Malicious code in delivery-ci-cli (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (25daa792f30733f69d4530266b44c1b6ba9a5f4d11f47cce95b714792a39ca89) On require of delivery-ci-cli, index.js loads _bootstrap.js which downloads a platform-specific native binary from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev), writes it to /var/tmp or %TEMP% under cover-story names such as.cache_<hex>, dotnet_diag_<hex>.exe, and.analytics_state, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe with unref(). No hash or signature verification is performed. If HTTPS mirrors fail, _bootstrap.js falls back to a DNS-TXT covert channel: it queries TXT records at c.<domain> and 0.<domain>..N.<domain> under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, base64-decodes the concatenated response into a buffer, writes it to disk, and executes it. Hostnames and API names are assembled at runtime via array.join to evade static string matching. The package README presents it as a benign 'CI CLI SDK' with empty dependencies, which serves as cover for the dropper behavior.
Malicious code in delivery-ci-cli (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (25daa792f30733f69d4530266b44c1b6ba9a5f4d11f47cce95b714792a39ca89) On require of delivery-ci-cli, index.js loads _bootstrap.js which downloads a platform-specific native binary from string-split-obfuscated Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev), writes it to /var/tmp or %TEMP% under cover-story names such as.cache_<hex>, dotnet_diag_<hex>.exe, and.analytics_state, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe with unref(). No hash or signature verification is performed. If HTTPS mirrors fail, _bootstrap.js falls back to a DNS-TXT covert channel: it queries TXT records at c.<domain> and 0.<domain>..N.<domain> under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru, base64-decodes the concatenated response into a buffer, writes it to disk, and executes it. Hostnames and API names are assembled at runtime via array.join to evade static string matching. The package README presents it as a benign 'CI CLI SDK' with empty dependencies, which serves as cover for the dropper behavior.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13538
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a75f710bf8831d53984faa1
Added to database: 08/07/2026, 15:17:36 UTC
Last updated: 08/07/2026, 15:17:36 UTC
Views: 1
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