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GeezerVison is showing github.com — PythonMemoryModule/pythonmemorymodule/pefile.py at main · naksyn/PythonMemoryModule Expand file tree/ Copy pathpefile.pyMore file actions 7437 lines (6196 loc) · 269 KB / Copy pathpefile.pyFile metadata and controls7437 lines (6196 loc) · 269 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 #!/usr/bin/python # -*- coding: utf-8 -*- """pefile, Portable Executable reader module All the PE file basic structures are available with their default names as attributes of the instance returned. Processed elements such as the import table are made available with lowercase names, to differentiate them from the upper case basic structure names. pefile has been tested against many edge cases such as corrupted and malformed PEs as well as malware, which often attempts to abuse the format way beyond its standard use. To the best of my knowledge most of the abuse is handled gracefully. Copyright (c) 2005-2022 Ero Carrera <[email protected]> """ __author__ = "Ero Carrera" __version__ = "2022.5.30" import collections import os import struct import codecs import time import math import string import mmap from collections import Counter from hashlib import sha1 from hashlib import sha256 from hashlib import sha512 from hashlib import md5 import functools import copy as copymod import pythonmemorymodule.ordlookup as ordlookup codecs.register_error("backslashreplace_", codecs.lookup_error("backslashreplace")) long = int # lru_cache with a shallow copy of the objects returned (list, dicts, ..) # we don't use deepcopy as it's _really_ slow and the data we retrieved using # this is enough with copy.copy taken from # https://stackoverflow.com/questions/54909357 def lru_cache(maxsize=128, typed=False, copy=False): if not copy: return functools.lru_cache(maxsize, typed) def decorator(f): cached_func = functools.lru_cache(maxsize, typed)(f) @functools.wraps(f) def wrapper(*args, **kwargs): # return copymod.deepcopy(cached_func(*args, **kwargs)) return copymod.copy(cached_func(*args, **kwargs)) return wrapper return decorator @lru_cache(maxsize=2048) def cache_adjust_FileAlignment(val, file_alignment): if file_alignment < FILE_ALIGNMENT_HARDCODED_VALUE: return val return (int(val / 0x200)) * 0x200 @lru_cache(maxsize=2048) def cache_adjust_SectionAlignment(val, section_alignment, file_alignment): if section_alignment < 0x1000: # page size section_alignment = file_alignment # 0x200 is the minimum valid FileAlignment according to the documentation # although ntoskrnl.exe has an alignment of 0x80 in some Windows versions # # elif section_alignment < 0x80: # section_alignment = 0x80 if section_alignment and val % section_alignment: return section_alignment * (int(val / section_alignment)) return val def count_zeroes(data): return data.count(0) fast_load = False # This will set a maximum length of a string to be retrieved from the file. # It's there to prevent loading massive amounts of data from memory mapped # files. Strings longer than 1MB should be rather rare. MAX_STRING_LENGTH = 0x100000 # 2^20 # Maximum number of imports to parse. MAX_IMPORT_SYMBOLS = 0x2000 # Limit maximum length for specific string types separately MAX_IMPORT_NAME_LENGTH = 0x200 MAX_DLL_LENGTH = 0x200 MAX_SYMBOL_NAME_LENGTH = 0x200 # Lmit maximum number of sections before processing of