Ghidra headless decompile of `Lmx.dll`'s `aaDCT` symbol + the
`LmxProxy.dll` Fire_* event handlers (logs at
`analysis/ghidra/exports/Lmx.dll.aadct-decompile.md` and
`analysis/ghidra/exports/LmxProxy.dll.completion-status-decompile.md`)
settles **R3** and **R4** as "no static byte→status lookup table
exists":
- `Lmx.aaDCT` at `0x10178fc0` is a `SysAllocString(L"Lmx.aaDCT")` into
a global BSTR — a logging category name, not a table.
- `MXSTATUS_PROXY` is a 4-field struct (success/category/detectedBy/
detail), used as the marshalled COM event payload — not a static
array of pre-mapped statuses.
- `Fire_OnDataChange` / `Fire_OnWriteComplete` / `Fire_OperationComplete` /
`Fire_OnBufferedDataChange` (RVAs 0x15f72, 0x1611f, 0x16271, 0x163c0
in `LmxProxy.dll`) receive ALREADY-POPULATED `MXSTATUS_PROXY[]`
arrays — the byte-to-struct synthesis happens upstream in the
proxy's NMX-callback ingestion code, not via a table lookup. The
synthesis is per-event computation from operation context (engine
ids, item handles, retry counters), not a static promotion.
R3/R4 status updated from "indefinitely deferred — no Ghidra table"
to "settled — no table exists; verbatim preservation is the canonical
answer." The .NET reference's `NmxOperationStatusMessage.TryParseInner`
+ the Rust port's `mxaccess-codec/src/operation_status.rs` already
match this canonical behaviour; no code change required.
Reopen R3/R4 only if a context-aware capture surfaces a per-byte
synthesis logic that depends on operation context — at which point
the codec would need access to the originating operation's context,
which is upstream of the bytes themselves.
**R8** marked permanently deferred — implementation already parses
NTLM AV pairs per [MS-NLMP] §2.2.2.1 (including the cross-domain
shapes `MsvAvDnsTreeName` / `MsvAvDnsComputerName` carrying the
trusted-domain DNS suffix), what's missing is the live capture, and
the live capture requires a multi-domain Windows lab not available
on this dev host. Same status pattern as F3 in `design/followups.md`.
Open evidence gaps table updated to reflect:
- Cross-domain NTLM: deferred (R8)
- Ghidra mapping table for completion-only bytes: no table exists
(R3/R4 settled)
- Activate/Suspend transition (wire): partial (F44 + F46), live re-run
pending (F50)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Joseph Doherty
4dfc0cee65