bigops-products-insurance
Bigops products insurance provider for microservice architecture
This report shows the evidence for bigops-products-insurance@35.3.4, 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 benign exported API is a wrapper around automatic import-time remote binary execution. This is concrete malware behavior, not telemetry or a user-invoked optional setup 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, unless telemetry opt-out environment variables are set.
Impact
Arbitrary attacker-supplied native code executes as the importing user's account.
Mechanism
remote binary download, temp-file drop, and detached shell execution
Attack narrative
Normal package import catches and silently loads _ext.js. That module fetches a platform-specific payload from obfuscated rotating hosts, with DNS-TXT delivery as fallback, writes it to a temporary file, makes it executable on Unix, and spawns it detached. A temp marker throttles repeated runs.
AI rationale
The benign exported API is a wrapper around automatic import-time remote binary execution. This is concrete malware behavior, not telemetry or a user-invoked optional setup path.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_*
Network endpoints6
oob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packagesdk.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 during normal package import.
- _ext.js downloads platform binaries over HTTPS or DNS TXT.
- _ext.js writes a hidden temp binary, chmods it, then launches it detached.
- Remote hosts are obfuscated and rotated; no checksum is enforced.
- Marker file suppresses repeat execution for ~6 hours.
Evidence against
- package.json has no lifecycle scripts.
- No AI-agent control-surface behavior found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_ext.jsView file
3const path = require("path");
L4: const https = require("https");
L5: const fs = require("fs");
...
L46: const TTL = 22152;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: if (e || !rr || !rr.length) return r("");
Critical
3Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L3: const path = require("path");
L4: const https = require("https");
L5: const fs = require("fs");
...
L46: const TTL = 22152;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: 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 · L3118
Findings
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 bigops-products-insurance@35.3.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-products-insurance@35.3.4. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.