sections will stop MAX_SECTIONS = 0x800 # The global maximum number of resource entries to parse per file MAX_RESOURCE_ENTRIES = 0x8000 # The maximum depth of nested resource tables MAX_RESOURCE_DEPTH = 32 # Limit number of exported symbols MAX_SYMBOL_EXPORT_COUNT = 0x2000 IMAGE_DOS_SIGNATURE = 0x5A4D IMAGE_DOSZM_SIGNATURE = 0x4D5A IMAGE_NE_SIGNATURE = 0x454E IMAGE_LE_SIGNATURE = 0x454C IMAGE_LX_SIGNATURE = 0x584C IMAGE_TE_SIGNATURE = 0x5A56 # Terse Executables have a 'VZ' signature IMAGE_NT_SIGNATURE = 0x00004550 IMAGE_NUMBEROF_DIRECTORY_ENTRIES = 16 IMAGE_ORDINAL_FLAG = 0x80000000 IMAGE_ORDINAL_FLAG64 = 0x8000000000000000 OPTIONAL_HEADER_MAGIC_PE = 0x10B OPTIONAL_HEADER_MAGIC_PE_PLUS = 0x20B def two_way_dict(pairs): return dict([(e[1], e[0]) for e in pairs] + pairs) directory_entry_types = [ ("IMAGE_DIRECTORY_ENTRY_EXPORT", 0), ("IMAGE_DIRECTORY_ENTRY_IMPORT", 1), ("IMAGE_DIRECTORY_ENTRY_RESOURCE", 2), ("IMAGE_DIRECTORY_ENTRY_EXCEPTION", 3), ("IMAGE_DIRECTORY_ENTRY_SECURITY", 4), ("IMAGE_DIRECTORY_ENTRY_BASERELOC", 5), ("IMAGE_DIRECTORY_ENTRY_DEBUG", 6), # Architecture on non-x86 platforms ("IMAGE_DIRECTORY_ENTRY_COPYRIGHT", 7), ("IMAGE_DIRECTORY_ENTRY_GLOBALPTR", 8), ("IMAGE_DIRECTORY_ENTRY_TLS", 9), ("IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG", 10), ("IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT", 11), ("IMAGE_DIRECTORY_ENTRY_IAT", 12), ("IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT", 13), ("IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR", 14), ("IMAGE_DIRECTORY_ENTRY_RESERVED", 15), ] DIRECTORY_ENTRY = two_way_dict(directory_entry_types) image_characteristics = [ ("IMAGE_FILE_RELOCS_STRIPPED", 0x0001), ("IMAGE_FILE_EXECUTABLE_IMAGE", 0x0002), ("IMAGE_FILE_LINE_NUMS_STRIPPED", 0x0004), ("IMAGE_FILE_LOCAL_SYMS_STRIPPED", 0x0008), ("IMAGE_FILE_AGGRESIVE_WS_TRIM", 0x0010), ("IMAGE_FILE_LARGE_ADDRESS_AWARE", 0x0020), ("IMAGE_FILE_16BIT_MACHINE", 0x0040), ("IMAGE_FILE_BYTES_REVERSED_LO", 0x0080), ("IMAGE_FILE_32BIT_MACHINE", 0x0100), ("IMAGE_FILE_DEBUG_STRIPPED", 0x0200), ("IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP", 0x0400), ("IMAGE_FILE_NET_RUN_FROM_SWAP", 0x0800), ("IMAGE_FILE_SYSTEM", 0x1000), ("IMAGE_FILE_DLL", 0x2000), ("IMAGE_FILE_UP_SYSTEM_ONLY", 0x4000), ("IMAGE_FILE_BYTES_REVERSED_HI", 0x8000), ] IMAGE_CHARACTERISTICS = two_way_dict(image_characteristics) section_characteristics = [ ("IMAGE_SCN_TYPE_REG", 0x00000000), # reserved ("IMAGE_SCN_TYPE_DSECT", 0x00000001), # reserved ("IMAGE_SCN_TYPE_NOLOAD", 0x00000002), # reserved ("IMAGE_SCN_TYPE_GROUP", 0x00000004), # reserved ("IMAGE_SCN_TYPE_NO_PAD", 0x00000008), # reserved ("IMAGE_SCN_TYPE_COPY", 0x00000010), # reserved ("IMAGE_SCN_CNT_CODE", 0x00000020), ("IMAGE_SCN_CNT_INITIALIZED_DATA", 0x00000040), ("IMAGE_SCN_CNT_UNINITIALIZED_DATA", 0x00000080), ("IMAGE_SCN_LNK_OTHER", 0x00000100), ("IMAGE_SCN_LNK_INFO", 0x00000200), ("IMAGE_SCN_LNK_OVER", 0x00000400), # reserved ("IMAGE_SCN_LNK_REMOVE", 0x00000800), ("IMAGE_SCN_LNK_COMDAT", 0x00001000), ("IMAGE_SCN_MEM_PROTECTED", 0x00004000), # obsolete ("IMAGE_SCN_NO_DEFER_SPEC_EXC", 0x00004000), ("IMAGE_SCN_GPREL", 0x00008000), ("IMAGE_SCN_MEM_FARDATA", 0x00008000), ("IMAGE_SCN_MEM_SYSHEAP", 0x00010000), # obsolete ("IMAGE_SCN_MEM_PURGEABLE", 0x00020000), ("IMAGE_SCN_MEM_16BIT", 0x00020000), ("IMAGE_SCN_MEM_LOCKED", 0x00040000), ("IMAGE_SCN_MEM_PRELOAD", 