igodwin
e961a76176
Incident response for a suspected compromise of a personal @gmail.com account used for practice business. Written for the consumer-account reality: no Admin console, no Admin SDK, no audit-log export, no vendor phone support — every recovery path is Google's automated self-service flow. Initial vector assumed to be an AiTM credential phishing kit (blob: URI rendering a spoofed sign-in page locally, relaying to an attacker session), with an endpoint infostealer as an unruled-out alternative. Both steal a post-authentication session cookie, so 2FA does not prevent it and a password reset alone does not evict it. That drives the whole ordering: revoke sessions, then OAuth grants, then app passwords, THEN reset the password, then enroll phishing-resistant 2FA, then sweep Gmail persistence. Rationale is inline so it doesn't get optimized away mid-incident. Phases 0-5 with durations and exit criteria: evidence preservation, access triage (live-session branch vs. account recovery), containment, blast radius (registrar first, then financial/vendor/licensing), endpoint investigation (GravityZone history before scanning, policy and exclusion audit, Autoruns/Process Explorer, RMM hunt, UniFi logs), and documentation/handoff. Appendices for decision log and contacts. Google UI paths verified against Google's help docs at time of writing; deep links used over menu wording, with an appendix on their volatility. Kaspersky tooling deliberately excluded (US distribution restrictions). Makes no compliance determination by design — legal calls route to counsel/compliance contact. Placeholders only; work the filled-in copy in the private tier. New sec- prefix for security/IR runbooks. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
89 lines
3.9 KiB
Markdown
89 lines
3.9 KiB
Markdown
# rb — runbooks
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Generic, reusable IT procedures and scripts for MSP field work. Fetched onto
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client workstations during on-site work with short, hand-typeable commands.
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> [!WARNING]
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> **This repository is PUBLIC-READ.** It must never contain client-identifying
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> information — no client names, hostnames, IPs, usernames, credentials, or
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> screenshots. Procedures with placeholders **only**. See
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> [CONTRIBUTING.md](CONTRIBUTING.md) for the sanitization rule.
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> Provided as-is, no warranty. Running any script is at your own risk. Contains
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> no client-identifying data by policy.
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## Using a runbook
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Fetch and read on the target workstation:
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```powershell
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irm https://gitea.ivangodwin.com/ops/rb/raw/branch/main/<file> | more
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```
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Run an executable runbook script directly (scripts live under `scripts/`):
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```powershell
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irm https://gitea.ivangodwin.com/ops/rb/raw/branch/main/scripts/<file>.ps1 | iex
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```
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Scripts prompt for anything client-specific via `Read-Host` — nothing to edit
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before running. See [`scripts/_template.ps1`](scripts/_template.ps1) for the
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convention.
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## Layout & naming
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- **Runbooks** (`.md`) live flat at the repo root with short, hand-typeable
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filenames and light category prefixes.
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- **Scripts** (`.ps1`) live under [`scripts/`](scripts/). `_template.ps1`
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sorts first and is the convention reference, not a runnable runbook.
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- **Meta** (`README.md`, `CONTRIBUTING.md`) stays at the root.
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Runbook prefixes:
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| Prefix | Domain |
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| `win-` | Windows workstation / server |
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| `m365-` | Microsoft 365 / Entra |
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| `od-` | Open Dental |
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| `net-` | Networking |
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| `sec-` | Security / incident response |
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## Placeholder conventions
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Fill these from the private tier (private repo or Bitwarden secure note) at
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run time — never commit filled-in values.
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| Placeholder | Meaning |
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|---|---|
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| `<CLIENT>` | Client / site identifier |
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| `<SERVER>` | Server hostname |
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| `<SHARE>` | Share name |
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| `<SHARE_USER>` | Local account used for share access |
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| `<USER>` | End-user account |
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| `<PASSWORD>` | From password manager — never written to a file |
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## Contents
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| File | Purpose |
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|---|---|
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| [`od-smb-cred.md`](od-smb-cred.md) | Open Dental SMB share — stored-credential fix |
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| [`od-cfg-persist.md`](od-cfg-persist.md) | Open Dental — persist "Do not show this window on startup" (writable FreeDentalConfig.xml) |
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| [`od-scan-duplex.md`](od-scan-duplex.md) | Open Dental — duplex ADF scanner captures only one side (TWAIN, Show TWAIN UI branches) |
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| [`od-db-backup.md`](od-db-backup.md) | Open Dental — rock-solid cold backup of the database + images (stop/copy/start MySQL/MariaDB) |
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| [`od-backup-verify.md`](od-backup-verify.md) | Open Dental — verify a backup by test-restoring into an isolated Hyper-V VM (health checklist) |
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| [`od-backup-schedule.md`](od-backup-schedule.md) | Open Dental — schedule the backup + off-site upload and monitor it (dead-man's-switch heartbeat) |
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| [`sec-google-compromise.md`](sec-google-compromise.md) | Incident response — suspected compromise of a **consumer** Google/Gmail account (AiTM session theft; no Workspace admin console) |
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| [`scripts/cg-disable.ps1`](scripts/cg-disable.ps1) | Disable Credential Guard, then reboot (prompts to confirm) |
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| [`scripts/od-cfg-acl.ps1`](scripts/od-cfg-acl.ps1) | Grant Users Modify on FreeDentalConfig.xml (Option B of od-cfg-persist) |
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| [`scripts/od-db-backup.ps1`](scripts/od-db-backup.ps1) | Cold backup: stop MySQL/MariaDB, copy whole data dir + OpenDentImages, always restart (od-db-backup) |
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| [`scripts/od-backup-check.ps1`](scripts/od-backup-check.ps1) | Read-only backup health check: freshness/completeness/size + heartbeat ping (od-backup-schedule) |
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## Tiers
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- **This repo (public):** generic procedures, placeholders only.
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- **Private tier:** filled-in, client-specific versions — private repo or
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Bitwarden secure notes. Never here.
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This repo also serves as the raw source for Intune remediation scripts and as
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documented-procedures evidence for E&O / cyber insurance.
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