It indicates that domains hosted under this ASN have been involved in malware distribution, payload hosting, or command-and-control operations, showing that the ASN is part of active malicious infrastructure.
Three questions every analyst asks before acting on this signal.
It indicates that domains hosted under this ASN have been involved in malware distribution, payload hosting, or command-and-control operations, showing that the ASN is part of active malicious infrastructure.
Repeated malware activity across domains within the same ASN suggests systemic abuse or poor governance of the hosting provider, making it a high-risk environment for SOC operations.
This is a strong malicious indicator. Any new or unknown domain hosted in such an ASN should be treated with heightened suspicion, especially when correlated with malicious DNS or blacklist signals.
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_malware_sources",
"name": "Malicious Infrastructure 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 one or more domains under this ASN have been reported as malicious by commercial or open-source securi…
It indicates that one or more domains hosted under the ASN use top-level domains statistically associated with abuse, su…
It indicates that domains hosted under this ASN exhibit behavioral patterns statistically associated with malicious acti…
It indicates that the ASN belongs to hosting environments statistically associated with higher abuse rates, weak onboard…
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