├── .gitignore ├── License.md ├── README.md ├── bin └── sniffMK ├── sniffMK.xcodeproj └── project.pbxproj └── sniffMK └── sniffMK.m /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## Build generated 6 | build/ 7 | DerivedData/ 8 | 9 | ## Various settings 10 | *.pbxuser 11 | !default.pbxuser 12 | *.mode1v3 13 | !default.mode1v3 14 | *.mode2v3 15 | !default.mode2v3 16 | *.perspectivev3 17 | !default.perspectivev3 18 | xcuserdata/ 19 | 20 | ## Other 21 | *.moved-aside 22 | *.xcuserstate 23 | 24 | ## Obj-C/Swift specific 25 | *.hmap 26 | *.ipa 27 | *.dSYM.zip 28 | *.dSYM 29 | 30 | # CocoaPods 31 | # 32 | # We recommend against adding the Pods directory to your .gitignore. However 33 | # you should judge for yourself, the pros and cons are mentioned at: 34 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 35 | # 36 | # Pods/ 37 | 38 | # Carthage 39 | # 40 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 41 | # Carthage/Checkouts 42 | 43 | Carthage/Build 44 | 45 | # fastlane 46 | # 47 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 48 | # screenshots whenever they are needed. 49 | # For more information about the recommended setup visit: 50 | # https://github.com/fastlane/fastlane/blob/master/fastlane/docs/Gitignore.md 51 | 52 | fastlane/report.xml 53 | fastlane/Preview.html 54 | fastlane/screenshots 55 | fastlane/test_output 56 | 57 | # Code Injection 58 | # 59 | # After new code Injection tools there's a generated folder /iOSInjectionProject 60 | # https://github.com/johnno1962/injectionforxcode 61 | 62 | iOSInjectionProject/ 63 | sniffMK.xcodeproj/project.xcworkspace/contents.xcworkspacedata 64 | -------------------------------------------------------------------------------- /License.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # sniffMK 2 | `sniffMK` is a simple utility designed to sniff mouse and keyboard events on macOS. It is based on code from amit singh's website; (http://osxbook.com) 3 | 4 | It was designed to facilitate malware analysis (specifically OSX/FruitFly which can simulate both mouse and keyboard events - see BlackHat/DefCon [slides](https://speakerdeck.com/patrickwardle/fruitfly-via-a-custom-c-and-c-server?slide=18) for details). 5 | 6 | Run `sniffMK`, as root, to start sniffing events: 7 | ``` 8 | # ./sniffMK 9 | mouse/keyboard sniffer 10 | based on code from amit singh (http://osxbook.com) 11 | 12 | event: left mouse down 13 | x: 821.285156 14 | y: 727.726562 15 | 16 | event: left mouse up 17 | x: 821.285156 18 | y: 727.726562 19 | 20 | event: key down 21 | key modifiers: shift 22 | keycode: 0x4/h 23 | 24 | event: key up 25 | keycode: 0x4/h 26 | 27 | event: key down 28 | keycode: 0x22/i 29 | 30 | event: key up 31 | keycode: 0x22/i 32 | 33 | .... 34 | 35 | event: key down 36 | key modifiers: control 37 | keycode: 0x8/c 38 | ``` 39 | To only capture mouse events, execute `sniffMK` with the `-mouse` commandline argument.
