This release is a pre-release and may not be stable for production use.
Speakeasy
Speakeasy is a Windows malware emulation framework that executes binaries, drivers, and shellcode in a modeled Windows runtime instead of a full VM. It emulates APIs, process/thread behavior, filesystem, registry, and network activity so samples can keep moving through realistic execution paths. You can run it from the speakeasy CLI for fast triage or embed it as a Python library and consume structured JSON reports.
Background context: Mandiant's overview post.
Quick start
Install from PyPI:
python3 -m pip install speakeasy-emulator
Run a sample and inspect high-level report fields (replace sample.dll with your target):
speakeasy -t sample.dll --no-mp -o report.json 2>/dev/null
jq '{sha256, arch, filetype, entry_points: (.entry_points | length)}' report.json
{
"sha256": "30ec092d122a90441a2560f6778ef8233c98079cd34b7633f7bbc2874c8d7a45",
"arch": "x86",
"filetype": "dll",
"entry_points": 3
}
Executable proof for this snippet: doc/readme-quickstart-showboat.md.
Documentation map
Start here
CLI usage
- CLI reference
- CLI analysis recipes
- CLI environment overrides
- CLI execution controls
- CLI help snapshot (showboat)
Reports, configuration, and runtime behavior
Debugging and extension
- GDB debugging reference
- GDB sessions (showboat)
- Mounting host files with
--volume - Adding API handlers
- Examples directory
- Speakeasy 2 walkthrough outline
Questions and help
Start with doc/help.md.
If you still need help, open an issue at github.com/mandiant/speakeasy/issues.
2 maintainers
Release files for speakeasy-emulator 2.0.0b8
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| speakeasy_emulator-2.0.0b8.tar.gz | 1.1 MB | Details |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| speakeasy_emulator-2.0.0b8-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 2.1 MB
Release files / speakeasy_emulator-2.0.0b8.tar.gz
| Download URL | speakeasy_emulator-2.0.0b8.tar.gz |
|---|---|
| Size | 1.1 MB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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BLAKE2b-256 checksum How to use checksums |
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Yes |
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twine/6.1.0 CPython/3.13.7
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Transparency logRelease files / speakeasy_emulator-2.0.0b8-py3-none-any.whl
| Download URL | speakeasy_emulator-2.0.0b8-py3-none-any.whl |
|---|---|
| Size | 1.1 MB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
252fccd165c9e2aaf4fc68593942fa46c895c138741cd8edb45ba65f37ac4b6b
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BLAKE2b-256 checksum How to use checksums |
421f958a46b4bcb59bf450948718a0afc03bdf6cbc49f09201bd1d8b8f599f38
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.7
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Sep 15, 2026.
Transparency log
