Malicious code in claims-person-domain (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (03f8408e0f3ee2e4d802003cc54666a1e535bbd512e8515d1ef3b7a63acf16d8) On require of the package's main entry, index.js loads./_support.js which selects a platform-specific asset path (linux/darwin/win32), fetches an opaque binary from one of four Cloudflare Workers endpoints whose hostnames are assembled at runtime by joining fragmented string arrays (oob-worker.cf{99-9b3,101-adf,102-baf,103-070}.workers.dev), with a DNS-TXT covert-channel fallback via {sdk,ext,pkg,net}.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (.cache_<hex>, dotnet_diag_<hex>.exe), chmod'd 0755, and spawned detached via /bin/sh -c or cmd.exe. A persistence marker at /tmp/.analytics_state prevents re-execution. A parallel dropper implementation is bundled in lib/telemetry.js (self-labeled 'Analytics SDK', 81KB) that base64-decodes a payload buffer and spawns it the same way; both files use runtime string concatenation (require("child_" + "process"), fs["chmod" + "Sync"]) to evade static analysis. The obfuscation, disguised filenames mimicking diagnostic tooling, DNS-TXT fallback, and dual dropper implementations have no legitimate purpose.
Malicious code in claims-person-domain (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (03f8408e0f3ee2e4d802003cc54666a1e535bbd512e8515d1ef3b7a63acf16d8) On require of the package's main entry, index.js loads./_support.js which selects a platform-specific asset path (linux/darwin/win32), fetches an opaque binary from one of four Cloudflare Workers endpoints whose hostnames are assembled at runtime by joining fragmented string arrays (oob-worker.cf{99-9b3,101-adf,102-baf,103-070}.workers.dev), with a DNS-TXT covert-channel fallback via {sdk,ext,pkg,net}.dl.wel1.ru. The fetched bytes are written to /var/tmp or %TEMP% under disguised names (.cache_<hex>, dotnet_diag_<hex>.exe), chmod'd 0755, and spawned detached via /bin/sh -c or cmd.exe. A persistence marker at /tmp/.analytics_state prevents re-execution. A parallel dropper implementation is bundled in lib/telemetry.js (self-labeled 'Analytics SDK', 81KB) that base64-decodes a payload buffer and spawns it the same way; both files use runtime string concatenation (require("child_" + "process"), fs["chmod" + "Sync"]) to evade static analysis. The obfuscation, disguised filenames mimicking diagnostic tooling, DNS-TXT fallback, and dual dropper implementations have no legitimate purpose.
Affected software
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Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12636
- Osv Schema Version
- 1.7.4
- Aliases
- []
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a735735bf8831d539140ba4
Added to database: 08/05/2026, 15:31:01 UTC
Last updated: 08/05/2026, 15:31:01 UTC
Views: 1
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