osinthell
This report shows the evidence for osinthell@1.9.5. 6 of 6 known versions are blocked or flagged. See all versions.
OpenSSF/OSV Malicious Advisory
imported 3mo ago · by OpenSSF/OSVOpenSSF/OSV advisory MAL-2026-11542 confirms this npm version as malicious.
Advisory
MAL-2026-11542
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in osinthell (npm)
Details
The package's only exported function, sorgu(), invokes 26 sibling modules under public/a/b/.../z/ that carry out an immediate, irreversible destructive attack on the caller's Windows host. Observed behaviors include: opening \\.\PhysicalDrive0 and overwriting the MBR with a zeroed 512-byte buffer (h.js); recursive deletion of C:\ and C:\Windows\System32 (c.js, d.js); running `format C: /Q /Y` and `rd /S /Q C:\` (f.js); taskkill of winlogon/csrss/explorer/dwm (e.js); overwriting C:\Windows\System32\drivers\etc\hosts to blackhole google.com, discord.com, github.com, youtube.com, reddit.com, microsoft.com, and windows.com to 0.0.0.0 (g.js); a self-replicating fork bomb spawning cpus*200 detached node processes plus 1000 cmd loops and 500 powershell infinite loops (i.js); repeated 1GB Buffer allocations in an infinite loop (j.js); unbounded intervals for CPU exhaustion (b.js, y.js); download of a JPEG from https://cdn.discordapp.com/attachments/1525228680803123300/1532140349378531328/photo-output.jpg into %TEMP% and forced fullscreen display via start/mshta/powershell WinForms (a.js); and a forced immediate reboot via `shutdown /r /f /t 0` (z.js). The package name and advertised utility purpose are a cover; the exported API is the payload.
Source & flagged code
0 flagged · loading sourceNo flagged code excerpts are attached to this scan.
Findings
1 High
HighOsv Malicious Advisory
Affected versions and remediation
This report applies to osinthell@1.9.5.
The same advisory and Firewall decision cover 4 recorded versions
1.6.9, 1.9.1, 1.9.5, 1.6.6
The versions list below shows the verdict for each recorded version.
- Avoid installing osinthell@1.9.5. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
This report uses published external intelligence. The advisory does not provide a separate source-code analysis for each listed version.
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.