40 | Similarly, execute it with the `-keyboard` commandline argument to only capture keyboard events. 41 | 42 | -------------------------------------------------------------------------------- /bin/sniffMK: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/objective-see/sniffMK/882b92fb4b8d073a0e0dc6757a9ec0aa8c856df9/bin/sniffMK -------------------------------------------------------------------------------- /sniffMK.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 46; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | 7DFDDA191F4796B3001A0257 /* sniffMK.m in Sources */ = {isa = PBXBuildFile; fileRef = 7DFDDA181F4796B3001A0257 /* sniffMK.m */; }; 11 | /* End PBXBuildFile section */ 12 | 13 | /* Begin PBXCopyFilesBuildPhase section */ 14 | 7D5FBE601F456C60000AA95B /* CopyFiles */ = { 15 | isa = PBXCopyFilesBuildPhase; 16 | buildActionMask = 2147483647; 17 | dstPath = /usr/share/man/man1/; 18 | dstSubfolderSpec = 0; 19 | files = ( 20 | ); 21 | runOnlyForDeploymentPostprocessing = 1; 22 | }; 23 | /* End PBXCopyFilesBuildPhase section */ 24 | 25 | /* Begin PBXFileReference section */ 26 | 7DFDDA181F4796B3001A0257 /* sniffMK.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = sniffMK.m; path = sniffMK/sniffMK.m; sourceTree = SOURCE_ROOT; }; 27 | 7DFDDA1C1F479897001A0257 /* sniffMK */ = {isa = PBXFileReference; lastKnownFileType = "compiled.mach-o.executable"; path = sniffMK; sourceTree = ""; }; 28 | /* End PBXFileReference section */ 29 | 30 | /* Begin PBXFrameworksBuildPhase section */ 31 | 7D5FBE5F1F456C60000AA95B /* Frameworks */ = { 32 | isa = PBXFrameworksBuildPhase; 33 | buildActionMask = 2147483647; 34 | files = ( 35 | ); 36 | runOnlyForDeploymentPostprocessing = 0; 37 | }; 38 | /* End PBXFrameworksBuildPhase section */ 39 | 40 | /* Begin PBXGroup section */ 41 | 7D5FBE591F456C60000AA95B = { 42 | isa = PBXGroup; 43 | children = ( 44 | 7DFDDA1D1F4798A5001A0257 /* src */, 45 | 7DFDDA1B1F479897001A0257 /* bin */, 46 | ); 47 | sourceTree = ""; 48 | }; 49 | 7DFDDA1B1F479897001A0257 /* bin */ = { 50 | isa = PBXGroup; 51 | children = ( 52 | 7DFDDA1C1F479897001A0257 /* sniffMK */, 53 | ); 54 | path = bin; 55 | sourceTree = ""; 56 | }; 57 | 7DFDDA1D1F4798A5001A0257 /* src */ = { 58 | isa = PBXGroup; 59 | children = ( 60 | 7DFDDA181F4796B3001A0257 /* sniffMK.m */, 61 | ); 62 | name = src; 63 | sourceTree = ""; 64 | }; 65 | /* End PBXGroup section */ 66 | 67 | /* Begin PBXNativeTarget section */ 68 | 7D5FBE611F456C60000AA95B /* sniffMK */ = { 69 | isa = PBXNativeTarget; 70 | buildConfigurationList = 7D5FBE691F456C61000AA95B /* Build configuration list for PBXNativeTarget "sniffMK" */; 71 | buildPhases = ( 72 | 7D5FBE5E1F456C60000AA95B /* Sources */, 73 | 7D5FBE5F1F456C60000AA95B /* Frameworks */, 74 | 7D5FBE601F456C60000AA95B /* CopyFiles */, 75 | 7DFDDA1A1F47987C001A0257 /* ShellScript */, 76 | ); 77 | buildRules = ( 78 | ); 79 | dependencies = ( 80 | ); 81 | name = sniffMK; 82 | productName = "sniffM&K"; 83 | productReference = 7DFDDA1E1F479967001A0257 /* sniffMK */; 84 | productType = "com.apple.product-type.tool"; 85 | }; 86 | /* End PBXNativeTarget section */ 87 | 88 | /* Begin PBXProject section */ 89 | 7D5FBE5A1F456C60000AA95B /* Project object */ = { 90 | isa = PBXProject; 91 | attributes = { 92 | LastUpgradeCheck = 0820; 93 | ORGANIZATIONNAME = "Objective-See"; 94 | TargetAttributes = { 95 | 7D5FBE611F456C60000AA95B = { 96 | CreatedOnToolsVersion = 8.2.1; 97 | DevelopmentTeam = VBG97UB4TA; 98 | ProvisioningStyle = Automatic; 99 | }; 100 | }; 101 | }; 102 | buildConfigurationList = 7D5FBE5D1F456C60000AA95B /* Build configuration list for PBXProject "sniffMK" */; 103 | compatibilityVersion = "Xcode 3.2"; 104 | developmentRegion = English; 105 | hasScannedForEncodings = 0; 106 | knownRegions = ( 107 | en, 108 | ); 109 | mainGroup = 7D5FBE591F456C60000AA95B; 110 | productRefGroup = 7D5FBE591F456C60000AA95B; 111 | projectDirPath = ""; 112 | projectRoot = ""; 113 | targets = ( 114 | 7D5FBE611F456C60000AA95B /* sniffMK */, 115 | ); 116 | }; 117 | /* End PBXProject section */ 118 | 119 | /* Begin PBXShellScriptBuildPhase section */ 120 | 7DFDDA1A1F47987C001A0257 /* ShellScript */ = { 121 | isa = PBXShellScriptBuildPhase; 122 | buildActionMask = 2147483647; 123 | files = ( 124 | ); 125 | inputPaths = ( 126 | ); 127 | outputPaths = ( 128 | ); 129 | runOnlyForDeploymentPostprocessing = 0; 130 | shellPath = /bin/sh; 131 | shellScript = "#move binary into top-level bin/ folder\nmv \"$CODESIGNING_FOLDER_PATH\" \"$SRCROOT/bin/\""; 132 | }; 133 | /* End PBXShellScriptBuildPhase section */ 134 | 135 | /* Begin PBXSourcesBuildPhase section */ 136 | 7D5FBE5E1F456C60000AA95B /* Sources */ = { 137 | isa = PBXSourcesBuildPhase; 138 | buildActionMask = 2147483647; 139 | files = ( 140 | 7DFDDA191F4796B3001A0257 /* sniffMK.m in Sources */, 141 | ); 142 | runOnlyForDeploymentPostprocessing = 0; 143 | }; 144 | /* End PBXSourcesBuildPhase section */ 145 | 146 | /* Begin XCBuildConfiguration section */ 147 | 7D5FBE671F456C61000AA95B /* Debug */ = { 148 | isa = XCBuildConfiguration; 149 | buildSettings = { 150 | ALWAYS_SEARCH_USER_PATHS = NO; 151 | CLANG_ANALYZER_NONNULL = YES; 152 | CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x"; 153 | CLANG_CXX_LIBRARY = "libc++"; 154 | CLANG_ENABLE_MODULES = YES; 155 | CLANG_ENABLE_OBJC_ARC = YES; 156 | CLANG_WARN_BOOL_CONVERSION = YES; 157 | CLANG_WARN_CONSTANT_CONVERSION = YES; 158 | CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR; 159 | CLANG_WARN_DOCUMENTATION_COMMENTS = YES; 160 | CLANG_WARN_EMPTY_BODY = YES; 161 | CLANG_WARN_ENUM_CONVERSION = YES; 162 | CLANG_WARN_INFINITE_RECURSION = YES; 163 | CLANG_WARN_INT_CONVERSION = YES; 164 | CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR; 165 | CLANG_WARN_SUSPICIOUS_MOVE = YES; 166 | CLANG_WARN_UNREACHABLE_CODE = YES; 167 | CLANG_WARN__DUPLICATE_METHOD_MATCH = YES; 168 | CODE_SIGN_IDENTITY = "-"; 169 | COPY_PHASE_STRIP = NO; 170 | DEBUG_INFORMATION_FORMAT = dwarf; 171 | ENABLE_STRICT_OBJC_MSGSEND = YES; 172 | ENABLE_TESTABILITY = YES; 173 | GCC_C_LANGUAGE_STANDARD = gnu99; 174 | GCC_DYNAMIC_NO_PIC = NO; 175 | GCC_NO_COMMON_BLOCKS = YES; 176 | GCC_OPTIMIZATION_LEVEL = 0; 177 | GCC_PREPROCESSOR_DEFINITIONS = ( 178 | "DEBUG=1", 179 | "$(inherited)", 180 | ); 181 | GCC_WARN_64_TO_32_BIT_CONVERSION = YES; 182 | GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR; 183 | GCC_WARN_UNDECLARED_SELECTOR = YES; 184 | GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE; 185 | GCC_WARN_UNUSED_FUNCTION = YES; 186 | GCC_WARN_UNUSED_VARIABLE = YES; 187 | MACOSX_DEPLOYMENT_TARGET = 10.12; 188 | MTL_ENABLE_DEBUG_INFO = YES; 189 | ONLY_ACTIVE_ARCH = YES; 190 | SDKROOT = macosx; 191 | }; 192 | name = Debug; 193 | }; 194 | 7D5FBE681F456C61000AA95B /* Release */ = { 195 | isa = XCBuildConfiguration; 196 | buildSettings = { 197 | ALWAYS_SEARCH_USER_PATHS = NO; 198 | CLANG_ANALYZER_NONNULL = YES; 199 | CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x"; 200 | CLANG_CXX_LIBRARY = "libc++"; 201 | CLANG_ENABLE_MODULES = YES; 202 | CLANG_ENABLE_OBJC_ARC = YES; 203 | CLANG_WARN_BOOL_CONVERSION = YES; 204 | CLANG_WARN_CONSTANT_CONVERSION = YES; 205 | CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR; 206 | CLANG_WARN_DOCUMENTATION_COMMENTS = YES; 207 | CLANG_WARN_EMPTY_BODY = YES; 208 | CLANG_WARN_ENUM_CONVERSION = YES; 209 | CLANG_WARN_INFINITE_RECURSION = YES; 210 | CLANG_WARN_INT_CONVERSION = YES; 211 | CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR; 212 | CLANG_WARN_SUSPICIOUS_MOVE = YES; 213 | CLANG_WARN_UNREACHABLE_CODE = YES; 214 | CLANG_WARN__DUPLICATE_METHOD_MATCH = YES; 215 | CODE_SIGN_IDENTITY = "-"; 216 | COPY_PHASE_STRIP = NO; 217 | DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym"; 218 | ENABLE_NS_ASSERTIONS = NO; 219 | ENABLE_STRICT_OBJC_MSGSEND = YES; 220 | GCC_C_LANGUAGE_STANDARD = gnu99; 221 | GCC_NO_COMMON_BLOCKS = YES; 222 | GCC_WARN_64_TO_32_BIT_CONVERSION = YES; 223 | GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR; 224 | GCC_WARN_UNDECLARED_SELECTOR = YES; 225 | GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE; 226 | GCC_WARN_UNUSED_FUNCTION = YES; 227 | GCC_WARN_UNUSED_VARIABLE = YES; 228 | MACOSX_DEPLOYMENT_TARGET = 10.12; 229 | MTL_ENABLE_DEBUG_INFO = NO; 230 | SDKROOT = macosx; 231 | }; 232 | name = Release; 233 | }; 234 | 7D5FBE6A1F456C61000AA95B /* Debug */ = { 235 | isa = XCBuildConfiguration; 236 | buildSettings = { 237 | CODE_SIGN_IDENTITY = ""; 238 | DEVELOPMENT_TEAM = VBG97UB4TA; 239 | PRODUCT_NAME = "$(TARGET_NAME)"; 240 | }; 241 | name = Debug; 242 | }; 243 | 7D5FBE6B1F456C61000AA95B /* Release */ = { 244 | isa = XCBuildConfiguration; 245 | buildSettings = { 246 | CODE_SIGN_IDENTITY = ""; 247 | DEVELOPMENT_TEAM = VBG97UB4TA; 248 | PRODUCT_NAME = "$(TARGET_NAME)"; 249 | }; 250 | name = Release; 251 | }; 252 | /* End XCBuildConfiguration section */ 253 | 254 | /* Begin XCConfigurationList section */ 255 | 7D5FBE5D1F456C60000AA95B /* Build configuration list for PBXProject "sniffMK" */ = { 256 | isa = XCConfigurationList; 257 | buildConfigurations = ( 258 | 7D5FBE671F456C61000AA95B /* Debug */, 259 | 7D5FBE681F456C61000AA95B /* Release */, 260 | ); 261 | defaultConfigurationIsVisible = 0; 262 | defaultConfigurationName = Release; 263 | }; 264 | 7D5FBE691F456C61000AA95B /* Build configuration list for PBXNativeTarget "sniffMK" */ = { 265 | isa = XCConfigurationList; 266 | buildConfigurations = ( 267 | 7D5FBE6A1F456C61000AA95B /* Debug */, 268 | 7D5FBE6B1F456C61000AA95B /* Release */, 269 | ); 270 | defaultConfigurationIsVisible = 0; 271 | defaultConfigurationName = Release; 272 | }; 273 | /* End XCConfigurationList section */ 274 | }; 275 | rootObject = 7D5FBE5A1F456C60000AA95B /* Project object */; 276 | } 277 | -------------------------------------------------------------------------------- /sniffMK/sniffMK.m: -------------------------------------------------------------------------------- 1 | // 2 | // File: sniff.m 3 | // Project: sniffM&K 4 | // 5 | // Created by: Patrick Wardle 6 | // Copyright: 2017 Objective-See 7 | // License: Creative Commons Attribution-NonCommercial 4.0 International License 8 | // 9 | // Compile: 10 | // a) Xcode, Product->Build 11 | // 12 | // or ... 