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+### [App Bundle Extension]()
+* Application Bundle
+* App Bundle Structure
+* Info.plist
+  * CFBundleExecutable
+  * plutil
+  * __info_plist
+* Gatekeeper Bypass (not)using Info.plist
+* Resources
+* Dirty NIB
+* Frameworks
+  * CFBundlePackageType
+  * FMWK
+* PlugIns
+  * pluginkit
+* _CodeSignature
+  * CodeDirectory
+  * CodeRequirements
+  * CodeResources
+  * CodeSignature
+  * CodeEntitlements
+* Inconsistency in codesign
+* Re-signing apps
+* Re-signing system applications
+* make_bundle.sh
+
+___
+### [Cracking macOS apps](https://karol-mazurek.medium.com/cracking-macos-apps-39575dd672e0?sk=v2%2F727dce55-53ee-45f6-b051-2979e62f2ba1)
+* Binary patching methods
+* Application patching methods
+* Resigning the app without losing entitlements
+* Resigning the app for debugging
+* Electron Apps
+* /Contents/Resources/app.asar
+___
+### [I. Mach-O](https://karol-mazurek95.medium.com/snake-apple-i-mach-o-a8eda4b87263?sk=v2%2Ffc1cbfa4-e2d4-4387-9a82-b27191978b5b)
+* Universal Binary (Fat Binary)
+* Memory Pages
+  * mprotect()
+  * mmap()
+* Mach-O structure
+  * mach_header_64
+    * Magic
+    * cputype
+    * cpusubtype
+    * filetype
+    * flags
+  * load_command
+  * segment_command_64
+      * section_64
+      * __PAGEZERO
+      * __TEXT
+      * __DATA_CONST
+      * __DATA
+      * __RESTRICT
+      * __LINKEDIT
+* Chained Fixups
+  * Binding
+  * Rebasing
+  * LC_DYLD_CHAINED_FIXUPS
+  * dyld_chained_fixups_header
+  * LC_DYLD_CHAINED_FIXUPS
+  * dyld_chained_starts_in_image 
+  * dyld_chained_starts_in_segment
+  * dyld_info
+* LC_DYLD_EXPORTS_TRIE
+* LC_SYMTAB
+  * symtab_command
+  * nlist_64
+  * ntype
+  * n_desc
+  * REFERENCE_TYPE
+    * REFERENCED_DYNAMICALLY
+    * N_NO_DEAD_STRIP
+    * N_DESC_DISCARDED
+    * N_WEAK_REF 
+    * N_WEAK_DEF
+    * N_REF_TO_WEAK
+  * LIBRARY_ORDINAL
+* LC_DYSYMTAB
+* DYNAMIC LINKER & ENVIRONMENT VARIABLES
+  * LC_LOAD_DYLINKER
+  * dylinker_command
+  * LC_ID_DYLINKER
+  * LC_DYLD_ENVIRONMENT
+* UUID
+  * uuid_command
+  * uuidgen
+* BUILD VERSION
+  * LC_BUILD_VERSION
+  * build_version_command
+  * build_tool_version
+  * build_version_command
+* Source Version
+  * LC_SOURCE_VERSION
+  * source_version_command
+* ENTRY POINT
+  * LC_MAIN
+  * entry_point_command
+* Dynamic Libraries
+  * dylib_command
+* Function Addresses
+  * LC_FUNCTION_STARTS
+  * linkedit_data_command
+*  DATA_IN_CODE
+  * data_in_code_entry
+* ENDIANESS
+
+___
+### [II. Code Signing](https://karol-mazurek95.medium.com/snake-apple-ii-code-signing-f0a9967b7f02?sk=v2%2Fbbc87007-89ca-4135-91d6-668b5d2fe9ae)
+* CS_CodeDirectory
+* CDHash 
+* signature
+* CMS
+* Certificate Chain of Trust
+* Ad hoc signing
+* TrustCacheParser
+* Notarization
+* Code Signature
+* LC_CODE_SIGNATURE
+  * Super Blob
+  * Code Directory
+  * Requirement
+  * Entitlements (XML and DER)
+  * CMS Signature
+* Info.plist
+* cs_flags
+* CodeResources
+* ASN.1 and DER
+* openssl
+* RFC 5652–5.4. Message Digest Calculation Process.
