Function at 0x100faff0
Capabilities:
Get file size
Read file on windows
Write file on windows

Disassembly:
push 0xffffffffffffffff
push 0x101ebc9b
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x88
push ebx
push ebp
push esi
push edi
xor ebx, ebx
mov ecx, 0xf
xor eax, eax
lea edi, [esp + 0x59]
mov byte [esp + 0x58], bl
mov esi, dword [esp + 0xb4]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
lea eax, [esp + 0x38]
lea ecx, [esp + 0x4c]
push eax
lea edx, [esp + 0x24]
push ecx
mov ecx, dword [esi + 0x1f4]
push edx
mov edx, dword [esi + 0x1ec]
lea eax, [esp + 0x64]
push 0x40
push eax
mov eax, dword [esi + 0x20]
push ecx
push edx
push eax
mov dword [esp + 0x60], ebx
mov dword [esp + 0x6c], ebx
mov dword [esp + 0x58], ebx
mov dword [esp + 0x40], ebx
call fcn.100ff7a0
add esp, 0x20
cmp eax, ebx
mov dword [esp + 0x48], eax
je 0x100fb698
push eax
call fcn.1011c1d0
add esp, 4
cmp eax, ebx
mov dword [esp + 0x50], eax
je 0x100fb6b4
mov edx, dword [esp + 0xa8]
lea ecx, [esp + 0x24]
push ecx
push edx
mov dword [esp + 0x2c], ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov ecx, dword [esp + 0x24]
mov edi, dword [esp + 0xac]
push ecx
push eax
push edi
mov dword [esp + 0x20], eax
call fcn.100f2650
add esp, 0xc
test eax, eax
je 0x100fb6d0
mov edx, dword [esp + 0xbc]
mov eax, dword [esp + 0x4c]
mov ebp, dword [esp + 0xb0]
cmp eax, ebx
mov dword [edx], 1
je 0x100fb0ea
mov eax, dword [ebp + 0x24]
or al, 8
mov dword [ebp + 0x24], eax
cmp dword [esp + 0x38], ebx
je 0x100fb0f8
mov eax, dword [ebp + 0x24]
or al, 0x10
mov dword [ebp + 0x24], eax
cmp dword [esp + 0xa8], 0xffffffff
jne 0x100fb121
mov dword [0x10282d50], 1
mov dword [0x10282d54], 0x3737
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [0x10282d58], eax
mov eax, dword [esp + 0x14]
mov ecx, dword [esp + 0x24]
mov edx, dword [esp + 0x48]
mov dword [esi + 0x18], eax
mov dword [esi + 0x1c], ecx
mov ecx, dword [esp + 0x20]
lea eax, [esi + 0x28]
mov dword [esi + 0x24], edx
push eax
lea edx, [esp + 0x5c]
push ecx
push edx
mov dword [esi + 0x10], ebx
call fcn.100f1990
mov eax, dword [esp + 0xb4]
add esp, 0xc
mov dword [esi + 0x38], 0x3e0
mov dword [esi + 0x3c], ebx
push ebx
push ebx
push ebx
push eax
mov dword [esi + 0x40], ebx
mov dword [esi + 0x44], ebx
mov dword [esi + 0x378], ebx
mov dword [esi + 0x37c], ebx
mov dword [esi + 0x380], ebx
mov dword [esi + 0x384], ebx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
push ebx
push ebx
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp ebp, ebx
je 0x100fb1b9
mov edx, dword [0x1026bf24]
mov ecx, ebp
mov dword [ecx], edx
mov eax, dword [0x1026bf28]
mov dword [ecx + 4], eax
mov edx, dword [0x1026bf2c]
mov dword [ecx + 8], edx
mov eax, dword [0x1026bf30]
mov dword [ecx + 0xc], eax
cmp edi, 0xffffffff
je 0x100fb21b
cmp ebp, ebx
je 0x100fb21b
lea ecx, [esp + 0x14]
push ebx
push ecx
push 0x3e0
push ebp
push edi
mov dword [esp + 0x28], ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
jne 0x100fb231
mov dword [0x10282d50], 0xe
mov dword [0x10282d54], 0x2a09
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [0x10282d58], eax
mov dword [0x10282d50], 0x10
mov dword [0x10282d54], 0x2cb3
call dword [sym.imp.KERNEL32.dll_GetLastError]
jmp 0x100fb676
mov dword [0x10282d50], 1
mov dword [0x10282d54], 0x2a02
jmp 0x100fb1f1
mov eax, dword [esi + 0x18]
