D3-HDL — Homoglyph Denylisting
D3-HDL: Homoglyph Denylisting
MITRE D3FEND countermeasure
What it does
Blocking DNS queries that are deceptively similar to legitimate domain names.
Attacks this counters
No ATT&CK technique in this corpus maps to this countermeasure. D3FEND may map it to techniques outside the Enterprise matrix, or to ones MITRE has since revoked — absence here is about this corpus, not about the countermeasure.