+* signedAttrs
+
+___
+### [III. Checksec](https://karol-mazurek95.medium.com/snake-apple-iii-checksec-ed64a4b766c1?sk=v2%2Fb4b8d637-e906-4b6b-8088-ca1f893cd787)
+* PIE — Position-Independent Executable
+  * -fno-pie
+  * ModifyMachOFlags
+  * MH_PIE
+* ARC — Automatic Reference Counting
+  * -fobjc-arc
+  * _objc_release
+* SS — Stripped Symbols
+  * __mh_execute_header
+* SC — Stack Canary / Stack Cookie
+  * ___stack_chk_fail
+  * ___stack_chk_guard
+* NX stack
+  * -allow_stack_execute
+  * MH_ALLOW_STACK_EXECUTION
+* NX heap
+  * NO_HEAP_EXECUTION
+* XN — Execute Never
+  * mmap.PROT_READ
+  * mmap.PROT_WRITE
+  * mmap.PROT_EXEC
+  * com.apple.security.cs.allow-jit
+* Code Signature
+* Notarization
+  * notarytool
+  * notary service’s REST API.
+  * spctl
+* Encryption
+  * cryptid
+  * ipatool
+  * LC_ENCRYPTION_INFO
+* Restrict
+  * __RESTRICT
+  * -sectcreate
+* Hardened Runtime
+* App Sandbox
+  * com.apple.security.app-sandbox 
+* Fortify
+  * -D_FORTIFY_SOURCE
+* RPath
+
+___
+### [IV. Dylibs](https://karol-mazurek.medium.com/snake-apple-iv-dylibs-2c955439b94e?sk=v2%2Fdef72b7a-121a-47a1-af89-7bf53aed1ea2)
+* Libraries — Static vs Dynamic
+* Frameworks
+* Dylib Hijacking
+  * com.apple.security.cs.disable-library-validation
+  * com.apple.private.security.clear-library-validation
+* DYLD_PRINT_SEARCHING
+* libSystem.B.dylib
+* Dyld Shared Cache
+  * /System/Volumes/Preboot/Cryptexes/OS/System/Library/dyld/
+  * /System/Volumes/Preboot/Cryptexes/OS/System/DriverKit/System/Library/dyld/
+  * ipsw
+  * dyld-shared-cache-extractor
+  * dyld_cache_format.h.
+* Loading Process
+  * dylibtree
+  * MachOFile.cpp
+  * Loader.cpp
+  * Header.cpp
+* MachODylibLoadCommandsFinder 
+* Load Commands
+  * LC_LOAD_DYLIB
+  * LC_LOAD_WEAK_DYLIB
+  * LC_REEXPORT_DYLIB
+  * LC_LOAD_UPWARD_DYLIB
+  * LC_ID_DYLIB
+  * dylib_command 
+  * loader_path
+  * executable_path
+* install_name_tool
+* current_version
+* compatibility_version
+* enforceCompatVersion
+* CVE-2023–26818
+* dlopen
+* DYLD_PRINT_APIS
+* dtruss
+* fs_usage
+
+___
+### [V. Dyld](https://karol-mazurek.medium.com/snake-apple-v-dyld-8b36b674cc44?sk=v2%2F4acb16f8-fa88-41f0-8d7c-1362f4060010)
+* /usr/lib/dyld
+* com.apple.darwin.ignition
+* dylinker_command
+* LC_DYLD_ENVIRONMENT
+* dyldStartup.s
+* __dyld_start
+* dyldMain.cpp
+* dyld_usage
+* dyld_info
+* vmmap
+* lldb
+* symbols
+* Memory Layouts
+* DYLD_IN_CACHE
+* Interposing
+* DYLD_PRINT_INTERPOSING
+* DYLD_INSERT_LIBRARIES
+
+___
+### [DYLD — Do You Like Death? (I)](https://karol-mazurek.medium.com/dyld-do-you-like-death-i-8199faad040e?sk=v2%2F359b081f-d944-409b-9e7c-95f7c171b969)
+Startup | kernArgs | rebaseSelf | initializeLibc | task_self_trap | stack_guard | findArgv | findEnvp | findApple
+___
+### [DYLD — Do You Like Death? (II)](https://karol-mazurek.medium.com/dyld-do-you-like-death-ii-b74360b8af47?sk=v2%2Ff0cff71c-5345-4228-a639-653325fc979d)