0x00080000), ("IMAGE_SCN_ALIGN_1BYTES", 0x00100000), ("IMAGE_SCN_ALIGN_2BYTES", 0x00200000), ("IMAGE_SCN_ALIGN_4BYTES", 0x00300000), ("IMAGE_SCN_ALIGN_8BYTES", 0x00400000), ("IMAGE_SCN_ALIGN_16BYTES", 0x00500000), # default alignment ("IMAGE_SCN_ALIGN_32BYTES", 0x00600000), ("IMAGE_SCN_ALIGN_64BYTES", 0x00700000), ("IMAGE_SCN_ALIGN_128BYTES", 0x00800000), ("IMAGE_SCN_ALIGN_256BYTES", 0x00900000), ("IMAGE_SCN_ALIGN_512BYTES", 0x00A00000), ("IMAGE_SCN_ALIGN_1024BYTES", 0x00B00000), ("IMAGE_SCN_ALIGN_2048BYTES", 0x00C00000), ("IMAGE_SCN_ALIGN_4096BYTES", 0x00D00000), ("IMAGE_SCN_ALIGN_8192BYTES", 0x00E00000), ("IMAGE_SCN_ALIGN_MASK", 0x00F00000), ("IMAGE_SCN_LNK_NRELOC_OVFL", 0x01000000), ("IMAGE_SCN_MEM_DISCARDABLE", 0x02000000), ("IMAGE_SCN_MEM_NOT_CACHED", 0x04000000), ("IMAGE_SCN_MEM_NOT_PAGED", 0x08000000), ("IMAGE_SCN_MEM_SHARED", 0x10000000), ("IMAGE_SCN_MEM_EXECUTE", 0x20000000), ("IMAGE_SCN_MEM_READ", 0x40000000), ("IMAGE_SCN_MEM_WRITE", 0x80000000), ] SECTION_CHARACTERISTICS = two_way_dict(section_characteristics) debug_types = [ ("IMAGE_DEBUG_TYPE_UNKNOWN", 0), ("IMAGE_DEBUG_TYPE_COFF", 1), ("IMAGE_DEBUG_TYPE_CODEVIEW", 2), ("IMAGE_DEBUG_TYPE_FPO", 3), ("IMAGE_DEBUG_TYPE_MISC", 4), ("IMAGE_DEBUG_TYPE_EXCEPTION", 5), ("IMAGE_DEBUG_TYPE_FIXUP", 6), ("IMAGE_DEBUG_TYPE_OMAP_TO_SRC", 7), ("IMAGE_DEBUG_TYPE_OMAP_FROM_SRC", 8), ("IMAGE_DEBUG_TYPE_BORLAND", 9), ("IMAGE_DEBUG_TYPE_RESERVED10", 10), ("IMAGE_DEBUG_TYPE_CLSID", 11), ("IMAGE_DEBUG_TYPE_VC_FEATURE", 12), ("IMAGE_DEBUG_TYPE_POGO", 13), ("IMAGE_DEBUG_TYPE_ILTCG", 14), ("IMAGE_DEBUG_TYPE_MPX", 15), ("IMAGE_DEBUG_TYPE_REPRO", 16), ("IMAGE_DEBUG_TYPE_EX_DLLCHARACTERISTICS", 20), ] DEBUG_TYPE = two_way_dict(debug_types) subsystem_types = [ ("IMAGE_SUBSYSTEM_UNKNOWN", 0), ("IMAGE_SUBSYSTEM_NATIVE", 1), ("IMAGE_SUBSYSTEM_WINDOWS_GUI", 2), ("IMAGE_SUBSYSTEM_WINDOWS_CUI", 3), ("IMAGE_SUBSYSTEM_OS2_CUI", 5), ("IMAGE_SUBSYSTEM_POSIX_CUI", 7), ("IMAGE_SUBSYSTEM_NATIVE_WINDOWS", 8), ("IMAGE_SUBSYSTEM_WINDOWS_CE_GUI", 9), ("IMAGE_SUBSYSTEM_EFI_APPLICATION", 10), ("IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER", 11), ("IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER", 12), ("IMAGE_SUBSYSTEM_EFI_ROM", 13), ("IMAGE_SUBSYSTEM_XBOX", 14), ("IMAGE_SUBSYSTEM_WINDOWS_BOOT_APPLICATION", 16), ] SUBSYSTEM_TYPE = two_way_dict(subsystem_types) machine_types = [ ("IMAGE_FILE_MACHINE_UNKNOWN", 0), ("IMAGE_FILE_MACHINE_I386", 0x014C), ("IMAGE_FILE_MACHINE_R3000", 0x0162), ("IMAGE_FILE_MACHINE_R4000", 0x0166), ("IMAGE_FILE_MACHINE_R10000", 0x0168), ("IMAGE_FILE_MACHINE_WCEMIPSV2", 0x0169), ("IMAGE_FILE_MACHINE_ALPHA", 0x0184), ("IMAGE_FILE_MACHINE_SH3", 0x01A2), ("IMAGE_FILE_MACHINE_SH3DSP", 0x01A3), ("IMAGE_FILE_MACHINE_SH3E", 0x01A4), ("IMAGE_FILE_MACHINE_SH4", 0x01A6), ("IMAGE_FILE_MACHINE_SH5", 0x01A8), ("IMAGE_FILE_MACHINE_ARM", 0x01C0), ("IMAGE_FILE_MACHINE_THUMB", 0x01C2), ("IMAGE_FILE_MACHINE_ARMNT", 0x01C4), ("IMAGE_FILE_MACHINE_AM33", 0x01D3), ("IMAGE_FILE_MACHINE_POWERPC", 0x01F0), ("IMAGE_FILE_MACHINE_POWERPCFP", 0x01F1), ("IMAGE_FILE_MACHINE_IA64", 0x0200), ("IMAGE_FILE_MACHINE_MIPS16", 0x0266), ("IMAGE_FILE_MACHINE_ALPHA64", 0x0284), ("IMAGE_FILE_MACHINE_AXP64", 0x0284), # same ("IMAGE_FILE_MACHINE_MIPSFPU", 0x0366), ("IMAGE_FILE_MACHINE_MIPSFPU16", 0x0466), ("IMAGE_FILE_MACHINE_TRICORE", 0x0520), ("IMAGE_FILE_MACHINE_CEF", 0x0CEF), ("IMAGE_FILE_MACHINE_EBC", 