{"answers":{"affected":"1 open source package ship an affected version, including houdus.","exploited":"There is no known exploitation of MAL-2026-15933 in the wild and no public exploit code.","fix":"Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.","what":"MAL-2026-15933 is a malicious package in houdus, published on 4 Sep 2026."},"fix_prompt":"MAL-2026-15933 is a malicious package: houdus (PyPI). Every version was published to cause harm.\n\nTask:\n1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.\n2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.\n3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.\n4. If the package is not used anywhere, say so and change nothing.\n\nReference: https://insights.sbomify.com/MAL-2026-15933/ (Markdown: https://insights.sbomify.com/MAL-2026-15933/index.md)","id":"MAL-2026-15933","markdown":"https://insights.sbomify.com/MAL-2026-15933/index.md","name":"MAL-2026-15933","record":{"aliases":[],"analysis":null,"analysis_generated_by":null,"assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"The package advertises random-number helpers but its generator.py side-loads houdus/assests/ssd.wav as Python via importlib.util.spec_from_file_location + exec_module the first time any of its RNG APIs (pick_int, select_item, etc.) is called. The.wav file is Python source shipped under a mismatched extension and contains: multi-signal VM/sandbox detection (WMI, CPUID hypervisor bit, MAC/BIOS/registry checks), RAM checks, 30-second sleeps, and a base64-encoded URL decoding to https://lamabdefs-sesaonion-ho.netlify.app/wobble.py. On non-sandbox Windows hosts the loader silently installs pycryptodome, downloads wobble.py into %APPDATA%\\Microsoft\\Windows\\Start Menu\\Programs\\\u003cpython\u003e\\wobble.wav, launches it with pythonw.exe using CREATE_NO_WINDOW, and self-deletes. The Start Menu Programs path and headless pythonw launch provide persistence and stealth. Extension disguise, base64 URL obfuscation, and anti-analysis gating rule out any benign interpretation; nothing in the package's stated RNG purpose requires remote code execution.\n\nDuring import, package loads code disguised as \".wav\" file. It performs extensive fingerprinting against sandboxes, and finally downloads and executes heavily obfuscated code. The remote code tries once more to avoid sandbox execution, establishes persistence via scheduled tasks and executes shellcode. Malicious code targets only Windows.\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\nCampaign: 2026-09-houdus\n\nReasons (based on the campaign):\n\n - obfuscation\n\n - Downloads and executes a remote malicious script.\n\n - The package contains code to detect if it is running in a sandbox environment.\n\n - persistence\n\n - shellcode","ecosystems":["PyPI"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"Malicious code in houdus (PyPI)","id":"MAL-2026-15933","indexable":true,"kev":null,"kind":"malicious","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":[],"last_affected":[],"package":"houdus","purl":"pkg:pypi/houdus","source":"MAL-2026-15933"}],"products":null,"published":"2026-09-04","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"OpenSSF Malicious Packages","prefix":"MAL"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":null,"url":"https://insights.sbomify.com/MAL-2026-15933/"}