+handleDyldInCache| isBuiltForSimulator | isTranslated | crossarch_trap | Calling Convention on ARM64v8 | __unused attribute | Dyld Shared Region | thisDyldUuid | hasExistingDyldCache | shared_region_check_np | Carry flag | dynamic data header | dyldInCacheMH
+___
+### [DYLD — Do You Like Death? (III)](https://karol-mazurek.medium.com/dyld-do-you-like-death-iii-af77701a3034?sk=v2%2F06c92503-2db9-40e2-b139-c9ae0a35e7b3)
+handleDyldInCache | DYLD_IN_CACHE | restartWithDyldInCache | dyld_all_image_infos | calculating offset for debugging Dyld in Cache
+___
+### [DYLD — Do You Like Death? (IV)](https://karol-mazurek.medium.com/dyld-do-you-like-death-iv-ede6b157752c?sk=v2%2F87ebe38d-004c-41a6-bc1f-43898494a512)
+RuntimeLocks | MemoryManager | dyld_hw_tpro | Lambda Capture | withWritableMemory | PAC | arm64e_preview_abi | __ptrauth_dyld_tpro0 | WriteProtectionState | previousState | os_compiler_barrier
+___
+### [DYLD — Do You Like Death? (V)](https://karol-mazurek.medium.com/dyld-do-you-like-death-v-c40a267573cb?sk=v2%2F4c9f16b2-59bd-406a-945d-10a1fba1001b)
+Linker Standard Library | EphemeralAllocator | Dyld Private Memory | PersistentAllocator | vm_allocate | vm_protect | _kernelrpc_mach_vm_allocate_trap | _kernelrpc_mach_vm_protect_trap 
+___
+### [DYLD — Do You Like Death? (VI)](https://karol-mazurek.medium.com/dyld-do-you-like-death-vi-1013a69118ff?sk=v2%2F37b3a61f-8483-4b38-977d-7f860944862b)
+ProcessConfig | Process::Process | Process::Security | csr_check | CSR_ALLOW_APPLE_INTERNAL | csrctl | syscall_csr_check | AMFI | internalInstall | isRestricted | isFairPlayEncrypted | amfiFlags | amfi_check_dyld_policy_self | ___sandbox_ms | ___mac_syscall | mpo_policy_syscall_t | MAC policy | com.apple.driver.AppleMobileFileIntegrity | _policy_syscall | _check_dyld_policy_internal | macos_Dyld_policy_collect_state | logDyldPolicyData | DYLD_AMFI_FAKE | getAMFI | pruneEnvVars | com.apple.security.cs.allow-dyld-environment-variables
+___
+### [DYLD — Do You Like Death? (VII)](https://karol-mazurek.medium.com/dyld-do-you-like-death-vii-62c202f98610?sk=v2%2Fab26bfcf-ba56-493d-9af3-2d8790ca6208)
+ProcessConfig | Process::Logging | Process::dyldCache | DYLD_PRINT_TO_STDERR | DYLD_PRINT_INTERPOSING | allowEnvVarsSharedCache | allowEnvVarsPrint | openLogFile | DYLD_PRINT_TO_FILE |  BSD open syscall | DYLD_SHARED_REGION | Shared Library Cache | DYLD_SHARED_CACHE_DIR | dyldCache | CacheFinder | Ignite | ignitionPayload | ignition | open_console | log_init | sysctlbyname | __sysctl | dyld_parse_boot_arg_int | dyld_parse_boot_arg_cstr | libignition | boot_init | stage_fire | getDyldCache | loadDyldCache | mapSplitCachePrivate | reuseExistingCache | mapSplitCacheSystemWide | jettison
+___
+### [DYLD — Do You Like Death? (VIII)](https://karol-mazurek.medium.com/dyld-do-you-like-death-viii-327d7e7f3c0f?sk=v2%2F6c6b611d-fee4-4d9d-8a36-d59a05116e23)