0x0EBC), ("IMAGE_FILE_MACHINE_AMD64", 0x8664), ("IMAGE_FILE_MACHINE_M32R", 0x9041), ("IMAGE_FILE_MACHINE_ARM64", 0xAA64), ("IMAGE_FILE_MACHINE_CEE", 0xC0EE), ] MACHINE_TYPE = two_way_dict(machine_types) relocation_types = [ ("IMAGE_REL_BASED_ABSOLUTE", 0), ("IMAGE_REL_BASED_HIGH", 1), ("IMAGE_REL_BASED_LOW", 2), ("IMAGE_REL_BASED_HIGHLOW", 3), ("IMAGE_REL_BASED_HIGHADJ", 4), ("IMAGE_REL_BASED_MIPS_JMPADDR", 5), ("IMAGE_REL_BASED_SECTION", 6), ("IMAGE_REL_BASED_REL", 7), ("IMAGE_REL_BASED_MIPS_JMPADDR16", 9), ("IMAGE_REL_BASED_IA64_IMM64", 9), ("IMAGE_REL_BASED_DIR64", 10), ("IMAGE_REL_BASED_HIGH3ADJ", 11), ] RELOCATION_TYPE = two_way_dict(relocation_types) dll_characteristics = [ ("IMAGE_LIBRARY_PROCESS_INIT", 0x0001), # reserved ("IMAGE_LIBRARY_PROCESS_TERM", 0x0002), # reserved ("IMAGE_LIBRARY_THREAD_INIT", 0x0004), # reserved ("IMAGE_LIBRARY_THREAD_TERM", 0x0008), # reserved ("IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA", 0x0020), ("IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE", 0x0040), ("IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY", 0x0080), ("IMAGE_DLLCHARACTERISTICS_NX_COMPAT", 0x0100), ("IMAGE_DLLCHARACTERISTICS_NO_ISOLATION", 0x0200), ("IMAGE_DLLCHARACTERISTICS_NO_SEH", 0x0400), ("IMAGE_DLLCHARACTERISTICS_NO_BIND", 0x0800), ("IMAGE_DLLCHARACTERISTICS_APPCONTAINER", 0x1000), ("IMAGE_DLLCHARACTERISTICS_WDM_DRIVER", 0x2000), ("IMAGE_DLLCHARACTERISTICS_GUARD_CF", 0x4000), ("IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE", 0x8000), ] DLL_CHARACTERISTICS = two_way_dict(dll_characteristics) FILE_ALIGNMENT_HARDCODED_VALUE = 0x200 # Unwind info-related enums unwind_info_flags = [ ("UNW_FLAG_EHANDLER", 0x01), ("UNW_FLAG_UHANDLER", 0x02), ("UNW_FLAG_CHAININFO", 0x04), ] UNWIND_INFO_FLAGS = two_way_dict(unwind_info_flags) registers = [ ("RAX", 0), ("RCX", 1), ("RDX", 2), ("RBX", 3), ("RSP", 4), ("RBP", 5), ("RSI", 6), ("RDI", 7), ("R8", 8), ("R9", 9), ("R10", 10), ("R11", 11), ("R12", 12), ("R13", 13), ("R14", 14), ("R15", 15), ] REGISTERS = two_way_dict(registers) # enum _UNWIND_OP_CODES UWOP_PUSH_NONVOL = 0 UWOP_ALLOC_LARGE = 1 UWOP_ALLOC_SMALL = 2 UWOP_SET_FPREG = 3 UWOP_SAVE_NONVOL = 4 UWOP_SAVE_NONVOL_FAR = 5 UWOP_EPILOG = 6 UWOP_SAVE_XMM128 = 8 UWOP_SAVE_XMM128_FAR = 9 UWOP_PUSH_MACHFRAME = 10 # Resource types resource_type = [ ("RT_CURSOR", 1), ("RT_BITMAP", 2), ("RT_ICON", 3), ("RT_MENU", 4), ("RT_DIALOG", 5), ("RT_STRING", 6), ("RT_FONTDIR", 7), ("RT_FONT", 8), ("RT_ACCELERATOR", 9), ("RT_RCDATA", 10), ("RT_MESSAGETABLE", 11), ("RT_GROUP_CURSOR", 12), ("RT_GROUP_ICON", 14), ("RT_VERSION", 16), ("RT_DLGINCLUDE", 17), ("RT_PLUGPLAY", 19), ("RT_VXD", 20), ("RT_ANICURSOR", 21), ("RT_ANIICON", 22), ("RT_HTML", 23), ("RT_MANIFEST", 24), ] RESOURCE_TYPE = two_way_dict(resource_type) # Language definitions lang = [ ("LANG_NEUTRAL", 0x00), ("LANG_INVARIANT", 0x7F), ("LANG_AFRIKAANS", 0x36), ("LANG_ALBANIAN", 0x1C), ("LANG_ARABIC", 0x01), ("LANG_ARMENIAN", 0x2B), ("LANG_ASSAMESE", 0x4D), ("LANG_AZERI", 0x2C), ("LANG_BASQUE", 0x2D), ("LANG_BELARUSIAN", 0x23), ("LANG_BENGALI", 0x45), ("LANG_BULGARIAN", 0x02), ("LANG_CATALAN", 0x03), ("LANG_CHINESE", 0x04), ("LANG_CROATIAN", 0x1A), ("LANG_CZECH", 0x05), ("LANG_DANISH", 0x06), ("LANG_DIVEHI", 0x65), ("LANG_DUTCH", 0x13), ("LANG_ENGLISH", 0x09), ("LANG_ESTONIAN", 0x25), ("LANG_FAEROESE", 0x38), ("LANG_FARSI", 0x29), ("LANG_FINNISH", 0x0B), ("LANG_FRENCH", 