mov dword [esp + 0x2c], ebx
cmp eax, ebx
mov dword [esp + 0x10], ebx
jne 0x100fb256
cmp dword [esi + 0x1c], ebx
jne 0x100fb256
mov dword [esp + 0x2c], 1
mov dword [esp + 0x10], ebx
jmp 0x100fb4cc
mov ecx, dword [esi + 0x1c]
mov ebp, 0x10000
cmp ecx, ebx
jne 0x100fb268
cmp eax, ebp
jae 0x100fb268
mov ebp, eax
push ebp
call sub.MFC42u.DLL_operatornew
mov ecx, dword [esp + 0x54]
add esp, 4
mov dword [esp + 0x34], eax
mov edx, dword [ecx]
push ebp
call dword [edx + 8]
add eax, 4
push eax
mov dword [esp + 0x40], eax
call sub.MFC42u.DLL_operatornew
add esp, 4
mov dword [esp + 0x28], eax
mov dword [esp + 0x18], eax
mov eax, dword [esi + 0x38]
push ebx
push ebx
push eax
push edi
mov dword [esp + 0x24], ebx
mov dword [esp + 0x64], ebx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov edi, dword [esp + 0x34]
mov ecx, ebp
mov edx, ecx
xor eax, eax
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
push ebx
and ecx, 3
rep stosb byte es:[edi], al
mov ecx, dword [esp + 0x40]
mov edi, dword [esp + 0x1c]
mov edx, ecx
xor eax, eax
shr ecx, 2
rep stosd dword es:[edi], eax
mov ecx, edx
and ecx, 3
rep stosb byte es:[edi], al
mov edi, dword [esp + 0x38]
mov ecx, dword [esp + 0xac]
lea eax, [esp + 0x34]
mov dword [esp + 0x34], ebx
push eax
push ebp
push edi
push ecx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x100fb3bb
mov eax, dword [esp + 0x30]
cmp eax, ebx
je 0x100fb3d4
lea edx, [esp + 0x54]
lea ecx, [esp + 0x14]
push edx
lea edx, [esp + 0x20]
push ecx
push edx
lea ecx, [esp + 0x48]
lea edx, [esp + 0x24]
push ecx
push edx
mov edx, dword [esp + 0x64]
push eax
mov eax, dword [esp + 0x38]
push edi
lea ecx, [esp + 0x74]
push eax
push ecx
push edx
mov dword [esp + 0x44], ebx
call fcn.100fa290
add esp, 0x28
cmp eax, ebx
jne 0x100fb3e1
mov ecx, dword [esp + 0x18]
mov eax, dword [esp + 0x1c]
add ecx, 4
push eax
push ecx
call fcn.100f1970
mov edx, dword [esp + 0x20]
add esp, 8
mov dword [edx], eax
mov ecx, dword [esp + 0x1c]
mov edx, dword [esp + 0x18]
lea eax, [esp + 0x44]
push ebx
add ecx, 4
push eax
mov eax, dword [esp + 0xb4]
push ecx
push edx
push eax
mov dword [esp + 0x58], ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
je 0x100fb452
mov ecx, dword [esp + 0x1c]
mov eax, dword [esp + 0x44]
add ecx, 4
cmp eax, ecx
jb 0x100fb468
mov eax, dword [esi + 0x3c]
cmp eax, ebx
jne 0x100fb3af
mov dword [esi + 0x40], ecx
inc eax
mov dword [esi + 0x44], ecx
mov dword [esi + 0x3c], eax
jmp 0x100fb2ac
mov dword [0x10282d50], 0xd
mov dword [0x10282d54], 0x2cdd
jmp 0x100fb47c
mov dword [esp + 0x2c], 1
jmp 0x100fb48f
jge 0x100fb43c
push 0x102747b8
lea ecx, [esp + 0x14]
call fcn.10077a80
mov edx, dword [esp + 0x20]
mov eax, dword [esp + 0x30]
mov ecx, dword [esp + 0x48]
push 0x2cf0
push edx
push eax
push ecx
lea edx, [esp + 0x20]
push str.Error:_Encrypt_Data_Failed__File__Algrithm_d__DataLen_lu_KeyLen_lu__LINE_d
push edx
mov dword [esp + 0xb8], ebx
call fcn.1007b320
mov eax, dword [esp + 0x28]
push eax
call fcn.1011c760
add esp, 0x1c
lea ecx, [esp + 0x10]
mov dword [esp + 0xa0], 0xffffffff
call fcn.10078300
mov dword [0x10282d50], 0x11
mov dword [0x10282d54], 0x2cf4
jmp 0x100fb47c
mov dword [0x10282d50], 0xe
mov dword [0x10282d54], 0x2cfe
jmp 0x100fb47c
mov dword [0x10282d50], 0xe
mov dword [0x10282d54], 0x2d05
