registry / Remote code execution / damir-cbr-dawdntrnssbf
damir-cbr-dawdntrnssbf
Build and deployment tools
This report shows the evidence for damir-cbr-dawdntrnssbf@35.8.1, 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 performs concealed remote payload retrieval and execution during ordinary import, without a user-invoked setup action. This is concrete malware behavior despite the absence of install hooks.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of the package entrypoint.
Impact
Arbitrary remote code executes with the importing process's permissions.
Mechanism
remote binary download, temporary-file drop, chmod, and detached shell execution
Attack narrative
Requiring index.js imports _polyfill.js, which immediately runs. It fetches a platform-specific payload from rotating worker hosts or assembles it from DNS TXT records, saves it under a disguised temporary filename, makes it executable on Unix, and starts it detached through a shell or cmd.exe. The apparent telemetry module repeats this loader design.
AI rationale
The package performs concealed remote payload retrieval and execution during ordinary import, without a user-invoked setup action. This is concrete malware behavior despite the absence of install hooks.
Evidence
package.jsonindex.js_polyfill.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>Windows temp\analytics_stateWindows temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf103-070.workers.devoob-worker.cf99-9b3.workers.devoob-worker.cf102-baf.workers.devoob-worker.cf101-adf.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.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 _polyfill on every package require.
- _polyfill.js runs its downloader immediately at import.
- _polyfill.js downloads platform binaries over HTTPS or DNS TXT.
- _polyfill.js writes executable payloads to /var/tmp or Windows temp and spawns them detached.
- lib/telemetry.js contains the same download-to-temp-and-execute profiler mechanism.
Evidence against
- package.json has no npm lifecycle hooks.
- No credential-harvesting behavior was confirmed in inspected files.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
5 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L117: const _logger = new Logger(
L118: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L119: );
...
L225: "BUILD_NUMBER",
L226: "GITHUB_ACTIONS",
L227: "GITLAB_CI",
...
L276: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L277: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L2727Trigger-reachable chain: manifest.main -> index.js -> lib/telemetry.js
L27:
L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L117: const _logger = new Logger(
L118: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L119: );
...
L225: "BUILD_NUMBER",
L226: "GITHUB_ACTIONS",
L227: "GITLAB_CI",
...
L276: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L277: device_app_hash: hashString(process.cwd()),
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
lib/telemetry.jsView on unpkg · L27491L492: fork() {
L493: const child = new Scope();
Findings
2 Critical2 High3 Medium4 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capabilitylib/telemetry.js
HighChild Processlib/telemetry.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowScripts Present
LowWeak Cryptolib/telemetry.js
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to damir-cbr-dawdntrnssbf@35.8.1.
The versions list below shows the verdict for each recorded version.
- Avoid installing damir-cbr-dawdntrnssbf@35.8.1. 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.