robase-fallback

Details

**Severity:** Critical

**Affected versions:** `= 2.2.0`

## Source: kam193 (a90a9e6e638fef782e18c99b5ab69341776385c7c7e6000af01a6b0fd2c3b0b6)
During installation package downloads and runs a malicious executable. Likely continuation of 2026-03-rowrap.

The campaign is built over a malicious Roblox API wrapper. The roboat[.]pro (later robase[.]app) domain advertises a wrapper that is either directly malicious (as roboat collected in the campaign 2026-03-rowrap) or uses a malicious dependencies (like roboat-utils). New versions are published simultaneously with malicious dependencies and quickly removed. Another advertisement channel is https://github.com/Addi9000/roboat referencing two active contributors: https://github.com/Addi9000 and https://github.com/RoCruise


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


Campaign: 2026-03-roboat-addition


Reasons (based on the campaign):


 - The package overrides the install command in setup.py to execute malicious code during installation.


 - Downloads and executes a remote executable.


 - The malicious code is intentionally included in a dependency of the package


 - malware


 - clones-real-package

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/robase-fallback/MAL-2026-2562.json))

**References:**
- https://github.com/Addi9000/roboat/commit/331166c8ea3bd080f08fe6d571202e3b47017ed7
- https://bad-packages.kam193.eu/pypi/package/robase-fallback
- https://github.com/Addi9000
- https://github.com/Addi9000/roboat/blob/331166c8ea3bd080f08fe6d571202e3b47017ed7/README.md#L31
- https://github.com/RoCruise
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/robase-fallback/MAL-2026-2562.json
- https://www.roboat.pro
- https://www.virustotal.com/gui/file/48b108261d5de97a42eff81cf1a60a32286f72bf8b5f130959e0daa86b783608

Compromised versions (1)

• = 2.2.0

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.