dumping-and-rebuilding-a-pe-from-memory

dumping-and-rebuilding-a-pe-from-memory is a skill for Claude Code, Codex from meltedinhex/analyst-ai-pack. It costs 73 tokens per session (731 once invoked), scanned A, original, Apache-2.0.

A procedure for turning a memory dump of a Windows executable into a file that can be opened in a disassembler. A PE file is the standard executable format used by Windows.

In plain words
What is it for?
Use it to inspect a dumped PE, realign its sections, set a known original entry point, and continue rebuilding its imports for analysis. It is intended for an already-unpacked dump and does not execute the sample.
Why use it?
Programs captured from memory often have a layout and entry point that do not match a normal file on disk. This procedure corrects those parts and prepares the file for import reconstruction.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to inspect a dumped PE, realign its sections, set a known original entry point, and continue rebuilding its imports for analysis. It is intended for an already-unpacked dump and does not execute the sample.

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Install with agentmods
npx agentmods add skills/meltedinhex/analyst-ai-pack/dumping-and-rebuilding-a-pe-from-memory
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add meltedinhex/analyst-ai-pack --skill dumping-and-rebuilding-a-pe-from-memory
Clone the repo
git clone --depth 1 https://github.com/meltedinhex/analyst-ai-pack

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dumping-and-rebuilding-a-pe-from-memory

README.md
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<a href="https://agentmods.dev/skills/meltedinhex/analyst-ai-pack/dumping-and-rebuilding-a-pe-from-memory"><img src="https://agentmods.dev/badge/skills/meltedinhex/analyst-ai-pack/dumping-and-rebuilding-a-pe-from-memory.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 731 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00073 $0.00731
Opus 5 $0.00036 $0.00365
Sonnet 5 $0.00015 $0.00146
Haiku 4.5 $0.00007 $0.00073

Measured 11d ago against content hash 1964c9c754ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

dumping-and-rebuilding-a-pe-from-memory scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/analyst.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/dumping-and-rebuilding-a-pe-from-memory/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Dumping and Rebuilding a PE From Memory

When to Use

  • You have a process/region dump of an unpacked or injected PE and need a file that loads in a disassembler.
  • You need to convert virtual (loaded) layout back toward raw layout and fix the entry point.

Do not use this on a still-packed image — unpack to OEP first. This skill operates on an already-captured dump; it does not execute the sample.

Prerequisites

  • A raw PE dump (e.g., from x64dbg Scylla, vaddump) and the OEP if known.

Safety & Handling

  • The dump is live malicious code; store password-protected and never execute it.

Workflow

Step 1: Inspect the dumped headers

python scripts/analyst.py inspect dump.bin

Reports whether section RawAddress/RawSize match VirtualAddress/VirtualSize (memory-aligned dumps have raw==virtual) and the current AddressOfEntryPoint.

Step 2: Realign sections to raw layout

python scripts/analyst.py fix dump.bin --oep 0x1234 -o rebuilt.bin

Rewrites each section's PointerToRawData/SizeOfRawData to its virtual layout (the on-disk-from- memory convention) and sets the entry point to the supplied OEP.

Step 3: Reconstruct imports

The dumped image usually has a destroyed IAT; rebuild it with an import reconstructor (Scylla/ ImpRec) using the OEP, then re-inspect.

Step 4: Verify

Confirm the rebuilt file parses, has a valid entry point, and disassembles.

Validation

  • Section table is internally consistent (no overlaps, within file size).
  • AddressOfEntryPoint points inside an executable section.
  • The rebuilt file is accepted by a PE parser/disassembler.

Pitfalls

  • Forgetting that memory dumps use virtual alignment — raw offsets must be rewritten.
  • Setting an OEP RVA that lies outside any section.
  • Skipping IAT reconstruction, leaving call targets pointing at null/garbage.

References

Read the full file on GitHub · 94 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 94 lines · 73 tokens per session scan A 1964c9c754ff

Subscribe to this mod's changes

dumping-and-rebuilding-a-pe-from-memory is a skill published in the GitHub repository meltedinhex/analyst-ai-pack (22 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 73 tokens to every session and 731 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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