0x0C), ("LANG_GALICIAN", 0x56), ("LANG_GEORGIAN", 0x37), ("LANG_GERMAN", 0x07), ("LANG_GREEK", 0x08), ("LANG_GUJARATI", 0x47), ("LANG_HEBREW", 0x0D), ("LANG_HINDI", 0x39), ("LANG_HUNGARIAN", 0x0E), ("LANG_ICELANDIC", 0x0F), ("LANG_INDONESIAN", 0x21), ("LANG_ITALIAN", 0x10), ("LANG_JAPANESE", 0x11), ("LANG_KANNADA", 0x4B), ("LANG_KASHMIRI", 0x60), ("LANG_KAZAK", 0x3F), ("LANG_KONKANI", 0x57), ("LANG_KOREAN", 0x12), ("LANG_KYRGYZ", 0x40), ("LANG_LATVIAN", 0x26), ("LANG_LITHUANIAN", 0x27), ("LANG_MACEDONIAN", 0x2F), ("LANG_MALAY", 0x3E), ("LANG_MALAYALAM", 0x4C), ("LANG_MANIPURI", 0x58), ("LANG_MARATHI", 0x4E), ("LANG_MONGOLIAN", 0x50), ("LANG_NEPALI", 0x61), ("LANG_NORWEGIAN", 0x14), ("LANG_ORIYA", 0x48), ("LANG_POLISH", 0x15), ("LANG_PORTUGUESE", 0x16), ("LANG_PUNJABI", 0x46), ("LANG_ROMANIAN", 0x18), ("LANG_RUSSIAN", 0x19), ("LANG_SANSKRIT", 0x4F), ("LANG_SERBIAN", 0x1A), ("LANG_SINDHI", 0x59), ("LANG_SLOVAK", 0x1B), ("LANG_SLOVENIAN", 0x24), ("LANG_SPANISH", 0x0A), ("LANG_SWAHILI", 0x41), ("LANG_SWEDISH", 0x1D), ("LANG_SYRIAC", 0x5A), ("LANG_TAMIL", 0x49), ("LANG_TATAR", 0x44), ("LANG_TELUGU", 0x4A), ("LANG_THAI", 0x1E), ("LANG_TURKISH", 0x1F), ("LANG_UKRAINIAN", 0x22), ("LANG_URDU", 0x20), ("LANG_UZBEK", 0x43), ("LANG_VIETNAMESE", 0x2A), ("LANG_GAELIC", 0x3C), ("LANG_MALTESE", 0x3A), ("LANG_MAORI", 0x28), ("LANG_RHAETO_ROMANCE", 0x17), ("LANG_SAAMI", 0x3B), ("LANG_SORBIAN", 0x2E), ("LANG_SUTU", 0x30), ("LANG_TSONGA", 0x31), ("LANG_TSWANA", 0x32), ("LANG_VENDA", 0x33), ("LANG_XHOSA", 0x34), ("LANG_ZULU", 0x35), ("LANG_ESPERANTO", 0x8F), ("LANG_WALON", 0x90), ("LANG_CORNISH", 0x91), ("LANG_WELSH", 0x92), ("LANG_BRETON", 0x93), ] LANG = two_way_dict(lang) # Sublanguage definitions sublang = [ ("SUBLANG_NEUTRAL", 0x00), ("SUBLANG_DEFAULT", 0x01), ("SUBLANG_SYS_DEFAULT", 0x02), ("SUBLANG_ARABIC_SAUDI_ARABIA", 0x01), ("SUBLANG_ARABIC_IRAQ", 0x02), ("SUBLANG_ARABIC_EGYPT", 0x03), ("SUBLANG_ARABIC_LIBYA", 0x04), ("SUBLANG_ARABIC_ALGERIA", 0x05), ("SUBLANG_ARABIC_MOROCCO", 0x06), ("SUBLANG_ARABIC_TUNISIA", 0x07), ("SUBLANG_ARABIC_OMAN", 0x08), ("SUBLANG_ARABIC_YEMEN", 0x09), ("SUBLANG_ARABIC_SYRIA", 0x0A), ("SUBLANG_ARABIC_JORDAN", 0x0B), ("SUBLANG_ARABIC_LEBANON", 0x0C), ("SUBLANG_ARABIC_KUWAIT", 0x0D), ("SUBLANG_ARABIC_UAE", 0x0E), ("SUBLANG_ARABIC_BAHRAIN", 0x0F), ("SUBLANG_ARABIC_QATAR", 0x10), ("SUBLANG_AZERI_LATIN", 0x01), ("SUBLANG_AZERI_CYRILLIC", 0x02), ("SUBLANG_CHINESE_TRADITIONAL", 0x01), ("SUBLANG_CHINESE_SIMPLIFIED", 0x02), ("SUBLANG_CHINESE_HONGKONG", 0x03), ("SUBLANG_CHINESE_SINGAPORE", 0x04), ("SUBLANG_CHINESE_MACAU", 0x05), ("SUBLANG_DUTCH", 0x01), ("SUBLANG_DUTCH_BELGIAN", 0x02), ("SUBLANG_ENGLISH_US", 0x01), ("SUBLANG_ENGLISH_UK", 0x02), ("SUBLANG_ENGLISH_AUS", 0x03), ("SUBLANG_ENGLISH_CAN", 0x04), ("SUBLANG_ENGLISH_NZ", 0x05), ("SUBLANG_ENGLISH_EIRE", 0x06), ("SUBLANG_ENGLISH_SOUTH_AFRICA", 0x07), ("SUBLANG_ENGLISH_JAMAICA", 0x08), ("SUBLANG_ENGLISH_CARIBBEAN", 0x09), ("SUBLANG_ENGLISH_BELIZE", 0x0A), ("SUBLANG_ENGLISH_TRINIDAD", 0x0B), ("SUBLANG_ENGLISH_ZIMBABWE", 0x0C), ("SUBLANG_ENGLISH_PHILIPPINES", 0x0D), ("SUBLANG_FRENCH", 0x01), ("SUBLANG_FRENCH_BELGIAN", 0x02), ("SUBLANG_FRENCH_CANADIAN", 0x03), ("SUBLANG_FRENCH_SWISS", 0x04), ("SUBLANG_FRENCH_LUXEMBOURG", 0x05), ("SUBLANG_FRENCH_MONACO", 0x06), ("SUBLANG_GERMAN", 0x01), ("SUBLANG_GERMAN_SWISS", 0x02), ("SUBLANG_GERMAN_AUSTRIAN", 