Malicious code in statist-browser-typed-client-sme.platform.mobile.voip.common.events (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (fb43194ddda04c3dffa5cb6bea02c8bc6edba8623acf172c5da744b2488e13b0) On require, _compat.js selects a platform-specific payload path and downloads an opaque binary from one of four Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev). Origin hostnames are assembled from split-string fragments joined at runtime to hide the destinations from static inspection. The fetched bytes are written to a hidden file staged as a system-artifact lookalike (dotnet_diag_<hex>.exe on Windows,.cache_<hex> on Unix) in /tmp or %TEMP%, chmod 0755, and executed via spawn("/bin/sh", ["-c", <path> + " &"], {detached:true, stdio:"ignore"}).unref() (or the cmd equivalent on Windows). If the HTTPS fetch fails, the loader falls back to a DNS TXT covert channel, querying subdomains under dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site) for base64-encoded payload chunks that are concatenated and executed the same way. The package advertises itself as a domain-event handler; the fetched executable content has no relationship to that stated purpose. ## Source: ghsa-malware (8c296a5b9bfc1ba39942ffe8c574ae28d8ab44305cf97ca0767cf6c5b73a5115) 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 that, upon being required, dynamically selects a platform-specific payload path and downloads an opaque binary from one of four obfuscated Cloudflare Workers hosts. The hostnames are constructed at runtime to evade static detection. The downloaded payload is saved as a hidden file with a system-artifact-like name in temporary directories and executed asynchronously. If the HTTPS fetch fails, the loader uses a DNS TXT record covert channel to retrieve base64-encoded payload chunks from subdomains under dl.well1.site, concatenates them, and executes the resulting binary similarly. The malicious executable bears no relation to the package's stated purpose as a domain-event handler.
Potential Impact
The package enables remote code execution by downloading and running arbitrary binaries on the host system without user consent or awareness. This can lead to full system compromise, persistence, and potentially further malicious activities. The obfuscation techniques used (runtime hostname assembly and fallback to DNS covert channel) complicate detection and mitigation.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove version 20.9.4 of the statist-browser-typed-client-sme.platform.mobile.voip.common.events package from their environments. Avoid installing or using this package until a trusted, clean version is released. Employ supply chain security best practices such as verifying package integrity and source reputation before installation.
Malicious code in statist-browser-typed-client-sme.platform.mobile.voip.common.events (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (fb43194ddda04c3dffa5cb6bea02c8bc6edba8623acf172c5da744b2488e13b0) On require, _compat.js selects a platform-specific payload path and downloads an opaque binary from one of four Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev). Origin hostnames are assembled from split-string fragments joined at runtime to hide the destinations from static inspection. The fetched bytes are written to a hidden file staged as a system-artifact lookalike (dotnet_diag_<hex>.exe on Windows,.cache_<hex> on Unix) in /tmp or %TEMP%, chmod 0755, and executed via spawn("/bin/sh", ["-c", <path> + " &"], {detached:true, stdio:"ignore"}).unref() (or the cmd equivalent on Windows). If the HTTPS fetch fails, the loader falls back to a DNS TXT covert channel, querying subdomains under dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site) for base64-encoded payload chunks that are concatenated and executed the same way. The package advertises itself as a domain-event handler; the fetched executable content has no relationship to that stated purpose. ## Source: ghsa-malware (8c296a5b9bfc1ba39942ffe8c574ae28d8ab44305cf97ca0767cf6c5b73a5115) 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 that, upon being required, dynamically selects a platform-specific payload path and downloads an opaque binary from one of four obfuscated Cloudflare Workers hosts. The hostnames are constructed at runtime to evade static detection. The downloaded payload is saved as a hidden file with a system-artifact-like name in temporary directories and executed asynchronously. If the HTTPS fetch fails, the loader uses a DNS TXT record covert channel to retrieve base64-encoded payload chunks from subdomains under dl.well1.site, concatenates them, and executes the resulting binary similarly. The malicious executable bears no relation to the package's stated purpose as a domain-event handler.
Potential Impact
The package enables remote code execution by downloading and running arbitrary binaries on the host system without user consent or awareness. This can lead to full system compromise, persistence, and potentially further malicious activities. The obfuscation techniques used (runtime hostname assembly and fallback to DNS covert channel) complicate detection and mitigation.
Mitigation Recommendations
No official patch or remediation is currently available. Users should immediately remove version 20.9.4 of the statist-browser-typed-client-sme.platform.mobile.voip.common.events package from their environments. Avoid installing or using this package until a trusted, clean version is released. Employ supply chain security best practices such as verifying package integrity and source reputation before installation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12452
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735745bf8831d539159eef
Added to database: 08/05/2026, 15:31:17 UTC
Last enriched: 08/05/2026, 17:23:21 UTC
Last updated: 09/07/2026, 22:29:32 UTC
Views: 20
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