Hydra
E192900
Hydra is a widely used network login cracker designed to perform fast, automated brute-force attacks against numerous protocols and services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Hydra canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1717784 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hydra Context triple: [Kali Linux, includesTool, Hydra]
-
A.
Hydra
Hydra is a clandestine, authoritarian terrorist organization in the Marvel universe known for its infiltration of governments and S.H.I.E.L.D. and its recurring clashes with heroes like Captain America.
-
B.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
-
C.
Hydra
Hydra is one of Pluto’s small outer moons, discovered in 2005 and named after the many-headed serpent from Greek mythology.
-
D.
LernaeanHydra
The Lernaean Hydra is a many-headed serpent-like monster from Greek mythology, famed for its regenerative heads and its defeat as one of Heracles’ Twelve Labors.
-
E.
Dictys
Dictys is a fisherman and brother of King Polydectes in Greek mythology who discovers and shelters Perseus and his mother Danaë after they wash ashore.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Hydra Target entity description: Hydra is a widely used network login cracker designed to perform fast, automated brute-force attacks against numerous protocols and services.
-
A.
Hydra
Hydra is a clandestine, authoritarian terrorist organization in the Marvel universe known for its infiltration of governments and S.H.I.E.L.D. and its recurring clashes with heroes like Captain America.
-
B.
Hydra
Hydra is a Greek island in the Saronic Gulf known for its picturesque harbor, preserved stone architecture, and ban on motor vehicles.
-
C.
Hydra
Hydra is one of Pluto’s small outer moons, discovered in 2005 and named after the many-headed serpent from Greek mythology.
-
D.
LernaeanHydra
The Lernaean Hydra is a many-headed serpent-like monster from Greek mythology, famed for its regenerative heads and its defeat as one of Heracles’ Twelve Labors.
-
E.
Dictys
Dictys is a fisherman and brother of King Polydectes in Greek mythology who discovers and shelters Perseus and his mother Danaë after they wash ashore.
- F. None of above. chosen
Statements (153)
| Predicate | Object |
|---|---|
| instanceOf |
brute-force attack tool
ⓘ
network login cracker ⓘ password cracking tool ⓘ security testing tool ⓘ |
| abbreviation | THC ⓘ |
| category |
network security software
ⓘ
password cracking software ⓘ penetration testing tool ⓘ |
| commonlyBundledWith |
Kali Linux
ⓘ
Parrot Security OS ⓘ
linked to:
Kali Linux
|
| developer | The Hacker’s Choice ⓘ |
| ethicalUse | authorized security testing only ⓘ |
| feature |
IPv6 support
ⓘ
module-based architecture ⓘ parallelized login attempts ⓘ proxy support ⓘ resume of interrupted sessions ⓘ support for many network protocols ⓘ |
| hasAlternativeName | THC-Hydra ⓘ |
| hasComponent |
GUI front-end xHydra
ⓘ
command-line interface ⓘ |
| isFreeSoftware | true ⓘ |
| isOpenSource | true ⓘ |
| license |
GPL
ⓘ
linked to:
GNU General Public License
|
| misuseRisk | unauthorized access to systems ⓘ |
| primaryFunction |
automate password guessing
ⓘ
perform brute-force attacks against login services ⓘ |
| requires |
wordlist of passwords
ⓘ
wordlist of usernames ⓘ |
| supportsAttackType |
credential stuffing
ⓘ
dictionary attack ⓘ online brute-force attack ⓘ |
| supportsBruteForceSpeedOptimization | true ⓘ |
| supportsOperatingSystem |
BSD
ⓘ
Linux ⓘ Unix-like systems ⓘ Windows ⓘ macOS ⓘ |
| supportsProtocol |
AFP
ⓘ
AFP auth ⓘ AFP password ⓘ Asterisk ⓘ Asterisk auth ⓘ CISCO AAA ⓘ
linked to:
RADIUS
CISCO enable ⓘ CVS ⓘ CVS auth ⓘ CVS password ⓘ Cisco AAA auth ⓘ Cisco auth ⓘ Cisco enable ⓘ Cisco enable auth ⓘ FTP ⓘ FTP password ⓘ Firebird ⓘ Firebird auth ⓘ HTTP ⓘ HTTP-Form-Get ⓘ HTTP-Form-Post ⓘ HTTP-Proxy ⓘ HTTP-Proxy auth ⓘ HTTPS ⓘ IMAP ⓘ IMAP AUTH ⓘ IMAP password ⓘ IRC ⓘ IRC auth ⓘ IRC password ⓘ LDAP ⓘ LDAP auth ⓘ LDAP password ⓘ MSSQL ⓘ
linked to:
SQL Server
MSSQL auth ⓘ MSSQL password ⓘ MySQL ⓘ MySQL auth ⓘ MySQL password ⓘ NCP ⓘ NCP auth ⓘ NCP password ⓘ NNTP ⓘ NNTP auth ⓘ Oracle SID ⓘ Oracle auth ⓘ Oracle listener ⓘ
linked to:
Oracle Net Services
Oracle password ⓘ PC-Anywhere ⓘ PC-Anywhere auth ⓘ PC-Anywhere password ⓘ POP3 ⓘ POP3 AUTH ⓘ POP3 password ⓘ PostgreSQL ⓘ PostgreSQL auth ⓘ PostgreSQL password ⓘ RADIUS ⓘ RADIUS auth ⓘ RADIUS password ⓘ RDP ⓘ RDP NLA ⓘ RDP password ⓘ Redis ⓘ Redis auth ⓘ Redis password ⓘ Rexec ⓘ Rexec auth ⓘ Rlogin ⓘ
linked to:
Telnet
Rlogin auth ⓘ Rsh ⓘ Rsh auth ⓘ SAP/R3 ⓘ
linked to:
SAP
SAP/R3 auth ⓘ SIP ⓘ SIP auth ⓘ SIP password ⓘ SMB ⓘ SMB LM ⓘ SMB NT ⓘ SMB password ⓘ SMTP ⓘ SMTP AUTH ⓘ SMTP EXPN ⓘ
linked to:
SMTP
SMTP VRFY ⓘ SMTP password ⓘ SNMP ⓘ SNMP auth ⓘ SSH ⓘ SSH password ⓘ SSH v2 ⓘ
linked to:
SSH
Socks5 ⓘ Socks5 auth ⓘ Subversion ⓘ Subversion auth ⓘ Subversion password ⓘ Teamspeak ⓘ Teamspeak auth ⓘ Teamspeak password ⓘ Telnet ⓘ Telnet password ⓘ VMAUTHD ⓘ VMAUTHD auth ⓘ VMAUTHD password ⓘ VNC ⓘ VNC login ⓘ VNC password ⓘ XMPP ⓘ XMPP auth ⓘ XMPP password ⓘ |
| typicalUseCase |
password strength assessment
ⓘ
penetration testing ⓘ security auditing ⓘ |
| website | https://github.com/vanhauser-thc/thc-hydra ⓘ |
| writtenInLanguage | C ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Hydra Description of subject: Hydra is a widely used network login cracker designed to perform fast, automated brute-force attacks against numerous protocols and services.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.