0x03), ("SUBLANG_GERMAN_LUXEMBOURG", 0x04), ("SUBLANG_GERMAN_LIECHTENSTEIN", 0x05), ("SUBLANG_ITALIAN", 0x01), ("SUBLANG_ITALIAN_SWISS", 0x02), ("SUBLANG_KASHMIRI_SASIA", 0x02), ("SUBLANG_KASHMIRI_INDIA", 0x02), ("SUBLANG_KOREAN", 0x01), ("SUBLANG_LITHUANIAN", 0x01), ("SUBLANG_MALAY_MALAYSIA", 0x01), ("SUBLANG_MALAY_BRUNEI_DARUSSALAM", 0x02), ("SUBLANG_NEPALI_INDIA", 0x02), ("SUBLANG_NORWEGIAN_BOKMAL", 0x01), ("SUBLANG_NORWEGIAN_NYNORSK", 0x02), ("SUBLANG_PORTUGUESE", 0x02), ("SUBLANG_PORTUGUESE_BRAZILIAN", 0x01), ("SUBLANG_SERBIAN_LATIN", 0x02), ("SUBLANG_SERBIAN_CYRILLIC", 0x03), ("SUBLANG_SPANISH", 0x01), ("SUBLANG_SPANISH_MEXICAN", 0x02), ("SUBLANG_SPANISH_MODERN", 0x03), ("SUBLANG_SPANISH_GUATEMALA", 0x04), ("SUBLANG_SPANISH_COSTA_RICA", 0x05), ("SUBLANG_SPANISH_PANAMA", 0x06), ("SUBLANG_SPANISH_DOMINICAN_REPUBLIC", 0x07), ("SUBLANG_SPANISH_VENEZUELA", 0x08), ("SUBLANG_SPANISH_COLOMBIA", 0x09), ("SUBLANG_SPANISH_PERU", 0x0A), ("SUBLANG_SPANISH_ARGENTINA", 0x0B), ("SUBLANG_SPANISH_ECUADOR", 0x0C), ("SUBLANG_SPANISH_CHILE", 0x0D), ("SUBLANG_SPANISH_URUGUAY", 0x0E), ("SUBLANG_SPANISH_PARAGUAY", 0x0F), ("SUBLANG_SPANISH_BOLIVIA", 0x10), ("SUBLANG_SPANISH_EL_SALVADOR", 0x11), ("SUBLANG_SPANISH_HONDURAS", 0x12), ("SUBLANG_SPANISH_NICARAGUA", 0x13), ("SUBLANG_SPANISH_PUERTO_RICO", 0x14), ("SUBLANG_SWEDISH", 0x01), ("SUBLANG_SWEDISH_FINLAND", 0x02), ("SUBLANG_URDU_PAKISTAN", 0x01), ("SUBLANG_URDU_INDIA", 0x02), ("SUBLANG_UZBEK_LATIN", 0x01), ("SUBLANG_UZBEK_CYRILLIC", 0x02), ("SUBLANG_DUTCH_SURINAM", 0x03), ("SUBLANG_ROMANIAN", 0x01), ("SUBLANG_ROMANIAN_MOLDAVIA", 0x02), ("SUBLANG_RUSSIAN", 0x01), ("SUBLANG_RUSSIAN_MOLDAVIA", 0x02), ("SUBLANG_CROATIAN", 0x01), ("SUBLANG_LITHUANIAN_CLASSIC", 0x02), ("SUBLANG_GAELIC", 0x01), ("SUBLANG_GAELIC_SCOTTISH", 0x02), ("SUBLANG_GAELIC_MANX", 0x03), ] SUBLANG = two_way_dict(sublang) # Initialize the dictionary with all the name->value pairs SUBLANG = dict(sublang) # Now add all the value->name information, handling duplicates appropriately for sublang_name, sublang_value in sublang: if sublang_value in SUBLANG: SUBLANG[sublang_value].append(sublang_name) else: SUBLANG[sublang_value] = [sublang_name] # Resolve a sublang name given the main lang name # def get_sublang_name_for_lang(lang_value, sublang_value): lang_name = LANG.get(lang_value, "*unknown*") for sublang_name in SUBLANG.get(sublang_value, []): # if the main language is a substring of sublang's name, then # return that if lang_name in sublang_name: return sublang_name # otherwise return the first sublang name return SUBLANG.get(sublang_value, ["*unknown*"])[0] # Ange Albertini's code to process resources' strings # def parse_strings(data, counter, l): i = 0 error_count = 0 while i < len(data): data_slice = data[i : i + 2] if len(data_slice) < 2: break len_ = struct.unpack("<h", data_slice)[0] i += 2 if len_ != 0 and 0 <= len_ * 2 <= len(data): try: l[counter] = b(data[i : i + len_ * 2]).decode("utf-16le") except UnicodeDecodeError: error_count += 1 pass if error_count >= 3: break i += len_ * 2 counter += 1 def retrieve_flags(flag_dict, flag_filter): """Read the flags from a dictionary and return them in a usable form. Will return a list of (flag, value) for all flags in "flag_dict" matching the filter "flag_filter". """ return [ (flag, flag_dict[flag]) for flag in flag_dict.keys() if isinstance(flag, (str, bytes)) and flag.startswith(flag_filter) ] def set_flags(obj, flag_field, flags): """Will process the flags and set attributes in the object accordingly. The object "obj" will gain attributes named after the flags provided in "flags" and valued True/False, matching the results of applying each flag value from "flags" to flag_field. """ for flag, value in flags: if value & flag_field: obj.