What does the tcloud-python-test malware do?

This campaign is built from two parts: 1) packages named like time-check-server, snapshot-photo contain an innocent-looking code that sends "date" to a remote server, 2) packages named like alicloud-client are clones of legit aliyun-python-sdk-core package, with a small change in the client.py code, where it imports the time-check-server and calls it, but instead of a date, the credentials to the cloud are exfiltrated. There are also variations with AWS clients Apparently, the campaign started at least 2 years ago with the snapshot-photo package containing the same functionality as the newer time-check-server (see https://github.com/pypi-data/pypi-mirror-238/blob/code/packages/snapshot-phot

Which versions of tcloud-python-test are malicious?

The following PyPI versions of tcloud-python-test are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate tcloud-python-test if I installed it?

tcloud-python-test 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.

I already installed tcloud-python-test — how do I know if it already compromised me?

If tcloud-python-test was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

Is tcloud-python-test part of a known attack campaign?

Yes — tcloud-python-test is associated with the RLMA-2025-02005, RLUA-2025-04811, 2025-02-alicloud-client, RLUA-2026-00804 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find tcloud-python-test across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for tcloud-python-test (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging tcloud-python-test across your stack and pipelines.

Malicious package

tcloud-python-testPyPI

Malicious code in tcloud-python-test (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2025-3006

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

pip uninstall tcloud-python-test

What this malware does

This campaign is built from two parts:

packages named like time-check-server, snapshot-photo contain an innocent-looking code that sends "date" to a remote server,
packages named like alicloud-client are clones of legit aliyun-python-sdk-core package, with a small change in the client.py code, where it imports the time-check-server and calls it, but instead of a date, the credentials to the cloud are exfiltrated. There are also variations with AWS clients

Apparently, the campaign started at least 2 years ago with the snapshot-photo package containing the same functionality as the newer time-check-server (see https://github.com/pypi-data/pypi-mirror-238/blob/code/packages/snapshot-photo/snapshot_photo-0.0.3-py3-none-any.whl/snapshot_photo/date_format.py).

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

Campaign: 2025-02-alicloud-client

Reasons (based on the campaign):

clones-real-package
action-hidden-in-lib-usage
The malicious code is intentionally included in a dependency of the package
exfiltration-cloud-tokens

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

b4be4b1ed6050855e2f9c6b1bfa0a9cd4c34a16211339ae604603d0e6aed6ba1

5852c723e0b065d1baa10c7bf39fcc721dc7670afb0d2b0e6a2b3cdfb2ec75ca

dfd60357d0f2edeef38c986940b03ad4707313ad64a7ff32fa9a7e6140b08f28

221affa8a84428ae21f288ce299d114742d269e7bbcbf223a0aa666327fae2c4

d59dfeaf84ba550b8e71f5efae21f11364439f657c8e1c4d47c57b5f8609ca13

11d9a3e61e62baea7d63856b527d37380e867d50a65ab06d702c843d1ecd3fee

1af6cd0720c9fcaefe80c4432e2496f4dc4a4619e9a830b552a7034eae5dc1bd

Detection & response playbook

Credential / info stealer

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for tcloud-python-test (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging tcloud-python-test across your stack and pipelines.
If you installed it — respond
tcloud-python-test 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.
Did it already run?
If tcloud-python-test was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks tcloud-python-test before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. tcloud-python-test 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

RLMA-2025-02005RLUA-2025-048112025-02-alicloud-clientRLUA-2026-00804

References

Credits

Kamil Mańkowski (kam193)
ReversingLabs · finder

Detect & block this

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

Malware detection Runtime egress monitoring