It indicates that one or more domains hosted under the ASN use top-level domains statistically associated with abuse, such as phishing, spam, or throwaway malicious operations.
Three questions every analyst asks before acting on this signal.
It indicates that one or more domains hosted under the ASN use top-level domains statistically associated with abuse, such as phishing, spam, or throwaway malicious operations.
Specific TLD information—such as the exact TLD, risk rating, or whether it belongs to a high-risk zone—is provided in evidence details rather than separate sublabels.
Suspicious TLD usage is a weak-to-moderate malicious signal. On its own it does not confirm abuse, but when combined with other risky ASN or domain behaviors, it strengthens the case for malicious infrastructure classification.
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.
{
"slug": "asn_domain_suspicious_tld",
"name": "High-Risk TLD Usage Observed in ASN",
"group": "dns_history",
"subgroup": "asn_infrastructure_profile",
"direction": "malicious",
"evidence": {
"asn": "AS13335",
"asn_org": "Cloudflare, Inc.",
"asn_allocation_year": 2010,
"asn_geo_risk": "low",
"hosted_domain_count": 18420315
}
}13 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It indicates that domains hosted under this ASN have been involved in malware distribution, payload hosting, or command-…
It indicates that domains hosted under this ASN exhibit behavioral patterns statistically associated with malicious acti…
It indicates that one or more domains under this ASN have been reported as malicious by commercial or open-source securi…
It indicates that the ASN belongs to hosting environments statistically associated with higher abuse rates, weak onboard…
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