__dict__[flag] = True else: obj.__dict__[flag] = False def power_of_two(val): return val != 0 and (val & (val - 1)) == 0 def b(x): if isinstance(x, bytes): return x elif isinstance(x, bytearray): return bytes(x) else: return codecs.encode(x, "cp1252") class AddressSet(set): def __init__(self): super().__init__() self.min = None self.max = None def add(self, value): super().add(value) self.min = value if self.min is None else min(self.min, value) self.max = value if self.max is None else max(self.max, value) def diff(self): return 0 if self.min is None or self.max is None else self.max - self.min class UnicodeStringWrapperPostProcessor: """This class attempts to help the process of identifying strings that might be plain Unicode or Pascal. A list of strings will be wrapped on it with the hope the overlappings will help make the decision about their type.""" def __init__(self, pe, rva_ptr): self.pe = pe self.rva_ptr = rva_ptr self.string = None def get_rva(self): """Get the RVA of the string.""" return self.rva_ptr def __str__(self): """Return the escaped UTF-8 representation of the string.""" return self.decode("utf-8", "backslashreplace_") def decode(self, *args): if not self.string: return "" return self.string.decode(*args) def invalidate(self): """Make this instance None, to express it's no known string type.""" self = None def render_pascal_16(self): try: self.string = self.pe.get_string_u_at_rva( self.rva_ptr + 2, max_length=self.get_pascal_16_length() ) except PEFormatError: self.pe.get_warnings().append( "Failed rendering pascal string, " "attempting to read from RVA 0x{0:x}".format(self.rva_ptr + 2) ) def get_pascal_16_length(self): return self.__get_word_value_at_rva(self.rva_ptr) def __get_word_value_at_rva(self, rva): try: data = self.pe.get_data(rva, 2) except PEFormatError: return False if len(data) < 2: return False return struct.unpack("<H", data)[0] def ask_unicode_16(self, next_rva_ptr): """The next RVA is taken to be the one immediately following this one. Such RVA could indicate the natural end of the string and will be checked to see if there's a Unicode NULL character there. """ if self.__get_word_value_at_rva(next_rva_ptr - 2) == 0: self.length = next_rva_ptr - self.rva_ptr return True return False def render_unicode_16(self): try: self.string = self.pe.get_string_u_at_rva(self.rva_ptr) except PEFormatError: self.pe.get_warnings().append( "Failed rendering unicode string, " "attempting to read from RVA 0x{0:x}".format(self.rva_ptr) ) class PEFormatError(Exception): """Generic PE format error exception.""" def __init__(self, value): self.value = value def __str__(self): return repr(self.value) class Dump: """Convenience class for dumping the PE information.""" def __init__(self): self.text = [] def add_lines(self, txt, indent=0): """Adds a list of lines. The list can be indented with the optional argument 'indent'. """ for line in txt: self.add_line(line, indent) def add_line(self, txt, indent=0): """Adds a line. The line can be indented with the