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OpenAdvisories
Malicious MAL-2026-3396

ninja-core-optimizer

PyPI package · versions 1.3.3, 1.3.4

Reported May 8, 2026 · Updated May 12, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: kam193 (fbe38f659a9fac5304f648aa594e12123221abd687755378f05b3efe17d6d4c7)
During installation, obfuscated code exfiltrates cryptocurrency wallet data to a hardcoded location

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

Campaign: 2026-05-ninja-core-utils

Reasons (based on the campaign):

- The package overrides the install command in setup.py to execute malicious code during installation.

- obfuscation

- crypto-related

- exfiltration-crypto

- backdoor

Indicators of compromise

Shown defanged and not clickable. Search any indicator to find other packages using it.

URLs

IP addresses