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Home/ATT&CK/Software/S0174
MITRE ATT&CK Tool

Responder (S0174)

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Responder is an open source tool used for LLMNR, NBT-NS and MDNS poisoning, with built-in HTTP/SMB/MSSQL/FTP/LDAP rogue authentication server supporting NTLMv1/NTLMv2/LMv2, Extended Security NTLMSSP and Basic HTTP authentication. (Citation: GitHub Responder)

▪Techniques implemented (2)

T1040Network SniffingT1557.001Name Resolution Poisoning and SMB Relay

▪Used by groups (3)

G1003Ember BearG0007APT28G0032Lazarus Group
S0174on MITRE ATT&CK →

MITRE ATT&CK® is a registered trademark of The MITRE Corporation. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.