Malicious code in dolyame-ui-react-version-switch (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (1ee4e207fd01bae956d7fe084377ecea438f81774ea01ca6b02a50c1962c6cca) Package advertises itself as a React UI helper but its index.js unconditionally require()s./_vendor at load time. _vendor.js selects a platform-specific asset path, fetches bytes over HTTPS from a randomly-ordered pool of string-split-obfuscated hosts assembled via.join('') (oob-worker.cf*.workers.dev and sdk/ext/pkg/net.dl.wel1.ru), with a DNS-TXT chunked-base64 fallback to bypass HTTPS filtering. The downloaded bytes are written to /tmp or %TEMP% under disguised names such as dotnet_diag_<hex>.exe or.cache_<hex>, chmod 0755'd on POSIX, and spawned detached via /bin/sh or cmd.exe. No hash verification is performed despite a cover-story comment claiming a SHA-256 integrity check. The package's declared 'interface elements' purpose is a cover story: index.js is a trivial no-op class stub, and the dropper is the only functional behavior.
Malicious code in dolyame-ui-react-version-switch (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (1ee4e207fd01bae956d7fe084377ecea438f81774ea01ca6b02a50c1962c6cca) Package advertises itself as a React UI helper but its index.js unconditionally require()s./_vendor at load time. _vendor.js selects a platform-specific asset path, fetches bytes over HTTPS from a randomly-ordered pool of string-split-obfuscated hosts assembled via.join('') (oob-worker.cf*.workers.dev and sdk/ext/pkg/net.dl.wel1.ru), with a DNS-TXT chunked-base64 fallback to bypass HTTPS filtering. The downloaded bytes are written to /tmp or %TEMP% under disguised names such as dotnet_diag_<hex>.exe or.cache_<hex>, chmod 0755'd on POSIX, and spawned detached via /bin/sh or cmd.exe. No hash verification is performed despite a cover-story comment claiming a SHA-256 integrity check. The package's declared 'interface elements' purpose is a cover story: index.js is a trivial no-op class stub, and the dropper is the only functional behavior.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13179
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a738534bf8831d5394f0a52
Added to database: 08/05/2026, 18:47:16 UTC
Last updated: 08/05/2026, 18:47:16 UTC
Views: 1
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