Which versions of synago are malicious?

The following PyPI versions of synago are flagged malicious: 0.1.1, 0.1.2. Treat any of these as compromised.

How do I remediate synago if I installed it?

Remove synago from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Is synago part of a known attack campaign?

Yes — synago is associated with the 2026-06-compr-woodpecker campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

Can O3 Security detect synago in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking synago and packages like it before any post-install script runs.

Malicious package

synagoPyPI

Malicious code in synago (PyPI) Remove it immediately and rotate any exposed credentials.

MAL-2026-5284

Immediate action

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

pip uninstall synago

What this malware does

Versions 0.1.1, 0.1.2 were compromised.

Compromised packages start an obfuscated infostealer. The infostealer is a heavily obfuscated JavaScript code executed using Bun runtime on Python startup. It collectes all kinds of sensitive data, including API keys, credentials to package repositories, cryptocurrency assets, password manager data. Infostealer actively queries online services to collect additional secrets as well as attempts to gain persistence and spread further by publishing infected packages using collected credentials. Data are exfiltrated likely using Github. The code seems to threaten to wipe the user's data if it detects invalid GitHub tokens. Cleanup should be done with caution.

It seems to be related to the recent Mini Shai Hulud campaign.

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

Campaign: 2026-06-compr-woodpecker

Reasons (based on the campaign):

compromised-package
exfiltration-env-variables
exfiltration-cloud-tokens
exfiltration-credentials
abuses-pth
obfuscation
infostealer
The package contains code to detect if it is running in a sandbox environment.
exfiltration-crypto
files-exfiltration
destructive-actions

Malicious versions

2 flagged

0.1.10.1.2

Indicators of compromise (SHA-256)

bee487bb185457ca9e9d74e0963e23be3e84241a6bcd7d0bd5ca44855dd7d28b

533fa27d8d714f6deff7c7ef649fd0470cedddda7875a237a9d6556dd41be21f

32e54d80f1aaab5e054ae1f4391c0c4cb90da1c621473f498b7f61f319aba409

4d1416aa89571f0126ab0764fb1c1afc949819db86e83e30171781a9cc1add64

Frequently asked questions

No. synago on PyPI has been identified as a malicious package (versions 0.1.1, 0.1.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

2026-06-compr-woodpecker

References

Credits

Kamil Mańkowski (kam193) · reporter

Scan your dependencies

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