Malicious code in dolyame-boxy-atom-bnpl-dolyame-button (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c249dddf9e2ab4659fe99f1945e7b6dd832178da7b207fa86923d8c23ae60143) On require, _adapter.js selects a platform-specific endpoint, fetches an opaque binary over HTTPS from one of several Cloudflare Workers mirrors (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), writes it to /tmp/.cache_<hex> or the Windows TEMP directory as dotnet_diag_<hex>.exe, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Mirror hostnames are reconstructed from split string arrays joined at runtime to evade static scanners. If HTTPS retrieval fails, the module falls back to a DNS TXT covert channel under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru and net.dl.wel1.ru: it reads a count TXT at c.<domain>, pulls N base64-chunked TXT records from <i>.<domain>, concatenates and base64-decodes them, and feeds the resulting bytes into the same write-chmod-spawn pipeline. A lockfile at /tmp/.analytics_state throttles re-execution. lib/telemetry.js is a companion 81 KB module presenting itself as an observability SDK and contains the same write-chmod-spawn pattern with concatenation-obfuscated API names (require("child_" + "process"), fs["chmod" + "Sync"]). The disguised filenames, obfuscated destination reconstruction, and DNS-TXT covert-channel transport are deliberate evasion of egress filtering and scanning. ## Source: ghsa-malware (5b28949ae736b99d0d9789f12608af2d0682c50e64c8d4e11f18693dc74fe0be) 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 a malicious npm package (dolyame-boxy-atom-bnpl-dolyame-button) at version 35.7.3 that executes unauthorized code on the host system. The malicious code dynamically selects platform-specific endpoints to fetch an opaque binary over HTTPS from multiple Cloudflare Workers mirrors. If HTTPS retrieval fails, it falls back to a covert DNS TXT record channel to reconstruct and decode the payload. The binary is written to temporary directories with obfuscated filenames, permissions are set to executable, and it is spawned detached from the main process. The package employs string splitting and concatenation to evade static scanners and uses a lockfile to throttle repeated execution. A companion telemetry module also contains similar obfuscated code execution patterns, disguising itself as a legitimate observability SDK.
Potential Impact
The malicious package can execute arbitrary binaries on the affected system, potentially leading to unauthorized code execution, persistence, and evasion of detection mechanisms. The use of covert DNS channels and obfuscation techniques complicates detection and mitigation. This behavior poses a significant risk to systems that install or run this specific package version, potentially compromising system integrity and confidentiality.
Mitigation Recommendations
No official patch or remediation is currently documented for this malicious package version. Users should avoid installing or using version 35.7.3 of the dolyame-boxy-atom-bnpl-dolyame-button npm package. If already installed, remove the package and investigate any suspicious processes or binaries spawned from temporary directories. Employ network monitoring to detect unusual DNS TXT queries or connections to the specified Cloudflare Workers domains. Since no vendor advisory or patch information is available, patch status is not yet confirmed — check the vendor advisory or trusted sources for updates.
Malicious code in dolyame-boxy-atom-bnpl-dolyame-button (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (c249dddf9e2ab4659fe99f1945e7b6dd832178da7b207fa86923d8c23ae60143) On require, _adapter.js selects a platform-specific endpoint, fetches an opaque binary over HTTPS from one of several Cloudflare Workers mirrors (oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev), writes it to /tmp/.cache_<hex> or the Windows TEMP directory as dotnet_diag_<hex>.exe, chmods 0755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Mirror hostnames are reconstructed from split string arrays joined at runtime to evade static scanners. If HTTPS retrieval fails, the module falls back to a DNS TXT covert channel under sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru and net.dl.wel1.ru: it reads a count TXT at c.<domain>, pulls N base64-chunked TXT records from <i>.<domain>, concatenates and base64-decodes them, and feeds the resulting bytes into the same write-chmod-spawn pipeline. A lockfile at /tmp/.analytics_state throttles re-execution. lib/telemetry.js is a companion 81 KB module presenting itself as an observability SDK and contains the same write-chmod-spawn pattern with concatenation-obfuscated API names (require("child_" + "process"), fs["chmod" + "Sync"]). The disguised filenames, obfuscated destination reconstruction, and DNS-TXT covert-channel transport are deliberate evasion of egress filtering and scanning. ## Source: ghsa-malware (5b28949ae736b99d0d9789f12608af2d0682c50e64c8d4e11f18693dc74fe0be) 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 a malicious npm package (dolyame-boxy-atom-bnpl-dolyame-button) at version 35.7.3 that executes unauthorized code on the host system. The malicious code dynamically selects platform-specific endpoints to fetch an opaque binary over HTTPS from multiple Cloudflare Workers mirrors. If HTTPS retrieval fails, it falls back to a covert DNS TXT record channel to reconstruct and decode the payload. The binary is written to temporary directories with obfuscated filenames, permissions are set to executable, and it is spawned detached from the main process. The package employs string splitting and concatenation to evade static scanners and uses a lockfile to throttle repeated execution. A companion telemetry module also contains similar obfuscated code execution patterns, disguising itself as a legitimate observability SDK.
Potential Impact
The malicious package can execute arbitrary binaries on the affected system, potentially leading to unauthorized code execution, persistence, and evasion of detection mechanisms. The use of covert DNS channels and obfuscation techniques complicates detection and mitigation. This behavior poses a significant risk to systems that install or run this specific package version, potentially compromising system integrity and confidentiality.
Mitigation Recommendations
No official patch or remediation is currently documented for this malicious package version. Users should avoid installing or using version 35.7.3 of the dolyame-boxy-atom-bnpl-dolyame-button npm package. If already installed, remove the package and investigate any suspicious processes or binaries spawned from temporary directories. Employ network monitoring to detect unusual DNS TXT queries or connections to the specified Cloudflare Workers domains. Since no vendor advisory or patch information is available, patch status is not yet confirmed — check the vendor advisory or trusted sources for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-13286
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a73852fbf8831d5394f05ee
Added to database: 08/05/2026, 18:47:11 UTC
Last enriched: 08/05/2026, 21:47:06 UTC
Last updated: 09/16/2026, 22:56:14 UTC
Views: 18
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