registry / Remote code execution / bigops-chat-messages
bigops-chat-messages
Pluggable bigops chat messages interface
This report shows the evidence for bigops-chat-messages@19.9.8, 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-aiThis is a concrete, import-triggered remote payload download-and-execute chain unrelated to the stated chat-message interface. Absence of npm lifecycle hooks does not mitigate runtime RCE.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Runtime require/import of index.js
Impact
Unconsented remote code execution under the importing process user.
Mechanism
remote binary download, temporary-file drop, and detached execution
Attack narrative
The main entrypoint silently requires _helpers.js. Its immediately invoked main() fetches a platform-specific binary from hard-coded Workers hosts, or reconstructs one from DNS TXT records, writes it to a temporary directory, marks Unix payloads executable, then launches it detached via /bin/sh or cmd.exe. The marker and misleading telemetry naming obscure this behavior.
AI rationale
This is a concrete, import-triggered remote payload download-and-execute chain unrelated to the stated chat-message interface. Absence of npm lifecycle hooks does not mitigate runtime RCE.
Evidence
package.jsonindex.js_helpers.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf101-adf.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.workers.devtin.dl.well1.sitetina.dl.well1.siteldr.dl.well1.sitewin.dl.well1.site
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _helpers.js on every package load.
- _helpers.js downloads platform binaries from Workers hosts.
- DNS TXT fallback reconstructs a binary payload.
- Downloaded content is written to /var/tmp or Windows Temp.
- Payload is chmodded and launched detached through shell/cmd.
Evidence against
- package.json has no lifecycle scripts.
- Public API in index.js is otherwise minimal.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
3 flagged · loading source_helpers.jsView file
4const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L44: const CACHE_TTL = 20018;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_helpers.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _helpers.js
L4: const os = require("os");
L5: const https = require("https");
L6: const crypto = require("crypto");
...
L44: const CACHE_TTL = 20018;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: 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.
_helpers.jsView on unpkg · L4Findings
2 Critical1 High3 Medium2 Low
CriticalDownload Execute_helpers.js
CriticalTrigger Reachable Dangerous Capability_helpers.js
HighChild Process_helpers.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to bigops-chat-messages@19.9.8.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-chat-messages@19.9.8. 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.