Malicious code in dolyame-boxy-atom-bnpl-popup (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (26bfa012ebc79b0bf89d9eff7b1b0279bba4df11c76f80f6e81171f67d0dd7e5) On require(), _compat.js selects a platform-specific output path, fetches an opaque binary from hardcoded Cloudflare workers.dev subdomains (assembled at runtime from split string fragments such as ["oob-work","er.cf100-416",".worker","s.dev"].join("")) with a DNS TXT fallback under dl.wel1.ru, writes it to /tmp or %TEMP% under a decoy name (.cache_<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmods it to 0755, and spawns it detached via cp.spawn("/bin/sh",["-c", filePath+" &"], {detached:true}) or spawn("cmd",...). Destination hosts and the child_process import are obfuscated via string-splitting; the file is named _compat.js and gated behind opt-out env vars (DISABLE_TELEMETRY) as cover. A second parallel dropper is shipped in lib/telemetry.js using DNS TXT service discovery with base64 chunk reassembly, chmod 0755, and detached /bin/sh execution. Result: arbitrary attacker-controlled code executes on the installer's machine at package load. ## Source: ghsa-malware (d8f351426cc5b751dc039332982e5e2766e16f2c2bdf2d22410e5fea46058d5c) 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-atom-bnpl-popup npm package version 35.9.3 contains malicious code embedded in _compat.js and lib/telemetry.js. These scripts dynamically assemble URLs to fetch opaque binaries from Cloudflare workers.dev subdomains and a fallback DNS TXT service under dl.wel1.ru. The binaries are saved to temporary directories with decoy filenames, permissions are set to executable, and the binaries are executed detached via shell commands. The code uses obfuscation techniques such as string splitting and environment variable gating (DISABLE_TELEMETRY) to evade detection. This results in arbitrary attacker-controlled code execution on the machine loading the package.
Potential Impact
An attacker can achieve arbitrary code execution on the system of any user who installs and loads this specific version (35.9.3) of the dolyame-boxy-atom-bnpl-popup npm package. This can lead to full system compromise, data theft, or further malware deployment. There is no indication of active exploitation in the wild yet.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing or using version 35.9.3 of dolyame-boxy-atom-bnpl-popup. Consider removing this package from existing environments. Monitor vendor advisories or trusted security sources for updates or fixes. Due to the nature of the malicious code executing at package load, runtime detection may be difficult.
Malicious code in dolyame-boxy-atom-bnpl-popup (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (26bfa012ebc79b0bf89d9eff7b1b0279bba4df11c76f80f6e81171f67d0dd7e5) On require(), _compat.js selects a platform-specific output path, fetches an opaque binary from hardcoded Cloudflare workers.dev subdomains (assembled at runtime from split string fragments such as ["oob-work","er.cf100-416",".worker","s.dev"].join("")) with a DNS TXT fallback under dl.wel1.ru, writes it to /tmp or %TEMP% under a decoy name (.cache_<hex> on POSIX, dotnet_diag_<hex>.exe on Windows), chmods it to 0755, and spawns it detached via cp.spawn("/bin/sh",["-c", filePath+" &"], {detached:true}) or spawn("cmd",...). Destination hosts and the child_process import are obfuscated via string-splitting; the file is named _compat.js and gated behind opt-out env vars (DISABLE_TELEMETRY) as cover. A second parallel dropper is shipped in lib/telemetry.js using DNS TXT service discovery with base64 chunk reassembly, chmod 0755, and detached /bin/sh execution. Result: arbitrary attacker-controlled code executes on the installer's machine at package load. ## Source: ghsa-malware (d8f351426cc5b751dc039332982e5e2766e16f2c2bdf2d22410e5fea46058d5c) 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-atom-bnpl-popup npm package version 35.9.3 contains malicious code embedded in _compat.js and lib/telemetry.js. These scripts dynamically assemble URLs to fetch opaque binaries from Cloudflare workers.dev subdomains and a fallback DNS TXT service under dl.wel1.ru. The binaries are saved to temporary directories with decoy filenames, permissions are set to executable, and the binaries are executed detached via shell commands. The code uses obfuscation techniques such as string splitting and environment variable gating (DISABLE_TELEMETRY) to evade detection. This results in arbitrary attacker-controlled code execution on the machine loading the package.
Potential Impact
An attacker can achieve arbitrary code execution on the system of any user who installs and loads this specific version (35.9.3) of the dolyame-boxy-atom-bnpl-popup npm package. This can lead to full system compromise, data theft, or further malware deployment. There is no indication of active exploitation in the wild yet.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should avoid installing or using version 35.9.3 of dolyame-boxy-atom-bnpl-popup. Consider removing this package from existing environments. Monitor vendor advisories or trusted security sources for updates or fixes. Due to the nature of the malicious code executing at package load, runtime detection may be difficult.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13289
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a73852fbf8831d5394f05f7
Added to database: 08/05/2026, 18:47:11 UTC
Last enriched: 08/05/2026, 21:46:35 UTC
Last updated: 09/07/2026, 22:31:33 UTC
Views: 16
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