Threat intelligence · MAL-2026-17240

Malicious code in aseitylab (PyPI)

Published Sep 28, 2026 · catalog updated Oct 25, 2026 · Malicious code in aseitylab

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Open the advisory

Exploitation likelihood is not on this record for MAL-2026-17240. A missing EPSS score is not a low risk. Compare Malicious code in aseitylab with the linked advisory before you change production.

Gaps on this record

The stored product name is a package slug. The name on this page is taken from the title (Malicious code in aseitylab).
No vendor fix or required action is stored. Compare the linked advisory before you change production.
EPSS is missing. A missing score is not a low risk.

Severity: Unknown—
Known exploitation: Not in CISA/VulnCheck KEV
EPSS: Awaiting synchronization with FIRST
Remediation: Not established
Affected products: PyPI aseitylab

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9b47f0f7a0776cad3d4c83604d35a0023a250d2f035e58129233095aa2b110a3) aseitylab/_shimdata.py contains a large base85-encoded, zlib-compressed blob stored as DATA. aseitylab/compat.py defines _ensure_compat(), which base85-decodes and zlib-inflates DATA and passes the result to exec(compile(..., ' ', 'exec')). setup.py imports aseitylab.compat and invokes _ensure_compat() during package build/install, and aseitylab/__init__.py calls the same function on every import, so the decoded payload runs both when the package is installed and whenever it is imported. Execution is gated by environment variables (ASEITYLAB_COMPAT=0, DAS_STAGED=1) that allow the payload to be suppressed in build or test environments. The README advertises a pure-Python task-orchestration toolkit with no runtime dependencies, which does not require a compressed, encoded executable blob shipped as 'compatibility shim data'. MANIFEST.in additionally excludes file names (loader_payload.py, make_armed.py, armed.json, manifest.benign.json) consistent with a build harness that produces separate 'armed' and 'benign' tarballs. The contents of the executed payload are not inspectable from the shipped source; installing or importing the package hands arbitrary code execution to whatever DATA decodes to. ## Source: kam193 (24b99c2059065cbe44f7dac2f1d2878b237c58150c0890baa1856852e76fcb24) During installation, obfuscated code is used to fetch code hidden in an image containing a Python application with a native extension module. This module holds an obfuscated infostealer which collects sensitive data and exfiltrates them to a C2 server retrieved from transaction history in the Polygon blockchain. --- Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-09-donutautosellsrc Reasons (based on the campaign): - infostealer - Downloads and executes a remote executable. - obfuscation - T

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

PyPI aseitylab0.1.0, 0.1.1

How to fix MAL-2026-17240

No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 0.1.0 · 1 other packages on the advisory
Official advisories
- PyPA Advisory Database · osv.dev

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for MAL-2026-17240. A missing EPSS score is not a low risk. Compare Malicious code in aseitylab with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0.1.0, 0.1.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

aseitylab · pypi.org

Timeline

Detection, updates, and resolution for this record.

Sep 28, 2026 · PyPA Advisory Database
Detected
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9b47f0f7a0776cad3d4c83604d35a0023a250d2f035e58129233095aa2b110a3) aseitylab/_shimdata.py contains a large base85-encoded, zlib-compressed blob stored as DATA. aseitylab/compat.py defines _ensure_compat(), which base85-decodes and zlib-inflates DATA and passes the result to exec(compile(..., ' ', 'exec')). setu
Oct 25, 2026 · PyPA Advisory Database
Updated
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9b47f0f7a0776cad3d4c83604d35a0023a250d2f035e58129233095aa2b110a3) aseitylab/_shimdata.py contains a large base85-encoded, zlib-compressed blob stored as DATA. aseitylab/compat.py defines _ensure_compat(), which base85-decodes and zlib-inflates DATA and passes the result to exec(compile(..., ' ', 'exec')). setu

Sources

PyPA Advisory DatabasePackage advisoryMAL-2026-17240
Malicious code in aseitylab (PyPI)
osv.dev

References

Freshness

Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

PyPA Advisory DatabaseOct 26, 2026