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [0x10282d58], eax
mov dword [esp + 0x10], 1
cmp edi, ebx
je 0x100fb49c
push edi
call sub.MFC42u.DLL_operatordelete
add esp, 4
mov eax, dword [esp + 0x28]
cmp eax, ebx
je 0x100fb4ad
push eax
call sub.MFC42u.DLL_operatordelete
add esp, 4
mov eax, dword [esp + 0x14]
cmp eax, ebx
je 0x100fb4be
push eax
call sub.MFC42u.DLL_operatordelete
add esp, 4
mov edi, dword [esp + 0xac]
mov ebp, dword [esp + 0xb0]
push edi
call dword [sym.imp.KERNEL32.dll_SetEndOfFile]
cmp dword [esp + 0x2c], ebx
je 0x100fb67b
cmp dword [esp + 0x10], ebx
jne 0x100fb67b
mov eax, dword [esp + 0xb8]
mov dword [esp + 0x40], 1
cmp eax, ebx
je 0x100fb5e5
mov eax, dword [esi + 0x3c]
cmp eax, ebx
jne 0x100fb517
mov dword [esi + 0x378], 0x3e0
mov dword [esi + 0x37c], ebx
jmp 0x100fb547
mov ecx, dword [esi + 0x40]
push ebx
dec eax
push ecx
push ebx
push eax
call fcn.10071490
mov ecx, dword [esi + 0x44]
xor edi, edi
add eax, ecx
adc edx, edi
mov edi, dword [esp + 0xac]
add eax, 0x3e0
adc edx, ebx
mov dword [esi + 0x378], eax
mov dword [esi + 0x37c], edx
mov edx, dword [esp + 0xb8]
mov eax, dword [ebp + 0x20]
push edx
push esi
push eax
push edi
call fcn.100f4620
add esp, 0x10
test eax, eax
je 0x100fb5c6
mov ecx, dword [esp + 0xb8]
push ecx
call fcn.10101b00
add esp, 4
test eax, eax
mov eax, dword [ebp + 0x24]
je 0x100fb57c
and al, 0xdf
jmp 0x100fb57e
or al, 0x20
mov edx, dword [esp + 0xb8]
mov ecx, eax
or ecx, 4
mov dword [ebp + 0x24], eax
push edx
mov dword [ebp + 0x24], ecx
call fcn.100f1af0
add esp, 4
test eax, eax
jne 0x100fb5a5
mov eax, dword [ebp + 0x24]
or al, 1
mov dword [ebp + 0x24], eax
mov eax, dword [esp + 0xb8]
add eax, 0x10
push eax
call fcn.100f1af0
add esp, 4
test eax, eax
jne 0x100fb5e5
mov eax, dword [ebp + 0x24]
or al, 2
mov dword [ebp + 0x24], eax
jmp 0x100fb5e5
mov dword [0x10282d50], 0x10
mov dword [0x10282d54], 0x2d4c
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [0x10282d58], eax
mov edx, dword [0x1026bf10]
mov ecx, ebp
push esi
push ebp
mov dword [ecx], edx
mov eax, dword [0x1026bf14]
mov dword [ecx + 4], eax
mov edx, dword [0x1026bf18]
mov dword [ecx + 8], edx
mov eax, dword [0x1026bf1c]
mov dword [ecx + 0xc], eax
call fcn.100f9a60
add esp, 8
test eax, eax
je 0x100fb6ec
push ebx
push ebx
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
lea ecx, [esp + 0x28]
push ebx
push ecx
push 0x3e0
push ebp
push edi
mov dword [esp + 0x3c], ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
jne 0x100fb67b
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [0x10282d50], 0xe
mov dword [0x10282d54], 0x2a09
call esi
mov dword [0x10282d58], eax
mov dword [0x10282d50], 0x10
mov dword [0x10282d54], 0x2d5e
call esi
mov dword [0x10282d58], eax
mov ecx, dword [esp + 0x98]
mov eax, dword [esp + 0x40]
pop edi
pop esi
pop ebp
pop ebx
mov dword fs:[0], ecx
add esp, 0x94
ret
mov dword [0x10282d50], 0xb
mov dword [0x10282d54], 0x2c73
call dword [sym.imp.KERNEL32.dll_GetLastError]
jmp 0x100fb676
mov dword [0x10282d50], 0xc
mov dword [0x10282d54], 0x2c7a
call dword [sym.imp.KERNEL32.dll_GetLastError]
jmp 0x100fb676
mov dword [0x10282d50], 0x25
mov dword [0x10282d54], 0x2c89
call dword [sym.imp.KERNEL32.dll_GetLastError]
jmp 0x100fb676
mov dword [0x10282d50], 0x13
mov dword [0x10282d54], 0x2d56
call dword [sym.imp.KERNEL32.dll_GetLastError]
jmp 0x100fb676