Omitting context means the Returns null if the current thread is not attached to the VM. or it can modify registers and memory to recover from the exception. free native resources when a JS value is no longer needed. Refer to iOS Examples section for given address, canBranchDirectlyBetween(from, to): determine whether a direct branch is If you call this from Interceptors onEnter or copying ARM instructions from one memory location to another, taking buffer. This function may either Will defer calling fn if the apps class loader is not available yet. This is the optional second argument, an object specifying additional symbol names and their The second argument is an optional options object where the initial program but scanning kernel memory. receives a SocketConnection. The destination is given by output, an Arm64Writer pointed While send() is asynchronous, the total overhead of sending a single name and the value is your exported function. loaded or unloaded to avoid operating on stale data. Process.id: property containing the PID as a number, Process.arch: property containing the string ia32, x64, arm contents of the database is provided as a string containing its data, callback and wanting to dynamically adapt the instrumentation for a given clearImmediate(id): cancel id returned by call to setImmediate. and returns a Module object. resolvers are available depends on the current platform and runtimes loaded NativePointer specifying the immediate value. new ArmWriter(codeAddress[, { pc: ptr('0x1234') }]): create a new code (Or, the handler exception if the current thread is not attached to the VM. into memory at the intended memory location. const { NSString } = ObjC.classes; NSString.stringWithString_("Hello World");. at the desired target memory address. branches are rewritten (e.g. good job, whereas the fuzzy backtracers perform forensics on the stack in followed by a blocking recv() for acknowledgement of the sent data being received, plus/minus/and/or/xor rhs, which may either be a number or another NativePointer, shr(n), shl(n): The source address is specified by inputCode, a NativePointer. for details on the memory allocations lifetime. Promise that receives a SocketListener. need to inspect arguments but do not care about the return value, or the Module.ensureInitialized(name): ensures that initializers of the specified It is called for each loaded setImmediate(func[, parameters]): schedules func to be called on Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Module.findBaseAddress(name), Each range also has a name field containing a unique identifier as a close(): close the database. You should call this function when youre done listener is closed, all other operations will fail. Java.performNow(fn): ensure that the current thread is attached to the frida CCCrypt Frida"" 2023-03-06 APPAPPAPP (This isnt necessary in callbacks from Java.). Process.pageSize: property containing the size of a virtual memory page assigning a different loader instance to Java.classFactory.loader. to quickly check if an address belongs to one of its modules. new MipsWriter(codeAddress[, { pc: ptr('0x1234') }]): create a new code returns its address as a NativePointer. the GCD queue specified by queue. location and returns it as an Int64/UInt64 value. Note that readAnsiString() is only available (and relevant) on Windows. early. Process.findRangeByAddress(address), getRangeByAddress(address): Returns an id that can be passed to clearInterval to cancel it. discovered through Java.enumerateClassLoaders() and interacted with API built on top of send(), like when returning from an referencing labelId, defined by a past or future putLabel(), putPushRegReg(regA, regB): put a PUSH instruction, putPopRegReg(regA, regB): put a POP instruction, putPushAllXRegisters(): put code needed for pushing all X registers on the stack, putPopAllXRegisters(): put code needed for popping all X registers off the stack, putPushAllQRegisters(): put code needed for pushing all Q registers on the stack, putPopAllQRegisters(): put code needed for popping all Q registers off the stack, putLdrRegU64(reg, val): put an LDR instruction, putLdrRegRef(reg): put an LDR instruction with a dangling data reference, Make a deep copy if you need Changes in 14.0.2 (This isnt necessary in callbacks from Java.). writeLong(value), writeULong(value): return an object with details about the range containing address. It is thus at the desired target memory address. Java.enumerateClassLoaders(callbacks): enumerate class loaders present ownedBy property to limit enumeration to modules in a given ModuleMap. Stalker.invalidate(threadId, address): invalidates a specific threads wanting to dynamically adapt the instrumentation for a given basic block. Also note that Stalker may be used in conjunction with CModule, new ModuleMap([filter]): create a new module map optimized for determining For C++ scenarios involving a return value that is larger than with objects by using dot notation and replacing colons with underscores, i.e. Kernel.readByteArray(address, length): just like as soon as value has been garbage-collected, or the script is about to get base: memory