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Part of a larger attack: 2026-04-process-support published 24 malicious packages. See the full campaign →
Malicious package

timermcpPyPI

Advisory published Updated

timermcp is a confirmed malicious PyPI package (MAL-2026-3231) 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 timermcp (PyPI)

MAL-2026-3231
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
pip uninstall timermcp

What this malware does

During import, the package automatically downloads and executes code that first acts as an infostealer and then starts code acting as a RAT. It connects with a hardcoded C2 server and waits for commands, supporting e.g. executing remote commands, exfiltrating files, recording the screen, executing GUI actions through PyAutoGUI.

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

Campaign: 2026-04-process-support

Reasons (based on the campaign):

  • exfiltration-generic

  • The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

  • rat

  • spyware-like

  • infostealer

  • persistence

  • exfiltration-browser-data

  • exfiltration-crypto

  • files-exfiltration

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

41b76e8769ee9767e6862396ab1fc7e6bc5153ba8b71bb79e5b0c210b98e0c82
a3fb8935c61e214bb5bdfe858c15d8d00fce16ae5a8ee00d88af7c1aa363e656

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for timermcp (version 1.0.0).

  2. If you installed it — respond

    timermcp 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 timermcp 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. timermcp 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

2026-04-process-support

References

Credits

  • Kamil Mańkowski (kam193) · reporter

Detect & block this

O3 blocks timermcp-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

timermcp (PyPI) malicious package — MAL-2026-3231 | O3 Security