acquiring-disk-image-with-dd-and-dcfldd SKILL.md skillA

This file is byte-identical to the first copy the registry indexed, one of 3 indexed copies. Same content hash, so the same checks give both the same grade.

acquiring-disk-image-with-dd-and-dcfldd from 26zl/cybersec-toolkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add 26zl/cybersec-toolkit/acquiring-disk-image-with-dd-and-dcfldd@v1.0

Pins v1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
26zl/cybersec-toolkit
Path
.claude/skills/acquiring-disk-image-with-dd-and-dcfldd/SKILL.md
Versions recorded
1
Latest version
v1.0, committed Jun 2, 2026
Size
8,515 bytes
Repository stars
87
License
MIT

Create forensically sound bit-for-bit disk images using dd and dcfldd.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Acquiring Disk Image with dd and dcfldd

## When to Use
- When you need to create a forensic copy of a suspect drive for investigation
- During incident response when preserving volatile disk evidence before analysis
- When law enforcement or legal proceedings require a verified bit-for-bit copy
- Before performing any destructive analysis on a storage device
- When acquiring images from physical drives, USB devices, or memory cards

## Prerequisites
- Linux-based forensic workstation (SIFT, Kali, or any Linux distro)
- `dd` (pre-installed on all Linux systems) or `dcfldd` (enhanced forensic version)
- Write-blocker hardware or software write-blocking configured
- Destination drive with sufficient storage (larger than source)
- Root/sudo privileges on the forensic workstation
- SHA-256 or MD5 hashing utilities (`sha256sum`, `md5sum`)

## Workflow

### Step 1: Identify the Target Device and Enable Write Protection

```bash
# List all connected block devices to identify the target
lsblk -o NAME,SIZE,TYPE,MOUNTPOINT,MODEL

# Verify the device details
fdisk -l /dev/sdb

# Enable software write-blocking (if no hardware blocker)
blockdev --setro /dev/sdb

# Verify read-only status
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add 26zl/cybersec-toolkit/acquiring-disk-image-with-dd-and-dcfldd@sha256:1b2246182396593c

The line at the top of this page pins the label v1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bvxnbft6jw3shbax.svg)](https://markdownregistry.com/a/art_bvxnbft6jw3shbax)

0 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Jun 2, 2026.

versioncommittedcommitsizeaudit
v1.0 latest2026-06-02 549fd9b 8,515 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (8515 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

26zl/cybersec-toolkit · 87 stars · license MIT · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bvxnbft6jw3shbax
GET https://markdownregistry.com/api/v1/resolve?ref=26zl/cybersec-toolkit/acquiring-disk-image-with-dd-and-dcfldd
GET https://markdownregistry.com/api/v1/blob/1b2246182396593c69f5644b56216808de861f652d9fbe01cc460823f784e7f5

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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