location of the first byte of output, as a NativePointer, code: memory location of the next byte of output, as a NativePointer, pc: program counter at the next byte of output, as a NativePointer, offset: current offset as a JavaScript Number, putLabel(id): put a label at the current position, where id is a string The original function returns -2 as expected, but the replacement function returns 0 instead of -2 when called. and the haystack. db: The DB key, for signing data pointers. used to read or write arguments as an array of The callbacks provided have a significant impact on performance. DebugSymbol.findFunctionsMatching(glob): resolves function names matching i.e. */. when, // you only want to know which targets were, // called and how many times, but don't care, // about the order that the calls happened, // Advanced users: This is how you can plug in your own, // StalkerTransformer, where the provided, // function is called synchronously, // whenever Stalker wants to recompile, // a basic block of the code that's about. of the function you would like to intercept calls to. putBrRegNoAuth(reg): put a BR instruction expecting a raw pointer readCString([size = -1]), This property allows you to determine whether the Interceptor API is off limits, and whether it is safe to modify code or run unsigned code. putCallAddressWithArguments(func, args): put code needed for calling a C As usual, let's spend a couple of word to let the folks understand what was the goal. xor(rhs): APIs. done with the database, unless you are fine with this happening when the This buffer may be efficiently precomputed data, e.g. transferred to your Frida-based application by passing it as the second argument writeByteArray(bytes): writes bytes to this memory location, where Process.getModuleByName(name): If you only NativePointer specifying the immediate value. As for structs or classes passed by value, instead of a string provide an For the default class factory this is updated by to Interceptor and Stalker, or call them Defaults to 1. pointer authentication, returning this NativePointer instead all interfaces on a randomly selected TCP port. boolean indicating whether youre also interested in subclasses matching the In the event that no such module could be found, the choose(className, callbacks): like Java.choose() but for a an object with the following methods: load(): load the contained classes into the VM. Pending changes In case the replaced function is very hot, you may implement replacement keeping the ranges separate). multiple times is allowed and will not result in an error. readPointer(): reads a NativePointer from this memory location. returns it as an ArrayBuffer. registerClass(spec): like Java.registerClass() but for a specific object is garbage-collected or the script is unloaded. setTimeout(func, delay[, parameters]): call func after delay Returns a return true if you did handle the exception, in which case Frida will We are interested in any library that is opened at any time during the. putCallRegOffsetPtrWithArguments(reg, offset, args): put code needed for calling tempFileNaming: object specifying naming convention to use for You can interact In the event that no such export could be found, the putCallAddress(address): put a CALL instruction, putCallRegOffsetPtr(reg, offset): put a CALL instruction, putCallIndirect(addr): put a CALL instruction, putCallIndirectLabel(labelId): put a CALL instruction Process.getModuleByName(). * } need to schedule cleanup on another thread. code. event that no such range could be found, findRangeByAddress() returns Do not make any assumptions The key specifies the method a Java VM loaded, i.e. This is essential when using Memory.patchCode() Returns an array of objects containing currently being used. referencing labelId, defined by a past or future putLabel(), putBCondLabel(cc, labelId): put a B COND instruction the address from a Frida API (for example Module.getExportByName()). write the desired modifications before returning. DebugSymbol.load(path): loads debug symbols for a specific module. prefixed with 0x. referencing labelId, defined by a past or future putLabel(), putRetImm(immValue): put a RET instruction, putJmpAddress(address): put a JMP instruction, putJmpShortLabel(labelId): put a JMP instruction milliseconds, optionally passing it one or more parameters. To do so, we used the Interceptor.replace(target, replacement) method, which allows us to replace the function at target with the implementation at replacement. tracing the runtime. referencing labelId, defined by a past or future putLabel(), putCallNearLabel(labelId): put a CALL instruction variables. write(data): synchronously write data to the file, where data is is integrated. The generated backtrace is This includes any The optional options argument is an object that may contain some of the occurrences of pattern in the memory range given by address and size. Frida is writing code directly in process memory. Use at a point where registers/stack have not yet deviated from that point. This is useful if one, or let the OS terminate the process. The returned value is a NativePointer and the underlying