optional argument 'indent'. """ self.add(txt + "\n", indent) def add(self, txt, indent=0): """Adds some text, no newline will be appended. The text can be indented with the optional argument 'indent'. """ self.text.append("{0}{1}".format(" " * indent, txt)) def add_header(self, txt): """Adds a header element.""" self.add_line("{0}{1}{0}\n".format("-" * 10, txt)) def add_newline(self): """Adds a newline.""" self.text.append("\n") def get_text(self): """Get the text in its current state.""" return "".join("{0}".format(b) for b in self.text) STRUCT_SIZEOF_TYPES = { "x": 1, "c": 1, "b": 1, "B": 1, "h": 2, "H": 2, "i": 4, "I": 4, "l": 4, "L": 4, "f": 4, "q": 8, "Q": 8, "d": 8, "s": 1, } @lru_cache(maxsize=2048) def sizeof_type(t): count = 1 _t = t if t[0] in string.digits: # extract the count count = int("".join([d for d in t if d in string.digits])) _t = "".join([d for d in t if d not in string.digits]) return STRUCT_SIZEOF_TYPES[_t] * count @lru_cache(maxsize=2048, copy=True) def set_format(format): __format__ = "<" __unpacked_data_elms__ = [] __field_offsets__ = {} __keys__ = [] __format_length__ = 0 offset = 0 for elm in format: if "," in elm: elm_type, elm_name = elm.split(",", 1) __format__ += elm_type __unpacked_data_elms__.append(None) elm_names = elm_name.split(",") names = [] for elm_name in elm_names: if elm_name in __keys__: search_list = [x[: len(elm_name)] for x in __keys__] occ_count = search_list.count(elm_name) elm_name = "{0}_{1:d}".format(elm_name, occ_count) names.append(elm_name) __field_offsets__[elm_name] = offset offset += sizeof_type(elm_type) # Some PE header structures have unions on them, so a certain # value might have different names, so each key has a list of # all the possible members referring to the data. __keys__.append(names) __format_length__ = struct.calcsize(__format__) return ( __format__, __unpacked_data_elms__, __field_offsets__, __keys__, __format_length__, ) class Structure: """Prepare structure object to extract members from data. Format is a list containing definitions for the elements of the structure. """ def __init__(self, format, name=None, file_offset=None): # Format is forced little endian, for big endian non Intel platforms self.__format__ = "<" self.__keys__ = [] self.__format_length__ = 0 self.__field_offsets__ = {} self.__unpacked_data_elms__ = [] d = format[1] # need a tuple to be hashable in set_format using lru cache if not isinstance(d, tuple): d = tuple(d) ( self.__format__, self.__unpacked_data_elms__, self.__field_offsets__, self.__keys__, self.__format_length__, ) = set_format(d) self.__all_zeroes__ = False self.__file_offset__ = file_offset if name: self.name = name else: self.name = format[0] def __get_format__(self): return self.__format__ def get_field_absolute_offset(self, field_name): """Return the offset within the field for the requested field in the structure.""" return self.__file_offset__ + self.__field_offsets__[field_name] def get_field_relative_offset(self, field_name): """Return the offset within the structure for the requested field.""" return self.__field_offsets__[field_name] def get_file_offset(self): return self.__file_offset__ def set_file_offset(self, offset): self.__file_offset__ = offset def all_zeroes(self): """Returns true is the unpacked data is all zeros.""" return self.__all_zeroes__ |
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