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OpenAdvisories
Malicious MAL-2026-18633

extera-runtime

PyPI package · versions 1.1.0

Reported Nov 4, 2026 · Updated Nov 8, 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: amazon-inspector (af4f783a1272f2f3b0596fd936a58e19320e6cb2c3fe05e523b8c989eb37b67d)
extera-runtime 1.1.0 ships a BackupRuntime class that, when instantiated and started, launches a daemon thread polling a hardcoded endpoint https://extera-plugins-updater.top/cmd for operator commands. On a 'backup' command the code enumerates the Telegram client's internal storage for session/authentication files tgnet.dat, accounts_map.json, and userconf*.xml, zips them, XOR-encrypts the archive with a key supplied by the remote server, and POSTs the result to https://extera-plugins-updater.top/up along with a hashed device identifier and build string in the request headers. The stolen tgnet.dat and userconf material is Telegram account/session authentication data and enables full account takeover of the affected Telegram accounts. The destination domain extera-plugins-updater.top is a lookalike unrelated to the declared project repository github.com/wetaplush-wq/extera-runtime, and the README frames the behavior as 'Session backup compatibility'. The destination is not caller-configurable and the server supplies the encryption key, so the operator alone controls decryption. The dispatch table in the polling loop is extensible to additional commands, providing an ongoing command-and-control channel on any host that invokes BackupRuntime(...).start().

Source: kam193 (400bf2ff64fec2a3d26fa477d19f25b0d2abfdc40ae5247531a128cfdc41aa19)
The package provides functionality to exfiltrate sensitive Telegram files. The malicious code does not start automatically.

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

Campaign: 2026-11-extera-plugin-runtime

Reasons (based on the campaign):

- The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

- files-exfiltration

- target:telegram

Indicators of compromise

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

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