13 | // 14 | // b) $ clang -o sniffMK sniffMK.m -framework Cocoa -framework Carbon 15 | // 16 | // Run (as root): 17 | // # ./sniffMK 18 | // 19 | // Notes: 20 | // a) code, largely based on altermouse.c/alterkeys.c (amit singh/http://osxbook.com) 21 | // b) run with '-mouse' for just mouse events or '-keyboard' for just key events 22 | // 23 | 24 | #import 25 | #import 26 | #import 27 | 28 | //event tap 29 | static CFMachPortRef eventTap = NULL; 30 | 31 | //map a printable keycode to a string 32 | // ->code based on: https://stackoverflow.com/a/33584460 33 | NSString* keyCodeToString(CGEventRef event, CGEventType type) 34 | { 35 | //keycode as string 36 | NSString* keyCodeAsString = nil; 37 | 38 | //status 39 | OSStatus status = !noErr; 40 | 41 | //(key) code 42 | CGKeyCode keyCode = 0; 43 | 44 | //keyboard layout data 45 | CFDataRef keylayoutData = NULL; 46 | 47 | //keyboard layout 48 | const UCKeyboardLayout* keyboardLayout = NULL; 49 | 50 | //key action 51 | UInt16 keyAction = 0; 52 | 53 | //modifer state 54 | UInt32 modifierState = 0; 55 | 56 | //dead key 57 | UInt32 deadKeyState = 0; 58 | 59 | //max length 60 | UniCharCount maxStringLength = 255; 61 | 62 | //actual lenth 63 | UniCharCount actualStringLength = 0; 64 | 65 | //string 66 | UniChar unicodeString[maxStringLength]; 67 | 68 | //zero out 69 | memset(unicodeString, 0x0, sizeof(unicodeString)); 70 | 71 | //get code 72 | keyCode = (CGKeyCode)CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode); 73 | 74 | //get key layout data 75 | keylayoutData = (CFDataRef)TISGetInputSourceProperty(TISCopyCurrentKeyboardInputSource(), kTISPropertyUnicodeKeyLayoutData); 76 | if(NULL == keylayoutData) 77 | { 78 | //bail 79 | goto bail; 80 | } 81 | 82 | //get keyboard layout 83 | keyboardLayout = (const UCKeyboardLayout*)CFDataGetBytePtr(keylayoutData); 84 | if(NULL == keyboardLayout) 85 | { 86 | //bail 87 | goto bail; 88 | } 89 | 90 | //set key action down 91 | if(kCGEventKeyDown == type) 92 | { 93 | //down 94 | keyAction = kUCKeyActionDown; 95 | } 96 | //set key action up 97 | else 98 | { 99 | //up 100 | keyAction = kUCKeyActionUp; 101 | } 102 | 103 | //TODO: 104 | // set modifierState based on event flags? 105 | 106 | //translate 107 | status = UCKeyTranslate(keyboardLayout, keyCode, keyAction, modifierState, LMGetKbdType(), 0, &deadKeyState, maxStringLength, &actualStringLength, unicodeString); 108 | if( (noErr != status) || 109 | (0 == actualStringLength) ) 110 | { 111 | //bail 112 | goto bail; 113 | } 114 | 115 | //init string 116 | keyCodeAsString = [[NSString stringWithCharacters:unicodeString length:(NSUInteger)actualStringLength] lowercaseString]; 117 | 118 | bail: 119 | 120 | return keyCodeAsString; 121 | } 122 | 123 | //build string of key modifiers (shift, command, etc) 124 | // ->code based on: https://stackoverflow.com/a/4425180/3854841 125 | NSMutableString* extractKeyModifiers(CGEventRef event) 126 | { 127 | //key modify(ers) 128 | NSMutableString* keyModifiers = nil; 129 | 130 | //flags 131 | CGEventFlags flags = 0; 132 | 133 | //alloc 134 | keyModifiers = [NSMutableString string]; 135 | 136 | //get flags 137 | flags = CGEventGetFlags(event); 138 | 139 | //control 140 | if(YES == !!(flags & kCGEventFlagMaskControl)) 141 | { 142 | //add 143 | [keyModifiers appendString:@"control "]; 144 | } 145 | 146 | //alt 147 | if(YES == !!(flags & kCGEventFlagMaskAlternate)) 148 | { 149 | //add 150 | [keyModifiers appendString:@"alt "]; 151 | } 152 | 153 | //command 154 | if(YES == !!