MAL-2026-1290 Malicious code in remjsonparse (PyPI)
- Package
- remjsonparse
- Registry
- PyPI
What is MAL-2026-1290?
MAL-2026-1290 is a malicious package in remjsonparse, published on 9 Mar 2026.
Official description
During import, package starts advanced compromise actions: exfiltrates AWS and git credentials, commands history, security tools in use. After that, the code waits for further commands from C2. The code is also prepared to configure persistence through autostart keys, crontabs or Linux services, as well as to configure new SSH credentials for remote access.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-remjsonparse
Reasons (based on the campaign):
The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.
typosquatting
peristence-autorun
exfiltration-generic
exfiltration-credentials
What should I do about MAL-2026-1290?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.