
| Names | Responder SpiderLabs Responder | |
| Category | Tools | |
| Type | Poisoning | |
| Description | 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. | |
| Information | <https://github.com/SpiderLabs/Responder> | |
| MITRE ATT&CK | <https://attack.mitre.org/software/S0174/> | |
| Malpedia | <https://malpedia.caad.fkie.fraunhofer.de/details/py.responder> | |
Last change to this tool card: 28 December 2022
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| Changed | Name | Country | Observed | ||
APT groups | |||||
| Sofacy, APT 28, Fancy Bear, Sednit | 2004-Apr 2025 | ![]() | |||
1 group listed (1 APT, 0 other, 0 unknown)
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