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 (5fd7cc9fd6247802480f37b02a23faadb37c7fa5aded77358015c0861ab980e7)
Campaign includes a chain of dependencies that finally exfiltrate sensitive environment variables to a hardcoded GitHub repository as exfiltration target, and in specific environments also start a reverse shell. It appears to be targeting specifically one GitHub project, where the front-end package was included in a PR.
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Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-moonbit-locale-compat
Reasons (based on the campaign):
- The malicious code is intentionally included in a dependency of the package
- The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.
- exfiltration-env-variables