Is dmm.com safe?

suspiciouslow confidence
37/100

context safety score

A score of 37/100 indicates multiple risk signals were detected. This entity shows patterns commonly associated with malicious intent.

identity
100
behavior
60
content
0
graph
30

9 threat patterns detected

medium

encoded payload

suspicious base64-like blobs detected in page content

high

phishing

1 deceptive links where visible host does not match destination host

high

malicious redirect

External domain dmm-extension.com (not a dmm.com subdomain) loads auto-login.js with a data-encoded obfuscated payload attribute 'DRVESRUMTh1PEkYWV1sLGQIKWxk_'. The script is labeled 'auto-login' and executed synchronously in the <head>, giving it full page access before DOM load. The encoded data attribute may carry configuration or exfiltration parameters for credential harvesting. (location: page.html, line 48)

high

credential harvesting

Script from dmm-extension.com (id='auto-login') is a third-party, non-dmm.com domain loading JavaScript named 'auto-login.js' with a base64-like encoded data attribute. This script has the capability to intercept login form submissions or session cookies, as it executes synchronously in the <head> before any other content loads. (location: page.html, line 48)

medium

obfuscated code

The 'data-encoded' attribute on the dmm-extension.com auto-login script tag contains the value 'DRVESRUMTh1PEkYWV1sLGQIKWxk_', which appears to be a base64url or XOR-encoded payload. The encoding purpose is not disclosed and the value is not a standard versioning hash. (location: page.html, line 48)

medium

malicious redirect

navismithapis-cdn.com (not a dmm.com subdomain) serves 10+ critical JavaScript files including pc-tablet-login.js, tracking.js, and exchange-link-rewriter.js. The 'exchange-link-rewriter' script in particular can silently rewrite outbound links to redirect users to attacker-controlled destinations. Supply-chain compromise of this CDN would affect all navigation on the page. (location: page.html, lines 52-95)

medium

brand impersonation

p-smith.com (a non-dmm.com external domain) serves all brand assets for DMM.com including the site logo, favicon, OGP sharing images, Apple touch icon, and all service icons. These assets are used to construct DMM's visual identity. If p-smith.com is attacker-controlled or compromised, it can swap brand imagery to impersonate or defame DMM or redirect users via image-based attacks. (location: page.html, lines 17, 24, 37, 40, 43, 683 (and throughout))

low

hidden content

CSS rule '.top-login { display: none; }' hides a login UI element from visual display. While this may be intentional (login state toggled by JS), it could be used to hide a secondary login form that captures credentials invisibly. (location: page.html, lines 53-55)

low

hidden content

Anonymous CloudFront URL (d2ezz24t9nm0vu.cloudfront.net) loads a script asynchronously with no id, no version parameter, and no identifiable owner. The lack of any identifying attributes makes this script's purpose opaque and unauditable. (location: page.html, line 123)

API

curl https://api.brin.sh/domain/dmm.com

FAQ: how to interpret this assessment

Common questions teams ask before deciding whether to use this domain in agent workflows.

Is dmm.com safe for AI agents to use?

dmm.com currently scores 37/100 with a suspicious verdict and low confidence. The goal is to protect agents from high-risk context before they act on it. Treat this as a decision signal: higher scores suggest lower observed risk, while lower scores mean you should add review or block this domain.

How should I interpret the score and verdict?

Use the score as a policy threshold: 80–100 is safe, 50–79 is caution, 20–49 is suspicious, and 0–19 is dangerous. Teams often auto-allow safe, require human review for caution/suspicious, and block dangerous.

How does brin compute this domain score?

brin evaluates four dimensions: identity (source trust), behavior (runtime patterns), content (malicious instructions), and graph (relationship risk). Analysis runs in tiers: static signals, deterministic pattern checks, then AI semantic analysis when needed.

What do identity, behavior, content, and graph mean for this domain?

Identity checks source trust, behavior checks unusual runtime patterns, content checks for malicious instructions, and graph checks risky relationships to other entities. Looking at sub-scores helps you understand why an entity passed or failed.

Why does brin scan packages, repos, skills, MCP servers, pages, and commits?

brin performs risk assessments on external context before it reaches an AI agent. It scores that context for threats like prompt injection, hijacking, credential harvesting, and supply chain attacks, so teams can decide whether to block, review, or proceed safely.

Can I rely on a safe verdict as a full security guarantee?

No. A safe verdict means no significant risk signals were detected in this scan. It is not a formal guarantee; assessments are automated and point-in-time, so combine scores with your own controls and periodic re-checks.

When should I re-check before using an entity?

Re-check before high-impact actions such as installs, upgrades, connecting MCP servers, executing remote code, or granting secrets. Use the API in CI or runtime gates so decisions are based on the latest scan.

Learn more in threat detection docs, how scoring works, and the API overview.

Last Scanned

March 4, 2026

Verdict Scale

safe80–100
caution50–79
suspicious20–49
dangerous0–19

Disclaimer

Assessments are automated and may contain errors. Findings are risk indicators, not confirmed threats. This is a point-in-time assessment; security posture can change.

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