registry / Remote code execution / ded-aa-common-ded-aa-common-core
ded-aa-common-ded-aa-common-core
common abstractions
This report shows the evidence for ded-aa-common-ded-aa-common-core@35.1.6, the only known version.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThe package’s exported abstraction does not require native payload retrieval or detached execution. Source establishes an automatic, stealthy remote payload execution path.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js.
Impact
Unconsented arbitrary native code execution under the importing process account.
Mechanism
Remote binary download via HTTPS/DNS followed by temp-file execution.
Attack narrative
At import time, index.js loads _ext.js. That module fingerprints platform, creates a repeat marker, fetches a platform payload from obfuscated Worker hosts or reconstructs it from DNS TXT records, writes it to a temporary executable path, grants execute permission on non-Windows systems, and launches it detached through a shell or cmd.exe. This is a direct remote-code-execution chain concealed as telemetry.
AI rationale
The package’s exported abstraction does not require native payload retrieval or detached execution. Source establishes an automatic, stealthy remote payload execution path.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%/analytics_state%TEMP%/dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf102-baf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf101-adf.workers.devsdk.dl.wel1.ruext.dl.wel1.ru
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _ext.js on every package import.
- _ext.js downloads platform-specific payloads from Worker hosts.
- _ext.js falls back to DNS TXT payload retrieval from .ru domains.
- Downloaded bytes are written to temp storage, chmodded, then detached-spawned.
- Errors and output are suppressed, with a temporary marker limiting repeats.
- lib/telemetry.js contains the same configurable download-and-execute primitive.
Evidence against
- package.json has no lifecycle scripts.
- The documented public API is a small abstraction, unrelated to payload execution.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_ext.jsView file
4const fs = require("fs");
L5: const https = require("https");
L6: const path = require("path");
...
L43: const STAMP_TTL = 21225;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
4Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L4: const fs = require("fs");
L5: const https = require("https");
L6: const path = require("path");
...
L43: const STAMP_TTL = 21225;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
_ext.jsView on unpkg · L4Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_ext.js
CriticalTrigger Reachable Dangerous Capability_ext.js
HighChild Process_ext.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to ded-aa-common-ded-aa-common-core@35.1.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing ded-aa-common-ded-aa-common-core@35.1.6. Remove it from direct dependencies and check your lockfile for transitive copies.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
- If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.
Evidence last updated: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.