Malicious code in checkout-dolyame-logic (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (bf1762450e49c2a25e6765179edb585ba02fbc9375b72098fa0804ffae847ac2) On require of the package, index.js loads./_runtime.js, which assembles mirror hostnames from split string arrays (e.g. 'oob-wor'+'ker.cf99-9'+'b3.work'+'er'+'s.dev', 'oob-worker.cf102-baf.workers.dev', 'oob-worker.cf103-070.workers.dev') and DNS-fallback domains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru) to evade static string matching. The runtime selects an OS-specific asset, downloads an opaque native binary from those hosts (with a DNS TXT-record fallback that reassembles a base64-chunked payload), writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> or dotnet_diag_<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe with.unref(). A second, parallel dropper is shipped in lib/telemetry.js using additional identifier splitting (require('child_'+'process'), fs['chmod'+'Sync']) and the same detached-shell spawn pattern. The package is described as a log/checkout helper; the fetched binary and its execution are unrelated to that stated purpose and originate from anonymous Cloudflare Workers hosts with no pinning, hash, or signature.
Malicious code in checkout-dolyame-logic (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (bf1762450e49c2a25e6765179edb585ba02fbc9375b72098fa0804ffae847ac2) On require of the package, index.js loads./_runtime.js, which assembles mirror hostnames from split string arrays (e.g. 'oob-wor'+'ker.cf99-9'+'b3.work'+'er'+'s.dev', 'oob-worker.cf102-baf.workers.dev', 'oob-worker.cf103-070.workers.dev') and DNS-fallback domains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru) to evade static string matching. The runtime selects an OS-specific asset, downloads an opaque native binary from those hosts (with a DNS TXT-record fallback that reassembles a base64-chunked payload), writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> or dotnet_diag_<hex>.exe), chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe with.unref(). A second, parallel dropper is shipped in lib/telemetry.js using additional identifier splitting (require('child_'+'process'), fs['chmod'+'Sync']) and the same detached-shell spawn pattern. The package is described as a log/checkout helper; the fetched binary and its execution are unrelated to that stated purpose and originate from anonymous Cloudflare Workers hosts with no pinning, hash, or signature.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12562
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735732bf8831d53913d04c
Added to database: 08/05/2026, 15:30:58 UTC
Last updated: 08/05/2026, 15:39:18 UTC
Views: 1
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