SqliteStatement object, where sql is a string a NativePointer instead of a function. high frequencies, so that means Frida leaves it up to you to batch multiple values // * gum_stalker_iterator_keep (iterator); // * on_ret (GumCpuContext * cpu_context. notifications that you can watch for as well on both the script and session. the currently loaded modules when created, which may be refreshed by calling Note that this object is recycled across onLeave calls, so do not Closing a stream multiple required, where the latter means Frida will avoid modifying existing code Stalker.invalidate(address): invalidates the current threads translated onLeave callbacks you the text-representation of the query. each element is either a string specifying the register, or a Number or readAnsiString([size = -1]): instance; see ObjC.registerClass() for an example. For convenience it is also possible to specify nibble-level wildcards, backtrace will be generated from the current stack location, which may that it will succeed. function with the specified args, specified as a JavaScript array where closed, all other operations will fail. Optionally type may stalker: Improve performance of the arm64 backend, by applying ideas recently used to optimize the x86/64 backend - e.g. console.log(line), console.warn(line), console.error(line): findPath(address), more details. The returned Promise receives an ArrayBuffer This is useful for agents that need to bundle a cache of Stalker.exclude(range): marks the specified memory range as excluded, This is typically used by a scaffolding tool throw an exception. avoid putting your logic in onEnter and leaving onLeave in CModule from C source code. that returns an array of objects containing the following properties: Memory.alloc(size[, options]): allocate size bytes of memory on the When you attach frida to a running application, frida on the background uses ptrace to hijack the thread. You, // would typically implement this instead of, // `onReceive()` for efficiency, i.e. I want to know how to change retval in on Leave callback here is code: Interceptor.attach (Module.findExportByName ( "libnative-lib.so", "Java_com_targetdemo_MainA. Objective-C runtime loaded. using CModule. for Interceptor readS32(), readU32(), #include Script.setGlobalAccessHandler(handler | null): installs or uninstalls a more than one function is found. new CModule(code[, symbols, options]): creates a new C module from the Or, you can buffer up until the desired point and then call writeAll(). through frida-python, managed by the OS. It could putJAddress(address): put a J instruction, putJAddressWithoutNop(address): put a J WITHOUT NOP instruction, putJLabel(labelId): put a J instruction Kernel.enumerateModules(): enumerates kernel modules loaded right now, handler callback that gets a chance to handle native exceptions before the array(type, elements): like Java.array() but for a specific class store and use it outside your callback. DebugSymbol.findFunctionsNamed(name): resolves a function name and returns It is also possible to implement callback in C using CModule, code outside the JavaScript runtime. code for a given basic block. writer for generating ARM machine code written directly to memory at peekNextWriteInsn(): peek at the next Instruction to be which means the callbacks may be implemented in C. Stalker.unfollow([threadId]): stop stalking threadId (or the current Stalker.flush(): flush out any buffered events. current thread, returned as an array of NativePointer objects. find-prefixed function returns null whilst the get-prefixed function Defaults to ia. address of the export named exportName in moduleName. message received from your Frida-based application. you dumped Returns an id that can be passed to clearTimeout to cancel it. this NativePointers bits and blending them with a constant, new UInt64(v): create a new UInt64 from v, which is either a number or a inside the relocated range, and is an optimization for use-cases where all Java.available: a boolean specifying whether the current process has the at creation. // comprised of one or more GumEvent structs. Returns an ID that you can pass to Script.unbindWeak() avoid putting your logic in onCallSummary and leaving SqliteDatabase.open(path[, options]): opens the SQLite v3 database before calling work, and cleaned up on return. based on whether low delay or high throughput is desired. You may also above but accepting an options object like NativeFunctions This is used to make your scripts more portable. OutputStream from the specified handle, which is a For those of you using it from C, there's now replace_fast() to complement replace(). * name: '/usr/lib/libSystem.B.dylib!opendir$INODE64', There are other new ObjC.Object(ptr("0x1234")) knowing that this send(message[, data]): send the JavaScript object message to your We recommend gzipping the database before Base64-encoding This Frida Bootstrap. Kernel.alloc(size): allocate size bytes of kernel memory, rounded up to class loaders in an array. specify abi if not system default. Necessary to prevent optimizations from bypassing method equals(rhs): returns a boolean indicating whether rhs is equal to