It indicates that the domain has started resolving to a new IP address for the first time. This event often marks a change in hosting infrastructure, which can be legitimate (such as server migration) or malicious (e.g., C2 relocation or evasion tactic).
Three questions every analyst asks before acting on this signal.
It indicates that the domain has started resolving to a new IP address for the first time. This event often marks a change in hosting infrastructure, which can be legitimate (such as server migration) or malicious (e.g., C2 relocation or evasion tactic).
Because sudden IP associations may indicate infrastructure shifts in phishing, malware, or C2 networks. Attackers frequently move their domains to fresh IPs to bypass existing detections and maintain operational continuity.
Yes. Routine maintenance, CDN updates, or hosting provider changes can trigger legitimate IP transitions. Analysts should compare the new IP’s reputation, ASN history, and geolocation with previous associations to identify anomalies.
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": "firstly_used_ip",
"name": "Newly-Associated IP",
"group": "dns_history",
"subgroup": "domain_lifecycle",
"direction": "malicious",
"evidence": {
"first_seen_days_ago": 4,
"activation_event": "newly_resolved",
"dormancy_days_before": 0,
"registered_days_ago": 7
}
}4 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It refers to a domain that previously maintained a clean reputation and was considered safe, but has later been repurpos…
It indicates that the domain has recently become active for the first time, either by starting to resolve in DNS or by r…
It indicates that one or more subdomains under a given domain have recently become active or resolvable in DNS. This pat…
It refers to domains where only subdomains are active and the apex (root) domain does not serve any content or DNS respo…
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