MAL-2025-6540

    Dashboard / Malicious Package / MAL-2025-6540

    MAL-2025-6540

    Published: 24 Jun 2025Last Modified: 19 Mar 2026

    Summary: Malicious code in mainx (PyPI)

    Details: Source: kam193 (6a77aad2f42165ec9582f04fffab948f6a1125564e34f4d09c8d089b2708d8d2) While described as educational package to simulate post-exploitation environment, the malware is active and once started, automatically attempts to exfiltrate sensitive data (credentials, cookies, etc.) and places a Discord implant. The remote target is hard coded in the code. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2025-06-mainx Reasons (based on the campaign): - obfuscation - infostealer - files-exfiltration - exfiltration-credentials - exfiltration-browser-data - peristence-autorun - The package contains code to detect if it is running in a sandbox environment.

    References: https://www.sonatype.com/blog/sonatype-uncovers-global-espionage-campaign-in-open-source-ecosystems, https://bad-packages.kam193.eu/pypi/package/mainx

    Affected packages

    Package

    Name: mainx

    Purl: pkg:pypi/mainx

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    0.1
    MAL-2025-6540 | CVE-DB