It indicates that malicious behavior was detected only during dynamic browser interaction—such as JavaScript execution, redirects, or AJAX calls—rather than in static content. This suggests the domain hides its payload or redirects until a real browser session is established.
Three questions every analyst asks before acting on this signal.
It indicates that malicious behavior was detected only during dynamic browser interaction—such as JavaScript execution, redirects, or AJAX calls—rather than in static content. This suggests the domain hides its payload or redirects until a real browser session is established.
Threat actors often embed payloads that activate only when real browsers trigger specific events or cookies. This technique helps them evade static crawlers and signature-based detections, making such findings highly suspicious in SOC and CTI investigations.
It means the browser established a direct connection to a raw IP address instead of a domain. This is often used to bypass DNS-based detection and is a known tactic in malicious web infrastructure.
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": "browser_interaction",
"name": "Malicious Activity Observed During Browser Interaction",
"group": "http_crawling_history",
"subgroup": "web_behavior_structure",
"direction": "malicious",
"evidence": {
"url_shortener_chain": false,
"auto_refresh_seconds": null,
"direct_ip_link": false,
"browser_interaction_required": true
}
}7 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
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It refers to the automatic forwarding of a user or system request from one domain to another destination. Redirects can …
It refers to the action of accessing a resource using a direct IP address instead of a domain name. Threat actors often …
It refers to a web server or website delivering HTTP or HTTPS content through ports other than the standard 80 (HTTP) an…
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