Malicious code in dolyame-boxy-desktop-bnpl-popup (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (44d48270624de1daefb72838205deed5f5ad8e91d15d34e8b953a15367d02945) On require of the package, _runtime.js selects an OS/arch-specific payload (linux_x64, linux_arm64, darwin, win32), downloads a binary from string-split-obfuscated *.workers.dev mirrors (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS TXT-record fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru that base64-decodes assembled chunks, writes the bytes to /tmp/.cache_<hex> or %TEMP%\dotnet_diag_<hex>.exe, chmods 0755, and spawns the file detached via /bin/sh -c or cmd.exe /c start. Host strings are assembled via array.join() to evade static analysis, and cover-story naming ('.analytics_state', 'dotnet_diag_', 'telemetry' comments) is layered over the dropper. The declared purpose of the package (a BNPL payment popup) does not require importing or executing a fetched native binary. ## Source: ghsa-malware (cf143f6664d3a792cef531065788e7a5792d2f9e0c63a80ad0c97b6804ffba40) 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-popup' npm package version 35.8.4 includes a malicious runtime component (_runtime.js) that selects a payload based on the host OS and architecture. It downloads a binary from obfuscated *.workers.dev domains with a DNS TXT-record fallback to several suspicious Russian domains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). The downloaded payload is base64-decoded, written to a temporary file with a misleading filename, permissioned to be executable, and then launched detached via shell commands. The package uses string assembly and misleading comments to evade static detection. The native binary execution is not justified by the package's stated functionality.
Potential Impact
If installed, this package can execute arbitrary native code on the host system, potentially leading to unauthorized code execution, persistence, data compromise, or further system compromise. The malicious payload is OS and architecture specific, increasing the risk across multiple platforms. The deceptive obfuscation and use of external download domains complicate detection and mitigation.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing or using version 35.8.4 of the 'dolyame-boxy-desktop-bnpl-popup' package. Review and remove this package from existing environments. Monitor for any suspicious activity related to temporary executable files named '.cache_<hex>' or 'dotnet_diag_<hex>.exe' in temporary directories. Since no vendor advisory or patch is available, check for updates from the package maintainers or trusted sources before reinstallation.
Malicious code in dolyame-boxy-desktop-bnpl-popup (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (44d48270624de1daefb72838205deed5f5ad8e91d15d34e8b953a15367d02945) On require of the package, _runtime.js selects an OS/arch-specific payload (linux_x64, linux_arm64, darwin, win32), downloads a binary from string-split-obfuscated *.workers.dev mirrors (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) with a DNS TXT-record fallback under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru that base64-decodes assembled chunks, writes the bytes to /tmp/.cache_<hex> or %TEMP%\dotnet_diag_<hex>.exe, chmods 0755, and spawns the file detached via /bin/sh -c or cmd.exe /c start. Host strings are assembled via array.join() to evade static analysis, and cover-story naming ('.analytics_state', 'dotnet_diag_', 'telemetry' comments) is layered over the dropper. The declared purpose of the package (a BNPL payment popup) does not require importing or executing a fetched native binary. ## Source: ghsa-malware (cf143f6664d3a792cef531065788e7a5792d2f9e0c63a80ad0c97b6804ffba40) 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-popup' npm package version 35.8.4 includes a malicious runtime component (_runtime.js) that selects a payload based on the host OS and architecture. It downloads a binary from obfuscated *.workers.dev domains with a DNS TXT-record fallback to several suspicious Russian domains (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru). The downloaded payload is base64-decoded, written to a temporary file with a misleading filename, permissioned to be executable, and then launched detached via shell commands. The package uses string assembly and misleading comments to evade static detection. The native binary execution is not justified by the package's stated functionality.
Potential Impact
If installed, this package can execute arbitrary native code on the host system, potentially leading to unauthorized code execution, persistence, data compromise, or further system compromise. The malicious payload is OS and architecture specific, increasing the risk across multiple platforms. The deceptive obfuscation and use of external download domains complicate detection and mitigation.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing or using version 35.8.4 of the 'dolyame-boxy-desktop-bnpl-popup' package. Review and remove this package from existing environments. Monitor for any suspicious activity related to temporary executable files named '.cache_<hex>' or 'dotnet_diag_<hex>.exe' in temporary directories. Since no vendor advisory or patch is available, check for updates from the package maintainers or trusted sources before reinstallation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13308
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a738531bf8831d5394f0707
Added to database: 08/05/2026, 18:47:13 UTC
Last enriched: 08/05/2026, 21:17:43 UTC
Last updated: 09/07/2026, 22:23:00 UTC
Views: 20
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