+ProcessConfig | Process::PathOverrides | Overrides and path fallbacks for Dylibs | security.allowEnvVarsPath | crashMsg | addEnvVar | DYLD_LIBRARY_PATH | DYLD_FRAMEWORK_PATH | DYLD_FALLBACK_FRAMEWORK_PATH | DYLD_FALLBACK_LIBRARY_PATH | DYLD_VERSIONED_FRAMEWORK_PATH | DYLD_VERSIONED_LIBRARY_PATH | DYLD_INSERT_LIBRARIES | DYLD_IMAGE_SUFFIX | DYLD_ROOT_PATH | _dylibPathOverridesExeLC | _dylibPathOverridesEnv | isLC_DYLD_ENV | CRSetCrashLogMessage2 | LC_DYLD_ENVIRONMENT | allowEmbeddedVars | _insertedDylibs | cryptexOSPath | VersionedPaths | processVersionedPaths | checkVersionedPath | LC_ID_DYLIB | sys.getDylibInfo | addPathOverride | dontUsePrebuiltForApp | adjustDevelopmentMode
+___
+### [DYLD — Do You Like Death? (IX)](https://karol-mazurek.medium.com/dyld-do-you-like-death-ix-5052c865100e?sk=v2%2Fe078d739-ab30-4f2d-8a12-eefc63dd73b4)
+RuntimeState | ProcessConfig | finalizeListTLV | FileManager | _fsUUIDMap | OrderedMap | UUIDs | PermanentRanges | state APIs
+___
+### [DYLD — Do You Like Death? (X)](https://karol-mazurek.medium.com/dyld-do-you-like-death-x-76408570c357?sk=v2%2F8b69c2f1-ce13-4d05-bba1-e0164c3de381)
+ExternallyViewableState | externallyViewable.init | dyld_all_image_info | exec_prefault_data | task_info | com.apple.security.get-task-allow | get_dyld_info | lsl:Vector | ProcessSnapshot | compact info | makeUnique | release | setDyldState | setInitialExternallyVisibleState | setShareCacheInfo | setDyld | inDyldCache | DYLD_IN_CACHE | recordFromInfo | FileRecord | Image | addImage | _snapshot | addImageInfo | setInitialImageCount | commit | compactInfoData | RemoteNotificationResponder
+___
+### [DYLD — Do You Like Death? (XI)](https://karol-mazurek.medium.com/dyld-do-you-like-death-xi-cef76bc8dc14?sk=v2%2F0b88b392-ae94-43d0-9120-109306051e00)
+prepare | APIs | isSimulatorPlatform | state.initializeClosureMode() | PrebuiltLoaders | JustInTimeLoader | PrebuilLoaderSet | dyld3 | dyld4 | Closures | initializeClosureMode | Loaders | validHeader | hasValidMagic | kmagic | dontUsePrebuiltForApp | findLaunchLoaderSet | cachePBLS | hasLaunchLoaderSetWithCDHash | findLaunchLoaderSetWithCDHash | findLaunchLoaderSet | allowOsProgramsToSaveUpdatedClosures | reserve | bit_ceil  | allowNonOsProgramsToSaveUpdatedClosures | DYLD_USE_CLOSURES | reserveExact | getOnDiskBinarySliceOffset | STACK_ALLOC_OVERFLOW_SAFE_ARRAY | topLevelLoaders | loadDependents | notifyDebuggerLoad | notifyDtrace | DOF | addPermamentRanges | STACK_ALLOC_ARRAY | weakDefMap | buildInterposingTables | handleStrongWeakDefOverrides | visibility | applyFixups | applyCachePatches | doSingletonPatching | applyInterposingToDyldCache | Libdyld.dylib | libdyld4Section | allImageInfos | storeProcessInfoPointer | __chkstk_darwin | partitionDelayLoads | DYLD_JUST_BUILD_CLOSURE | prewarming | notifyMonitorNeeded | LC_MAIN | LC_THREAD | getEntry | appMain | restorePreviousState | TPRO | libSystemHelpers | __exit
+
+___
+### [VI. AMFI](https://karol-mazurek.medium.com/snake-apple-vi-amfi-31c48fb92d33?sk=v2%2F8116bf86-e0a7-42be-ada9-5348447c01fd)
+* Kernel Extension
+  * AppleMobileFileIntegrity.kext
+  * /System/Library/Extensions
+  * Kext binary extraction
+  * Kernelcache.
