What it detects01
What does 'Favicon Domain Malware (Security Vendors)' indicate?
It indicates that one or more reputable security vendors have classified the favicon host domain as associated with malware activity.
Favicon Domain Malware (Security Vendors)
It indicates that one or more reputable security vendors have classified the favicon host domain as associated with malware activity.
Analyst Q&A
What this signal answers
The questions every analyst asks before acting on this signal.
Why it matters02
Why is vendor-based detection considered strong evidence?
Security vendor detections are typically based on multi-source intelligence, behavioral analysis, and historical validation, making them higher-confidence indicators compared to heuristic signals.
How analysts use it03
How should analysts act on this label?
Treat it as high-confidence malicious evidence. It should strongly influence scoring, prioritization, and automated response decisions unless explicitly overridden by verified false-positive context.
Often paired with:block_domain
Evidence shape
What Favicon Domain Malware (Security Vendors) looks like in the response
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.
json
{
"slug": "favicon_domain_security_vendors_malware",
"name": "Favicon Domain Malware (Security Vendors)",
"group": "http_crawling_history",
"subgroup": "favicon_behaviour",
"direction": "malicious",
"evidence": {
"favicon_hash": "-1293291467",
"unique_hash_count_90d": 3,
"favicon_domain": "cdn-login-assets[.]top",
"hosting_type": "third_party",
"service_match": false
}
}Siblings
Peers in Favicon Behavior
16 other signals share the same subgroup. They detect related behaviors and often co-fire on the same IOC.
Favicon Domain Malware Source
It indicates that the domain hosting the favicon has been directly observed serving malware payloads, exploit code, or m…
MaliciousCore
Favicon Domain Low Popularity
It indicates that the domain hosting the favicon has very low observed traffic, reputation, or backlink presence, sugges…
Malicious
Favicon Domain Newly Registered
It indicates that the domain hosting the favicon was registered very recently relative to the observation time, meaning …
Malicious
Favicon Domain Short Time Up and Running
It indicates that the favicon host domain has been observed active for only a short operational window, with limited con…
Malicious
In the wild
See Favicon Domain Malware (Security Vendors) fire on real IOCs
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