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hacktricks/reversing/reversing-tools-basic-methods/blobrunner.md

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{% hint style="success" %}
Aprenda e pratique Hacking AWS:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
Aprenda e pratique Hacking GCP: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
<details>
<summary>Support HackTricks</summary>
* Confira os [**planos de assinatura**](https://github.com/sponsors/carlospolop)!
* **Junte-se ao** 💬 [**grupo do Discord**](https://discord.gg/hRep4RUj7f) ou ao [**grupo do telegram**](https://t.me/peass) ou **siga**-nos no **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
* **Compartilhe truques de hacking enviando PRs para o** [**HackTricks**](https://github.com/carlospolop/hacktricks) e [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud) repositórios do github.
</details>
{% endhint %}
A única linha modificada do [código original](https://github.com/OALabs/BlobRunner) é a linha 10. Para compilar, basta **criar um projeto C/C++ no Visual Studio Code, copiar e colar o código e compilar**.
```c
#include <stdio.h>
#include <windows.h>
#include <stdlib.h>
#ifdef _WIN64
#include <WinBase.h>
#endif
// Define bool
#pragma warning(disable:4996)
#define true 1
#define false 0
const char* _version = "0.0.5";
const char* _banner = " __________.__ ___. __________\n"
" \\______ \\ | ____\\_ |__\\______ \\__ __ ____ ____ ___________ \n"
" | | _/ | / _ \\| __ \\| _/ | \\/ \\ / \\_/ __ \\_ __ \\ \n"
" | | \\ |_( <_> ) \\_\\ \\ | \\ | / | \\ | \\ ___/| | \\/ \n"
" |______ /____/\\____/|___ /____|_ /____/|___| /___| /\\___ >__| \n"
" \\/ \\/ \\/ \\/ \\/ \\/ \n\n"
" %s \n\n";
void banner() {
system("cls");
printf(_banner, _version);
return;
}
LPVOID process_file(char* inputfile_name, bool jit, int offset, bool debug) {
LPVOID lpvBase;
FILE* file;
unsigned long fileLen;
char* buffer;
DWORD dummy;
file = fopen(inputfile_name, "rb");
if (!file) {
printf(" [!] Error: Unable to open %s\n", inputfile_name);
return (LPVOID)NULL;
}
printf(" [*] Reading file...\n");
fseek(file, 0, SEEK_END);
fileLen = ftell(file); //Get Length
printf(" [*] File Size: 0x%04x\n", fileLen);
fseek(file, 0, SEEK_SET); //Reset
fileLen += 1;
buffer = (char*)malloc(fileLen); //Create Buffer
fread(buffer, fileLen, 1, file);
fclose(file);
printf(" [*] Allocating Memory...");
lpvBase = VirtualAlloc(NULL, fileLen, 0x3000, 0x40);
printf(".Allocated!\n");
printf(" [*] |-Base: 0x%08x\n", (int)(size_t)lpvBase);
printf(" [*] Copying input data...\n");
CopyMemory(lpvBase, buffer, fileLen);
return lpvBase;
}
void execute(LPVOID base, int offset, bool nopause, bool jit, bool debug)
{
LPVOID shell_entry;
#ifdef _WIN64
DWORD thread_id;
HANDLE thread_handle;
const char msg[] = " [*] Navigate to the Thread Entry and set a breakpoint. Then press any key to resume the thread.\n";
#else
const char msg[] = " [*] Navigate to the EP and set a breakpoint. Then press any key to jump to the shellcode.\n";
#endif
shell_entry = (LPVOID)((UINT_PTR)base + offset);
#ifdef _WIN64
printf(" [*] Creating Suspended Thread...\n");
thread_handle = CreateThread(
NULL, // Attributes
0, // Stack size (Default)
shell_entry, // Thread EP
NULL, // Arguments
0x4, // Create Suspended
&thread_id); // Thread identifier
if (thread_handle == NULL) {
printf(" [!] Error Creating thread...");
return;
}
printf(" [*] Created Thread: [%d]\n", thread_id);
printf(" [*] Thread Entry: 0x%016x\n", (int)(size_t)shell_entry);
#endif
if (nopause == false) {
printf("%s", msg);
getchar();
}
else
{
if (jit == true) {
// Force an exception by making the first byte not executable.
