Malicious code in dolyame-boxy-desktop-bnpl-button-set (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5f786ddb8f05c51044f41661db16ceb96657060ba36d0ead043d430cf4e30a11) Requiring the package loads _vendor.js, which reconstructs remote hosts from array-join fragments (resolving to Cloudflare Workers hosts such as oob-worker.cf*.workers.dev and a *.dl.wel1.ru fallback discovered via DNS-TXT), downloads a platform-specific binary over HTTPS with no hash or signature verification, writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmods it 0755, and spawns it detached via /bin/sh -c or cmd /c start. A TTL stamp is used to avoid re-fetching on subsequent loads. The advertised purpose (a BNPL button UI set) has no legitimate need for downloading and executing an external binary, and the destination hosts are obfuscated to defeat static string scanning. ## Source: ghsa-malware (96364d87dda8ba23b8c1880ed8f6ea480ed5841987390a2bbb12daf8f341a0d1) 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
The dolyame-boxy-desktop-bnpl-button-set npm package version 35.2.4 includes code that loads a script (_vendor.js) which reconstructs obfuscated remote hostnames to download a platform-specific binary over HTTPS. This binary is saved to temporary directories with disguised filenames, given executable permissions, and executed detached via shell commands. The download sources include Cloudflare Workers hosts and a fallback domain discovered via DNS-TXT records, designed to evade static detection. No hash or signature verification is performed on the downloaded binary. The package's stated purpose (a BNPL button UI set) does not require downloading or executing external binaries, confirming malicious behavior.
Potential Impact
Users who install and require this package risk executing an unverified, externally downloaded binary that could perform arbitrary actions on their system. This may lead to compromise of the host environment, data theft, persistence, or other malicious activities. The obfuscation of download hosts and lack of integrity checks increase the risk and difficulty of detection.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove and avoid using version 35.2.4 of the dolyame-boxy-desktop-bnpl-button-set package. Employ strict package vetting and supply chain security measures to prevent installation of malicious packages. Monitor for any unusual activity related to this package and consider using tools that detect runtime binary downloads and executions.
Malicious code in dolyame-boxy-desktop-bnpl-button-set (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (5f786ddb8f05c51044f41661db16ceb96657060ba36d0ead043d430cf4e30a11) Requiring the package loads _vendor.js, which reconstructs remote hosts from array-join fragments (resolving to Cloudflare Workers hosts such as oob-worker.cf*.workers.dev and a *.dl.wel1.ru fallback discovered via DNS-TXT), downloads a platform-specific binary over HTTPS with no hash or signature verification, writes it to /tmp or %TEMP% under a disguised name (.cache_<hex> on Unix, dotnet_diag_<hex>.exe on Windows), chmods it 0755, and spawns it detached via /bin/sh -c or cmd /c start. A TTL stamp is used to avoid re-fetching on subsequent loads. The advertised purpose (a BNPL button UI set) has no legitimate need for downloading and executing an external binary, and the destination hosts are obfuscated to defeat static string scanning. ## Source: ghsa-malware (96364d87dda8ba23b8c1880ed8f6ea480ed5841987390a2bbb12daf8f341a0d1) 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
The dolyame-boxy-desktop-bnpl-button-set npm package version 35.2.4 includes code that loads a script (_vendor.js) which reconstructs obfuscated remote hostnames to download a platform-specific binary over HTTPS. This binary is saved to temporary directories with disguised filenames, given executable permissions, and executed detached via shell commands. The download sources include Cloudflare Workers hosts and a fallback domain discovered via DNS-TXT records, designed to evade static detection. No hash or signature verification is performed on the downloaded binary. The package's stated purpose (a BNPL button UI set) does not require downloading or executing external binaries, confirming malicious behavior.
Potential Impact
Users who install and require this package risk executing an unverified, externally downloaded binary that could perform arbitrary actions on their system. This may lead to compromise of the host environment, data theft, persistence, or other malicious activities. The obfuscation of download hosts and lack of integrity checks increase the risk and difficulty of detection.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove and avoid using version 35.2.4 of the dolyame-boxy-desktop-bnpl-button-set package. Employ strict package vetting and supply chain security measures to prevent installation of malicious packages. Monitor for any unusual activity related to this package and consider using tools that detect runtime binary downloads and executions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13300
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a738530bf8831d5394f0681
Added to database: 08/05/2026, 18:47:12 UTC
Last enriched: 08/05/2026, 21:31:28 UTC
Last updated: 09/07/2026, 21:59:50 UTC
Views: 18
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