(flags & kCGEventFlagMaskCommand)) 155 | { 156 | //add 157 | [keyModifiers appendString:@"command "]; 158 | } 159 | 160 | //shift 161 | if(YES == !!(flags & kCGEventFlagMaskShift)) 162 | { 163 | //add 164 | [keyModifiers appendString:@"shift "]; 165 | } 166 | 167 | //caps lock 168 | if(YES == !!(flags & kCGEventFlagMaskAlphaShift)) 169 | { 170 | //add 171 | [keyModifiers appendString:@"caps lock "]; 172 | } 173 | 174 | return keyModifiers; 175 | } 176 | 177 | //callback for mouse/keyboard events 178 | // ->for now, just format, then print the event to stdout 179 | CGEventRef eventCallback(CGEventTapProxy proxy, CGEventType type, CGEventRef event, void *refcon) 180 | { 181 | //(mouse) location 182 | CGPoint location = {0}; 183 | 184 | //(key) code 185 | CGKeyCode keyCode = 0; 186 | 187 | //key modify(ers) 188 | NSMutableString* keyModifiers = nil; 189 | 190 | //dbg msg 191 | printf("event: "); 192 | 193 | //what type? 194 | // ->pretty print 195 | switch(type) 196 | { 197 | //left mouse down 198 | case kCGEventLeftMouseDown: 199 | printf("left mouse down\n"); 200 | break; 201 | 202 | //left mouse up 203 | case kCGEventLeftMouseUp: 204 | printf("left mouse up\n"); 205 | break; 206 | 207 | //right mouse down 208 | case kCGEventRightMouseDown: 209 | printf("right mouse down\n"); 210 | break; 211 | 212 | //right mouse up 213 | case kCGEventRightMouseUp: 214 | printf("right mouse up\n"); 215 | break; 216 | 217 | /* 218 | case kCGEventMouseMoved: 219 | printf("kCGEventMouseMoved\n"); 220 | break; 221 | */ 222 | 223 | //left mouse dragged 224 | case kCGEventLeftMouseDragged: 225 | printf("left mouse dragged\n"); 226 | break; 227 | 228 | //right mouse dragged 229 | case kCGEventRightMouseDragged: 230 | printf("right mouse dragged\n"); 231 | break; 232 | 233 | //key down 234 | case kCGEventKeyDown: 235 | 236 | //get key modifiers 237 | keyModifiers = extractKeyModifiers(event); 238 | 239 | printf("key down\n"); 240 | break; 241 | 242 | //key up 243 | case kCGEventKeyUp: 244 | printf("key up\n"); 245 | break; 246 | 247 | // event tap timeout 248 | case kCGEventTapDisabledByTimeout: 249 | CGEventTapEnable(eventTap, true); 250 | printf("Event tap timed out: restarting tap"); 251 | return event; 252 | 253 | default: 254 | printf("unknown (%d)\n", type); 255 | } 256 | 257 | //for key presses 258 | // ->dump extra info 259 | if( (kCGEventKeyDown == type) || (kCGEventKeyUp == type) ) 260 | { 261 | //get code 262 | keyCode = (CGKeyCode)CGEventGetIntegerValueField(event, kCGKeyboardEventKeycode); 263 | 264 | //any key modifiers? 265 | if(0 != keyModifiers.length) 266 | { 267 | //dbg msg 268 | printf("key modifiers: %s\n", keyModifiers.UTF8String); 269 | } 270 | 271 | //dbg msg 272 | printf("keycode: %#x/%d/%s\n\n", keyCode, keyCode, keyCodeToString(event, type).UTF8String); 273 | } 274 | 275 | //for mouse 276 | // ->print location 277 | else 278 | { 279 | //get location 280 | location = CGEventGetLocation(event); 281 | 282 | //dbg msg 283 | printf("(x: %f, y: %f)\n\n", location.x, location.y); 284 | } 285 | 286 | return event; 287 | } 288 | 289 | //main interface 290 | // ->parse args, then sniff (forever) 291 | int main(int argc, const char * argv[]) 292 | { 293 | //event mask 294 | // ->events to sniff 295 | CGEventMask eventMask = 0; 296 | 297 | //run loop