// This will cause
DWORD oldp;
printf(" [*] Removing EXECUTE access to trigger exception...\n");
VirtualProtect(shell_entry, 1 , PAGE_READWRITE, &oldp);
}
}
#ifdef _WIN64
printf(" [*] Resuming Thread..\n");
ResumeThread(thread_handle);
#else
printf(" [*] Entry: 0x%08x\n", (int)(size_t)shell_entry);
printf(" [*] Jumping to shellcode\n");
__asm jmp shell_entry;
#endif
}
void print_help() {
printf(" [!] Error: No file!\n\n");
printf(" Required args: <inputfile>\n\n");
printf(" Optional Args:\n");
printf(" --offset <offset> The offset to jump into.\n");
printf(" --nopause Don't pause before jumping to shellcode. Danger!!! \n");
printf(" --jit Forces an exception by removing the EXECUTE permission from the alloacted memory.\n");
printf(" --debug Verbose logging.\n");
printf(" --version Print version and exit.\n\n");
}
int main(int argc, char* argv[])
{
LPVOID base;
int i;
int offset = 0;
bool nopause = false;
bool debug = false;
bool jit = false;
char* nptr;
banner();
if (argc < 2) {
print_help();
return -1;
}
printf(" [*] Using file: %s \n", argv[1]);
for (i = 2; i < argc; i++) {
if (strcmp(argv[i], "--offset") == 0) {
printf(" [*] Parsing offset...\n");
i = i + 1;
if (strncmp(argv[i], "0x", 2) == 0) {
offset = strtol(argv[i], &nptr, 16);
}
else {
offset = strtol(argv[i], &nptr, 10);
}
}
else if (strcmp(argv[i], "--nopause") == 0) {
nopause = true;
}
else if (strcmp(argv[i], "--jit") == 0) {
jit = true;
nopause = true;
}
else if (strcmp(argv[i], "--debug") == 0) {
debug = true;
}
else if (strcmp(argv[i], "--version") == 0) {
printf("Version: %s", _version);
}
else {
printf("[!] Warning: Unknown arg: %s\n", argv[i]);
}
}
base = process_file(argv[1], jit, offset, debug);
if (base == NULL) {
printf(" [!] Exiting...");
return -1;
}
printf(" [*] Using offset: 0x%08x\n", offset);
execute(base, offset, nopause, jit, debug);
printf("Pausing - Press any key to quit.\n");
getchar();
return 0;
}
```
{% hint style="success" %}
Aprenda e pratique Hacking AWS:<img src="/.gitbook/assets/arte.png" alt="" data-size="line">[**HackTricks Training AWS Red Team Expert (ARTE)**](https://training.hacktricks.xyz/courses/arte)<img src="/.gitbook/assets/arte.png" alt="" data-size="line">\
Aprenda e pratique Hacking GCP: <img src="/.gitbook/assets/grte.png" alt="" data-size="line">[**HackTricks Training GCP Red Team Expert (GRTE)**<img src="/.gitbook/assets/grte.png" alt="" data-size="line">](https://training.hacktricks.xyz/courses/grte)
<details>
<summary>Suporte ao HackTricks</summary>
* Confira os [**planos de assinatura**](https://github.com/sponsors/carlospolop)!
* **Junte-se ao** 💬 [**grupo do Discord**](https://discord.gg/hRep4RUj7f) ou ao [**grupo do telegram**](https://t.me/peass) ou **siga**-nos no **Twitter** 🐦 [**@hacktricks\_live**](https://twitter.com/hacktricks\_live)**.**
* **Compartilhe truques de hacking enviando PRs para os repositórios do** [**HackTricks**](https://github.com/carlospolop/hacktricks) e [**HackTricks Cloud**](https://github.com/carlospolop/hacktricks-cloud).
</details>
{% endhint %}
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