+  * kextstat
+  * Dependent kexts
+  * KEXT_BUNDLE
+* Mach-O analysis
+* Kext Information Property List
+* __PRELINK_INFO
+* kmod_info
+* _PrelinkKmodInfo
+* AMFI Startup
+* Entrypoint
+  * OSBundleRequired
+  * IOKitPersonalities
+  * ioreg
+  * kxld
+  * OSKext::start
+  * __realmain
+  * initializeAppleMobileFileIntegrity
+  * mac_policy_init
+  * kernel_startup_initialize_upto
+  * kernel_bootstrap_thread
+  * mac_policy_initmach
+  * load_security_extensions_function
+  * load_security_extensions_function
+  * bootstrapLoadSecurityExtensions
+  * bootstrapLoadSecurityExtensions
+  * loadSecurityExtensions
+  * OSKext::loadKextWithIdentifier
+  * register_kmod
+  * OSRuntimeInitializeCPP
+  * vftable
+  * KEXT_NAME::start(IOService*)
+* Turning off AMFI
+  * amfi_get_out_of_my_way
+  * nvram boot-args=""
+* MAC policy syscall
+  * __mac_syscall
+  * mpo_cred_label_init_t
+* PROTECTIONS
+  * macos_dyld_policy_collect_state
+  * DYLD_INSERT_LIBRARIES
+  * cs.allow-relative-library-loads
+  * policy_syscall
+  * SUID GUID
+* Signature Validation
+  * vnode_check_signature
+  * mpo_vnode_check_signature_t
+  * cs_validate_page
+  * com.apple.private.amfi.can-execute-cdhash
+  * com.apple.rootless.storage.cvms
+  * jit-codesigning
+  * com.apple.security.get-task-allow
+  * com.apple.private.oop-jit.loader
+  * com.apple.private.amfi.can-execute-cdhash
+  * com.apple.dyld_sim
+  * com.apple.private.oop-jit.runner
+* Launch Constraints
+  * _proc_check_launch_constraints
+* Amfid
+  * /usr/libexec/amfid
+  * verify_code_directory
+  * _MIG_subsystem_1000
+  * routine_descriptor
+  * mach_msg
+
+___
+### [VII. Antivirus](https://karol-mazurek.medium.com/snake-apple-vii-antivirus-0a57acc10185?sk=v2%2F2c46d7ac-4435-41e6-bbda-2acb4eb78c76)
+* GATEKEEPER
+  * Application Whitelisting
+  * Quarantine attribute
+  * com.apple.quarantine
+  * De-Quarantining
+  * xattr
+  * ~/Library/Preferences/com.apple.LaunchServices.QuarantineEventsV*
+  * LSQuarantine.h
+* LAUNCH SERVICES
+  * Reversing DSC
+  * libquarantine.dylib
+  * App Translocation
+* QUARANTINE KEXT
+  * Tracing hooks
+  * hook_vnode_check_exec
+  * sandbox_enforce
+  * Double call mystery of apply_exec_quarantine
+  * quarantine_get_flags
+  * getxattr
+  * Flags default values for quarantined volume
+  * Quarantine flags logic
+* SYSTEM POLICY
+  * System Policy Database
+  * System Policy Daemon
+  * System Policy Manager (spctl)
+* XProtect
+  * gk.db
+  * XProtect.meta.plist
+  * XProtect.yara
+  * XProtect.plist
+  * Logging
+  * CoreSerivcesUIAgent
+  * Eicar test
+  * Malware creator test
+
+___
+### [VIII. Sandbox]()
+
+___
+### [SBPL Compilator](https://karol-mazurek.medium.com/sbpl-compilator-c05f5304d057?sk=v2%2F4ae3bf90-ff12-4fea-b0fc-0f2ef60d7b93)
+* .com.apple.containermanagerd.metadata.plist
+* SandboxProfileData
+* /System/Library/Sandbox/Profiles/
+* sandbox_compile_file
+* com.apple.security.get-task-allow
+* sandbox-exec
+* Sandbox.kext
+
+___
+### [IX. TCC]()
+
+___
+### [X. NU]()
+
+___
+### [Kernel Debugging Setup on MacOS](https://karol-mazurek.medium.com/kernel-debugging-setup-on-macos-07dd8c86cdb6?sk=v2%2F782bf539-a057-4f14-bbe7-f8e1ace26701)
+* KDK
+* sw_vers
+* BuildVersion
+* /Library/Developer/KDKs/
+* /var/tmp/PanicDumps
+* com.apple.kdumpd
+* kdp_match_name
+* DB_NMI_BTN_ENA
+* DB_REBOOT_POST_CORE
+* DB_ARP
+* DB_NMI
+* _panicd_ip
+* DB_DBG_POST_CORE
+* InstantPanic/build/InstantPanic.kext