It indicates that the domain was contacted or interacted with by a known malicious domain during the same session or activity chain. Such connections may occur when a malicious site fetches resources, sends data, or triggers communication through compromised infrastructure.
Three questions every analyst asks before acting on this signal.
It indicates that the domain was contacted or interacted with by a known malicious domain during the same session or activity chain. Such connections may occur when a malicious site fetches resources, sends data, or triggers communication through compromised infrastructure.
Domains that exchange traffic with known malicious infrastructure often serve as secondary enablers or compromised assets within the attack chain. Even if the domain itself does not host malicious content, its inclusion in a malicious session strongly suggests involvement in harmful activity.
Yes. Some domains may seem harmless when crawled or inspected statically, but network telemetry and behavioral analysis reveal that they participate in malicious data exchanges, such as C2 communications or exfiltration attempts.
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": "visited_by_a_malicious_domain",
"name": "Active Association with Malicious Domain",
"group": "relational_intelligence",
"subgroup": "web_relational_infra",
"direction": "malicious",
"evidence": {
"inlink_count": 312,
"malicious_outlink_count": 4,
"visited_by_malicious_count": 2,
"backlink_quality": "mixed"
}
}2 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It refers to outbound links on a webpage that point to malicious or restricted domains. These links are often injected i…
It indicates that the domain receives a large number of backlinks from diverse external sources across the internet. Thi…
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