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Valid SSL Certificate from Recognized CA

It means the domain uses an SSL/TLS certificate issued by a trusted and globally recognized Certificate Authority (CA). This is a strong indicator of legitimacy and proper maintenance, as malicious domains rarely invest in such certificates.

Also surfaces as:
Strongly Validated SSL Certificate
Analyst Q&A

What this signal answers

The questions every analyst asks before acting on this signal.

What it detects01

What does 'Valid SSL Certificate from Recognized CA' mean in SOC or domain analysis?

It means the domain uses an SSL/TLS certificate issued by a trusted and globally recognized Certificate Authority (CA). This is a strong indicator of legitimacy and proper maintenance, as malicious domains rarely invest in such certificates.

Why it matters02

What does 'Strongly Validated SSL Certificate' indicate?

It shows that the certificate underwent additional organizational or extended validation steps. This provides higher assurance that the entity behind the domain is legitimate, reducing the likelihood of misuse for phishing or fraud.

How analysts use it03

Why are valid certificates from recognized issuers important in SOC analysis?

Because threat actors typically prefer free or self-signed certificates for agility and cost. Paid, well-validated certificates are more common in stable, enterprise-managed infrastructures.

Evidence shape

What Valid SSL Certificate from Recognized CA looks like in the response

A realistic shape of the entry the engine appends to the risk_signals array when this signal fires. Evidence keys are subgroup-default; per-signal overrides documented in the API reference.

json
{
  "slug": "ssl_usage",
  "name": "Valid SSL Certificate from Recognized CA",
  "group": "http_crawling_history",
  "subgroup": "ssl_behavior",
  "direction": "safe",
  "evidence": {
    "cert_issued_days_ago": 9,
    "issuer": "letsencrypt",
    "valid_for_days": 90,
    "rotation_count_90d": 3,
    "cert_type": "DV"
  }
}
See in API reference
Siblings

Peers in SSL Behavior

14 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.

Valid SSL Certificate Authentication

It indicates that the domain’s SSL/TLS certificate has successfully passed all certificate chain validation checks. The …

Safe
Critical SSL Certificate Authentication Failure

It means that the SSL/TLS certificate presented by the domain failed critical validation checks. This can occur due to m…

MaliciousCore
Invalid Hostname Validation (CN/SAN Mismatch)

It means the SSL/TLS certificate’s Common Name (CN) or Subject Alternative Name (SAN) does not match the accessed domain…

MaliciousCore
Organization-Validated (OV) SSL Certificate Detected

It means the SSL/TLS certificate of the domain includes verified organizational details that have been authenticated by …

SafeCore
Show 10 more in SSL Behavior

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