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OpenAdvisories
Malicious MAL-2026-11521

psbt-helpers

PyPI package · versions 1.0.0

Reported Aug 4, 2026 · Updated Aug 5, 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 (82a309d768af6a39f95bb4f7c9f5d8548a95f0074613985f49f0513420dae9fa)
The code advertised as a firmware upgrader for hardware wallets in fact downloads an infostealer. The stealer searches the machine for cryptocurrency sensitive data (wallet files, seeds), browser data (passwords, cookies), all kinds of credentials (including tokens, passwords, SSH keys, TOTP seeds etc.), other sensitive files and current clipboard content. Data are exfiltrated, and the stealer configures persistence via scheduled tasks or LaunchAgent. The code deliberatly doesn't start in CI environments and checks if the system looks real.

Continuation of 2026-08-coldcard-helpers campaign. Related packages are used in malicious repository https://github.com/domaup/coldcard-poc

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

Campaign: 2026-08-psbt-utils

Reasons (based on the campaign):

- infostealer

- files-exfiltration

- clipboard-stealing

- exfiltration-ssh-keys

- obfuscation

- crypto-related

- exfiltration-cloud-tokens

- Downloads and executes a remote malicious script.

- exfiltration-browser-data

- exfiltration-crypto

- exfiltration-credentials

- persistence

Indicators of compromise

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

Domains

URLs