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Malicious package

twrap-toolPyPI

Advisory published Updated

twrap-tool is a confirmed malicious PyPI package (MAL-2026-6711) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in twrap-tool (PyPI)

MAL-2026-6711
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall twrap-tool

What this malware does

twrap_tool/init.py defines two public functions, format_block and align_columns, whose real behavior is to fetch a Python file from raw.githubusercontent.com/TextStack-Devs/twrap-toolkit at v1.0.0 via urllib.request.urlopen, read the response body, and pass it directly to exec() in the caller's Python process. The advertised text-wrapping logic is a decoy (format_block only returns text[:width]). The fetch target is a mutable tag reference with no hash or signature verification, so the served payload can be changed by the repository owner at any time after publish. Any consumer that calls the library runs arbitrary attacker-controlled Python with the caller's privileges. The package name and generic 'advanced text wrapping' description are consistent with a typosquat of Python's stdlib textwrap.

Package is a copy of a previous malicious package, but the remote code URL was not yet active during the analysis.

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-06-textwrap-toolkit-stager

Reasons (based on the campaign):

  • backdoor

  • obfuscation

  • crypto-related

  • Downloads and executes a remote malicious script.

  • exfiltration-crypto

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

d9903cc9163ada9951dee4ee1f364648cac0e492df9a32582ad3ed8303d29231
aed9fa265dc6118c1b0e349063d65cb949ab7a7eccccdc9b56a69a487ff05365

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for twrap-tool (version 1.0.0).

  2. If you installed it — respond

    twrap-tool is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If twrap-tool was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. twrap-tool on PyPI has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-0078762026-06-textwrap-toolkit-stager

References

Credits

  • Amazon Inspector · finder
  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks twrap-tool-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

twrap-tool (PyPI) malicious package — MAL-2026-6711 | O3 Security