sync: auto-sync from HOWARD-HOME at 2026-07-07 11:45:40

Author: Howard Enos
Machine: HOWARD-HOME
Timestamp: 2026-07-07 11:45:40

.claude/memory/project_edr_rmm_autoisolation_fp.md

@@ -11,6 +11,10 @@ Incident 2026-07-07: **vwp-qbs** (Valley Wide Plastering QuickBooks server) was
 
 **This is SYSTEMIC, not a one-off.** The same rule fired + attempted auto-isolate on **tps-tina** (The Prairie Schooner) the same day — different GuruRMM script, different client. Per-command-line suppression is whack-a-mole. Note: the isolate-host response only actually cuts a host off where its endpoint policy has isolation enabled (vwp-qbs got isolated; tps-tina fired the same alert but `extensionSuccess=None`, stayed online).
 
+**FLEET-WIDE FIX LIVE (2026-07-07):** Datto EDR suppression rule **`3365e79a`** "GuruRMM origin - Exfil-over-HTTP (fleet-wide FP)" — matches Rule Name = Exfiltration Over HTTP Protocol + Grand Parent = `gururmm-agent.exe`, org/loc empty = ALL clients. Suppresses this one rule for any GuruRMM-launched process fleet-wide (present + future scripts); every other rule still fires on RMM-origin. Created in the CONSOLE (by Howard) after the API create path proved unsafe. The two earlier narrow per-command-line rules (`e4dd55bf`, `7ea2a577`) are now redundant subsets — harmless, left in place.
+
+**API FOOTGUN (do NOT create suppressions via `raw POST` on this tenant):** `POST /SuppressionRules` forces `active:true` and auto-creates an EMPTY match-everything version → a live "suppress all" window (I hit this with `7c36b89f`, deleted within ~2 min). `GET`/`PATCH /SuppressionRules/{id}` 400 ("undefined is not valid JSON"); `DELETE /{id}` works. Create suppressions in the CONSOLE until an atomic API create is verified. Details in `.claude/skills/datto-edr/references/api-reference.md`.
+
 **What's deployed (done):**
 - Narrow suppression rule (Datto EDR, id `e4dd55bf`) for VWP's exact script: matches Process Command Line + Grand Parent = `gururmm-agent.exe`. Does NOT blind other PowerShell. API schema for suppression is now in `.claude/skills/datto-edr/references/api-reference.md`.
 - **EDR isolation watcher**: `.claude/scripts/edr-isolation-watch.sh` + `register-edr-watcher.ps1`, registered as Windows Scheduled Task **"ClaudeTools - EDR Isolation Watcher"** on Howard-Home (runs every 10 min, posts new auto-isolations to #dev-alerts — see [[feedback_fire_dev_alerts_for_client_work]]). Plain script, zero tokens. State file `.edr-watch-state.json` (gitignored) dedupes; seeded with the vwp-qbs + tps-tina event ids so it stays silent for the already-triaged ones. Retire when GuruRMM EDR webhook (Feature 6) lands.