source 298 | CFRunLoopSourceRef runLoopSource = NULL; 299 | 300 | //pool 301 | @autoreleasepool 302 | { 303 | //dbg msg 304 | printf("mouse/keyboard sniffer\nbased on code from amit singh (http://osxbook.com)\n\n"); 305 | 306 | //gotta be r00t 307 | // unless this program has been added to 'Security & Privacy' -> 'Accessibility' 308 | if(0 != geteuid()) 309 | { 310 | //err msg/bail 311 | printf("ERROR: run as root\n\n"); 312 | goto bail; 313 | } 314 | 315 | //'-mouse' 316 | // ->just sniff mouse 317 | if( (2 == argc) && 318 | (0 == strcmp(argv[1], "-mouse")) ) 319 | { 320 | //dbg msg 321 | printf("initializing event mask for 'mouse' events\n"); 322 | 323 | //init event mask with mouse events 324 | // ->add 'CGEventMaskBit(kCGEventMouseMoved)' if you want to also capture (noisy) mouse move events 325 | eventMask = CGEventMaskBit(kCGEventLeftMouseDown) | CGEventMaskBit(kCGEventLeftMouseUp) | CGEventMaskBit(kCGEventRightMouseDown) | CGEventMaskBit(kCGEventRightMouseUp) | 326 | CGEventMaskBit(kCGEventLeftMouseDragged) | CGEventMaskBit(kCGEventRightMouseDragged); 327 | 328 | } 329 | 330 | //'-keyboard' 331 | // ->just sniff keyboard 332 | else if( (2 == argc) && 333 | (0 == strcmp(argv[1], "-keyboard")) ) 334 | { 335 | //dbg msg 336 | printf("initializing event mask for 'keyboard' events\n"); 337 | 338 | //init event mask with mouse events 339 | // ->add 'CGEventMaskBit(kCGEventMouseMoved)' for mouse move events 340 | eventMask = CGEventMaskBit(kCGEventKeyDown) | CGEventMaskBit(kCGEventKeyUp); 341 | 342 | } 343 | 344 | //sniff both! 345 | else 346 | { 347 | //dbg msg 348 | printf("initializing event mask for both 'mouse' and 'keyboard' events\n"); 349 | 350 | //init event with mouse events & key presses 351 | eventMask = CGEventMaskBit(kCGEventLeftMouseDown) | CGEventMaskBit(kCGEventLeftMouseUp) | CGEventMaskBit(kCGEventRightMouseDown) | CGEventMaskBit(kCGEventRightMouseUp) | 352 | CGEventMaskBit(kCGEventLeftMouseDragged) | CGEventMaskBit(kCGEventRightMouseDragged) | CGEventMaskBit(kCGEventKeyDown) | CGEventMaskBit(kCGEventKeyUp); 353 | 354 | } 355 | 356 | //create event tap 357 | eventTap = CGEventTapCreate(kCGSessionEventTap, kCGHeadInsertEventTap, 0, eventMask, eventCallback, NULL); 358 | if(NULL == eventTap) 359 | { 360 | //err msg/bail 361 | printf("ERROR: failed to create event tap\n"); 362 | goto bail; 363 | } 364 | 365 | //dbg msg 366 | printf("created event tap\n"); 367 | 368 | //run loop source 369 | runLoopSource = CFMachPortCreateRunLoopSource(kCFAllocatorDefault, eventTap, 0); 370 | 371 | //add to current run loop. 372 | CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopCommonModes); 373 | 374 | //enable tap 375 | CGEventTapEnable(eventTap, true); 376 | 377 | //dbg msg 378 | printf("enabled event tap to commence sniffing\n\n"); 379 | 380 | //go, go, go 381 | CFRunLoopRun(); 382 | } 383 | 384 | bail: 385 | 386 | //release event tap 387 | if(NULL != eventTap) 388 | { 389 | //release 390 | CFRelease(eventTap); 391 | 392 | //unset 393 | eventTap = NULL; 394 | } 395 | 396 | //release run loop src 397 | if(NULL != runLoopSource) 398 | { 399 | //release 400 | CFRelease(runLoopSource); 401 | 402 | //unset 403 | runLoopSource = NULL; 404 | } 405 | 406 | return 0; 407 | } 408 | --------------------------------------------------------------------------------