
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The second follow-up review found no Blocker and no Major, and four
Minors that are corrected. Test-MatrixCleanup.ps1 and the README say
that every unresolved S-1-5-21-* member of Performance Log Users counts
as an entry of the probe; a Verify with the new script found none on
the two machines of the first lab. The record says that the replay
shows that the module doesn't decide the outcome and that six runs can't
rule out a small effect, which the result bullet and the summary of the
evidence had left out; it lists the first-lab counts among its tables,
names the controller blob of rc7d, says that the first-lab check ran
before the profile and log-group fields existed, counts nine restarts
inside the series, and mentions the first attempt of the cleanup test
that died. The controller comment says "for the baseline and for the
final candidate alike" instead of "whichever version"; no code changed.
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Test-MatrixCleanup.ps1 now also counts and removes the profiles and the
profile folders C:\Users\NtfsProbe* (retried, because a profile that the
last task used stays loaded for a few seconds) and the entries of the
account probe in Performance Log Users. net.exe lists a local user by its
bare name and a deleted domain account by its SID or its cached name, so
the check matches NtfsProbe anywhere in the line or a SID.
Export-CellTimeline.ps1 takes the account of a cell that stopped before its
tests from the snapshot of its fixture, so that the series can include
such a cell, and reports SameNameAsPreviousCell and SameAccountAsPreviousCell
instead of one column that compared names only.
Test-StaleAuthzModel.ps1 computes its grid of lifetimes by index (the
accumulated step lost the grid point 10.25), prints a range as segments,
and prints the range of one lifetime for both tests.
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Test-MatrixCleanup.ps1 now counts and repairs the probe folders
(C:\NtfsProbeRecreation and C:\NtfsProbeModules), the local NtfsProbe*
users with their profiles, and the NtfsProbe* objects of the directory.
The scripts of the matrix default to the client OSWin11E.
Export-CellTimeline.ps1 writes one row for every cell, edition, and
Admin role: the module, the account and its relative ID, the times, and
the three effective-access tests. Test-StaleAuthzModel.ps1 replays such a
timeline against a model of the failures: the fit, a listing of the runs,
the cells of a controller that reuses the account name, and a permutation
test.
The comment in the controller says what the replay showed. The code of
the controller is unchanged.
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The suite runner removes its stage on a machine after it has copied the results
back; after an early stop, the stage stays for the diagnosis. The end-state check
counts the items in the stage folders and the scheduled tasks and standard users
of the kit, and -Mode Repair removes what is left of the stage and the tasks.
Probe-AccountRecreation.ps1 deletes an account and creates it again with the same
name in a loop, logs the user on with Kerberos S4U on the domain controller, the
client, and the file server, and asks Get-NTFSEffectiveAccess of each module under
test. It shows that Windows returns the old SID and groups, whichever version of
the module asks.
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When an account is deleted and created again with the same name, a Kerberos S4U
logon for it keeps returning the SID and the groups of the deleted account for
a while, on the domain controller, the client, and the file server. The matrix
deletes the fixture after each cell and creates it for the next, so the
effective-access tests of the Admin role found no access for the new account in
cells that followed within minutes (Windows Server 2022 cell, candidate and
baseline alike, shown by a probe that creates the accounts in a loop). A new
fixture now gets NtfsLiveSubject and four digits; a fixture that exists keeps
its account.
The end-state check of the matrix also reports leftover scheduled tasks, stage
folders, standard users, and probe accounts, which the review asked for.
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Tests\Lab\Acceptance gets the scripts of Decision 24, which extends the
acceptance of the live tests from one lab to several operating-system builds:
- Deploy-OsMatrixLab.ps1, Add-OsMatrixMachine.ps1, Complete-OsMatrixLab.ps1
and Repair-OsMatrixBoot.ps1 build NtfsSecurityOsMatrixLab with AutomatedLab
(Server 2019, 2022 and 2025 file servers, Windows 11 clients) and repair a
base image whose host-side bcdboot left an empty EFI system partition.
- Test-MatrixReadiness.ps1 and Test-MatrixCleanup.ps1 gate each run and prove
that it left nothing behind (fixture accounts, shares, folders, group
members, orphaned SIDs, profiles); -Mode Repair removes what is left.
- Run-MatrixSequence.ps1 runs the live controller for every cell of the matrix
and stops after an infrastructure failure.
- Run-MatrixLocalSuite.ps1 and Invoke-LocalSuite.ps1 run the module's own
Pester suite on each machine in both editions, elevated and as a basic user,
as scheduled tasks: a process started from a remoting session gets every
privilege enabled, which eight of the tests do not expect.
- Export-MatrixResults.ps1 collates the cells, the skipped tests and the
package hashes into the results table.
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Raimund Andree