It indicates that the IP was listed on blacklist feeds very shortly after the IP block or infrastructure was registered or allocated, suggesting immediate malicious use following deployment.
Three questions every analyst asks before acting on this signal.
It indicates that the IP was listed on blacklist feeds very shortly after the IP block or infrastructure was registered or allocated, suggesting immediate malicious use following deployment.
It means the IP began generating abuse almost immediately after becoming active, leaving little or no benign operational period between allocation and blacklist appearance.
This pattern is a strong signal of disposable or pre-planned malicious infrastructure, such as IP blocks acquired specifically for abuse, freshly activated botnet nodes, or short-lived attack infrastructure designed to operate immediately after registration.
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": "ip_blacklist_fast_emergence",
"name": "Fast Emerging Blacklist IP",
"group": "threat_intelligence_feed",
"subgroup": "ip_blacklist_reputation",
"direction": "malicious",
"evidence": {
"blacklist_count": 7,
"listing_sources": [
"spamhaus",
"abuseipdb",
"uribl"
],
"first_listed_days_ago": 3,
"last_listed_days_ago": 0
}
}3 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
It means the IP has appeared in one or more threat intelligence blacklist datasets, indicating that it has been associat…
It means the IP address appears in at least one threat intelligence blacklist, indicating it has been associated with su…
It means the IP matches several independent blacklist groups simultaneously, such as spam, malware hosting, scanning, bo…
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