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ntlmssp's Introduction

NTLMSSP

Windows NTLMSSP library written in Go.

This library has very few wrapper and error handling. Read source code and make sure you understand the Windows NTLM before using this library.

Usage

Parse binary

bs, _ := base64.StdEncoding.DecodeString("TlRMTVNTUAADAAAAGAAYAFAAAAAwADAAaAAAAAYABgBKAAAACgAKAEAAAAAAAAAAAAAAAAAAAAAAAAAABTCJoGEAZABtAGkAbgBMAEEAQgDKWtAQahWyLGUi6N0I3Y89TQ//e2QL4SPYLBXpg00OEIk5edtauBUdAQEAAAAAAAArN+A/oD/WAQRU5zwV4quKAAAAAAAAAAA=")
type3 := ntlmssp.NewAuthenticateMsg(bs)
type3.Display()

OUTPUT:

Authenticate Message (type3)
Signature: [78 84 76 77 83 83 80 0] (NTLMSSP)
MessageType: 3
Response Version: NTLMv2
LmChallengeResponse: ca5ad0106a15b22c6522e8dd08dd8f3d4d0fff7b640be123
    (Len: 24  Offset: 80)
NtChallengeResponse: d82c15e9834d0e10893979db5ab8151d01010000000000002b37e03fa03fd6010454e73c15e2ab8a0000000000000000
    (Len: 48  offset: 104)
    Response: d82c15e9834d0e10893979db5ab8151d
    NTLMv2ClientChallenge:
      ChallengeFromClient: 0454e73c15e2ab8a
      RespType: 1
      HiRespType: 1
      TimeStamp: 132363196552984363
      AVPair:
DomainName: LAB
    (Len: 6  Offset: 74)
UserName: admin
    (Len: 10  Offset: 64)
Workstation:
    (Len: 0  Offset: 0)
EncryptedRandomSessionKey: []
    (Len: 0  Offset: 0)
1... .... .... .... .... .... .... ....   NEGOTIATE_56BIT_ENCRYPTION: Set
.0.. .... .... .... .... .... .... ....   NEGOTIATE_EXPLICIT_KEY_EXCHANGE: Not set
..1. .... .... .... .... .... .... ....   NEGOTIATE_128BIT_SESSION_KEY: Set
...0 .... .... .... .... .... .... ....   NEGOTIATE_R1_UNUSED: Not set
.... 0... .... .... .... .... .... ....   NEGOTIATE_R2_UNUSED: Not set
.... .0.. .... .... .... .... .... ....   NEGOTIATE_R3_UNUSED: Not set
.... ..0. .... .... .... .... .... ....   NEGOTIATE_VERSION: Not set
.... ...0 .... .... .... .... .... ....   NEGOTIATE_R4_UNUSED: Not set
.... .... 1... .... .... .... .... ....   NEGOTIATE_REQUEST_TARGET_INFO: Set
.... .... .0.. .... .... .... .... ....   NEGOTIATE_REQUEST_NON_NT_SESSION_KEY: Not set
.... .... ..0. .... .... .... .... ....   NEGOTIATE_R5_UNUSED: Not set
.... .... ...0 .... .... .... .... ....   NEGOTIATE_IDENTITY_LEVEL_TOKEN: Not set
.... .... .... 1... .... .... .... ....   NEGOTIATE_EXTENDED_SESSION_SECURITY: Set
.... .... .... .0.. .... .... .... ....   NEGOTIATE_R6_UNUSED: Not set
.... .... .... ..0. .... .... .... ....   NEGOTIATE_TARGET_TYPE_SERVER: Not set
.... .... .... ...1 .... .... .... ....   NEGOTIATE_TARGET_TYPE_DOMAIN: Set
.... .... .... .... 0... .... .... ....   NEGOTIATE_ALWAYS_SIGN: Not set
.... .... .... .... .0.. .... .... ....   NEGOTIATE_R7_UNUSED: Not set
.... .... .... .... ..1. .... .... ....   NEGOTIATE_OEM_WORKSTATION_SUPPLIED: Set
.... .... .... .... ...1 .... .... ....   NEGOTIATE_OEM_DOMAIN_SUPPLIED: Set
.... .... .... .... .... 0... .... ....   NEGOTIATE_ANONYMOUS: Not set
.... .... .... .... .... .0.. .... ....   NEGOTIATE_R8_UNUSED: Not set
.... .... .... .... .... ..0. .... ....   NEGOTIATE_NTLM: Not set
.... .... .... .... .... ...0 .... ....   NEGOTIATE_R9_UNUSED: Not set
.... .... .... .... .... .... 0... ....   NEGOTIATE_LM_SESSION_KEY: Not set
.... .... .... .... .... .... .0.. ....   NEGOTIATE_DATAGRAM_CONNECTIONLESS: Not set
.... .... .... .... .... .... ..0. ....   NEGOTIATE_SEAL: Not set
.... .... .... .... .... .... ...0 ....   NEGOTIATE_SIGN: Not set
.... .... .... .... .... .... .... 0...   NEGOTIATE_R10_UNUSED: Not set
.... .... .... .... .... .... .... .1..   NEGOTIATE_REQUEST_TARGET_NAME: Set
.... .... .... .... .... .... .... ..0.   NEGOTIATE_OEM_CHARSET: Not set
.... .... .... .... .... .... .... ...1   NEGOTIATE_UNICODE_CHARSET: Set

Generate NTLM message

type2 := ntlmssp.NewChallengeMsg(nil)
type2.NegotiateFlags |= ntlmssp.NEGOTIATE_56BIT_ENCRYPTION |
    ntlmssp.NEGOTIATE_128BIT_SESSION_KEY |
    ntlmssp.NEGOTIATE_EXTENDED_SESSION_SECURITY |
    ntlmssp.NEGOTIATE_UNICODE_CHARSET
type2.SetTargetName([]byte("SMB"))
type2.SetServerChallenge([]byte("\x00\x11\x22\x33\x44\x55\x66\x77"))
type2.SetTargetInfo(map[string]interface{}{
    "MsvAvNbComputerName":  "WIN-123456",
    "MsvAvNbDomainName":    "XYZ.LAB",
    "MsvAvDnsComputerName": "DC$",
    "MsvAvDnsDomainName":   "XYZ.LAB",
})
fmt.Println(type2.Marshal('<'))

OUTPUT:

[78 84 76 77 83 83 80 0 2 0 0 0 6 0 6 0 48 0 0 0 1 0 136 160 0 17 34 51 68 85 102 119 0 0 0 0 0 0 0 0 74 0 74 0 54 0 0 0 83 0 77 0 66 0 1 0 20 0 87 0 73 0 78 0 45 0 49 0 50 0 51 0 52 0 53 0 54 0 2 0 14 0 88 0 89 0 90 0 46 0 76 0 65 0 66 0 3 0 6 0 68 0 67 0 36 0 4 0 14 0 88 0 89 0 90 0 46 0 76 0 65 0 66 0 0 0 0 0]

Example

Reference documents

ntlmssp's People

Contributors

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