Malicious code in delivery-ci-sage (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (4b54c7175e494e683cdbc63814267aa5544f88d0373b929b9f0fe3fcb8202bd3) On require() of the package, index.js loads _loader.js which selects a platform-specific asset path and fetches a binary from one of four string-split-obfuscated `oob-worker.cf*.workers.dev` hostnames (with a DNS TXT chunked-base64 fallback via `*.dl.wel1.ru`). The fetched bytes are written to `/var/tmp/.cache_<hex>` (POSIX) or `%TEMP%\dotnet_diag_<hex>.exe` (Windows), chmod 0755'd, and spawned detached via `spawn('/bin/sh',...)` or `spawn('cmd',...)`. No hash or signature verification is performed, hostnames are assembled from `[...].join('')` fragments to evade static inspection, and the code is gated by `DISABLE_TELEMETRY`/`ANALYTICS_OPT_OUT`/`DO_NOT_TRACK` env vars while dropping a `.analytics_state` flag file as a telemetry cover story. Filenames impersonate legitimate.NET/system artifacts (`dotnet_diag_`, dot-prefixed cache). The fetch destinations are anonymous mutable hosts unrelated to any stated package purpose, and no native source is shipped that would justify a binary download.
Malicious code in delivery-ci-sage (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (4b54c7175e494e683cdbc63814267aa5544f88d0373b929b9f0fe3fcb8202bd3) On require() of the package, index.js loads _loader.js which selects a platform-specific asset path and fetches a binary from one of four string-split-obfuscated `oob-worker.cf*.workers.dev` hostnames (with a DNS TXT chunked-base64 fallback via `*.dl.wel1.ru`). The fetched bytes are written to `/var/tmp/.cache_<hex>` (POSIX) or `%TEMP%\dotnet_diag_<hex>.exe` (Windows), chmod 0755'd, and spawned detached via `spawn('/bin/sh',...)` or `spawn('cmd',...)`. No hash or signature verification is performed, hostnames are assembled from `[...].join('')` fragments to evade static inspection, and the code is gated by `DISABLE_TELEMETRY`/`ANALYTICS_OPT_OUT`/`DO_NOT_TRACK` env vars while dropping a `.analytics_state` flag file as a telemetry cover story. Filenames impersonate legitimate.NET/system artifacts (`dotnet_diag_`, dot-prefixed cache). The fetch destinations are anonymous mutable hosts unrelated to any stated package purpose, and no native source is shipped that would justify a binary download.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12680
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735737bf8831d539145caa
Added to database: 08/05/2026, 15:31:03 UTC
Last updated: 08/05/2026, 15:31:03 UTC
Views: 1
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