Malicious code in dolyame-boxy-independent-bnpl-open-api (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (8b38c4f57c90f57ca8c3a54ebf790e726dcbba0be7a662f3ae2aa706c5521d5b) On require() of the package, index.js loads _helpers.js which immediately invokes start(). start() selects a Windows, Linux, or macOS payload path, downloads an opaque native binary via https.get from one of three hardcoded Cloudflare workers.dev hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS TXT-record fallback under *.dl.well1.site, writes it to /tmp/.cache_<rand> or %TEMP%/dotnet_diag_<rand>.exe, chmods it 0755, and detached-spawns it via /bin/sh -c or cmd /c start /b. Hostnames are assembled by array-join string concatenation and child_process is loaded via require("child_"+"process") to evade static string scanning. The package advertises itself as a BNPL API SDK; the fetched binary is unrelated to that stated purpose and uses cover-story filenames (dotnet_diag,.cache_). A secondary lib/telemetry.js (~81 KB) bundles structurally identical dropper primitives (https fetch, chmod 0755, /bin/sh -c detached spawn, base64 chunk decode) though it is not reached from the current main. ## Source: ghsa-malware (56a3ac626eac65ce7036ca902b5f8660bc5c4ebc6bd62828a0ca85d401156328) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
This threat involves the npm package dolyame-boxy-independent-bnpl-open-api version 20.8.9, which upon require() loads a helper script that immediately downloads a native binary payload from one of three hardcoded Cloudflare workers.dev domains, with a DNS TXT-record fallback. The binary is saved to temporary directories with cover-story filenames (e.g., dotnet_diag, .cache_) and executed detached via shell commands. The package uses string concatenation and dynamic require to evade static detection. Additionally, a secondary telemetry module containing similar dropper code exists but is not currently invoked. The payload is unrelated to the package's advertised BNPL API functionality, indicating malicious intent.
Potential Impact
The malicious package enables remote code execution on the host system by downloading and executing an opaque native binary without user consent. This can lead to unauthorized system compromise, persistence, and potential further malicious activity. The execution is detached and obfuscated to evade detection, increasing the risk of stealthy exploitation.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately remove and avoid using version 20.8.9 of the dolyame-boxy-independent-bnpl-open-api package. Monitor for any unexpected processes or binaries matching the described behavior. Since no vendor advisory or patch is available, users should check for updates or official guidance from the package maintainers or npm registry. Consider using trusted package sources and scanning dependencies for malicious code.
Malicious code in dolyame-boxy-independent-bnpl-open-api (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (8b38c4f57c90f57ca8c3a54ebf790e726dcbba0be7a662f3ae2aa706c5521d5b) On require() of the package, index.js loads _helpers.js which immediately invokes start(). start() selects a Windows, Linux, or macOS payload path, downloads an opaque native binary via https.get from one of three hardcoded Cloudflare workers.dev hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS TXT-record fallback under *.dl.well1.site, writes it to /tmp/.cache_<rand> or %TEMP%/dotnet_diag_<rand>.exe, chmods it 0755, and detached-spawns it via /bin/sh -c or cmd /c start /b. Hostnames are assembled by array-join string concatenation and child_process is loaded via require("child_"+"process") to evade static string scanning. The package advertises itself as a BNPL API SDK; the fetched binary is unrelated to that stated purpose and uses cover-story filenames (dotnet_diag,.cache_). A secondary lib/telemetry.js (~81 KB) bundles structurally identical dropper primitives (https fetch, chmod 0755, /bin/sh -c detached spawn, base64 chunk decode) though it is not reached from the current main. ## Source: ghsa-malware (56a3ac626eac65ce7036ca902b5f8660bc5c4ebc6bd62828a0ca85d401156328) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This threat involves the npm package dolyame-boxy-independent-bnpl-open-api version 20.8.9, which upon require() loads a helper script that immediately downloads a native binary payload from one of three hardcoded Cloudflare workers.dev domains, with a DNS TXT-record fallback. The binary is saved to temporary directories with cover-story filenames (e.g., dotnet_diag, .cache_) and executed detached via shell commands. The package uses string concatenation and dynamic require to evade static detection. Additionally, a secondary telemetry module containing similar dropper code exists but is not currently invoked. The payload is unrelated to the package's advertised BNPL API functionality, indicating malicious intent.
Potential Impact
The malicious package enables remote code execution on the host system by downloading and executing an opaque native binary without user consent. This can lead to unauthorized system compromise, persistence, and potential further malicious activity. The execution is detached and obfuscated to evade detection, increasing the risk of stealthy exploitation.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately remove and avoid using version 20.8.9 of the dolyame-boxy-independent-bnpl-open-api package. Monitor for any unexpected processes or binaries matching the described behavior. Since no vendor advisory or patch is available, users should check for updates or official guidance from the package maintainers or npm registry. Consider using trusted package sources and scanning dependencies for malicious code.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12366
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735745bf8831d539159f62
Added to database: 08/05/2026, 15:31:17 UTC
Last enriched: 08/05/2026, 17:27:02 UTC
Last updated: 09/15/2026, 09:58:10 UTC
Views: 20
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