Function at 0x406200
Capabilities:
Copy file
Create directory
Create process on windows
Delete file
Get common file path
Read file on windows
Set file attributes
Write and execute a file
Write file on windows

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push 0xffffffffffffffff
push 0x42fcd2
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x5dc
push ebx
push ebp
push esi
push edi
mov dword [esp + 0x20], 1
call fcn.004280ba
mov edx, dword [eax]
mov ecx, eax
call dword [edx + 0xc]
add eax, 0x10
mov dword [esp + 0x24], eax
xor ebp, ebp
mov dword [esp + 0x5f4], ebp
call fcn.004280ba
mov edx, dword [eax]
mov ecx, eax
call dword [edx + 0xc]
add eax, 0x10
mov dword [esp + 0x28], eax
mov byte [esp + 0x5f4], 1
call fcn.004280ba
mov edx, dword [eax]
mov ecx, eax
call dword [edx + 0xc]
add eax, 0x10
mov dword [esp + 0x1c], eax
mov byte [esp + 0x5f4], 2
call fcn.004280ba
mov edx, dword [eax]
mov ecx, eax
call dword [edx + 0xc]
add eax, 0x10
mov dword [esp + 0x14], eax
mov byte [esp + 0x5f4], 3
call fcn.004280ba
mov edx, dword [eax]
mov ecx, eax
call dword [edx + 0xc]
add eax, 0x10
mov dword [esp + 0x18], eax
mov byte [esp + 0x5f4], 4
call fcn.00404f60
mov dword [esp + 0x2c], eax
xor eax, eax
mov ecx, 0x3f
lea edi, [esp + 0x1a0]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
xor eax, eax
mov ecx, 0x3f
lea edi, [esp + 0x3a8]
rep stosd dword es:[edi], eax
stosw word es:[edi], ax
stosb byte es:[edi], al
push 0x104
lea eax, [esp + 0x9c]
push eax
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryA]
lea eax, [esp + 0x98]
lea ecx, [eax + 1]
mov dl, byte [eax]
inc eax
test dl, dl
jne 0x406301
sub eax, ecx
push eax
lea ecx, [esp + 0x9c]
push ecx
lea ecx, [esp + 0x2c]
call fcn.00405f60
lea eax, [esp + 0x98]
lea ecx, [eax + 1]
mov dl, byte [eax]
inc eax
test dl, dl
jne 0x406326
sub eax, ecx
push eax
lea edx, [esp + 0x9c]
push edx
lea ecx, [esp + 0x24]
call fcn.00405f60
push 9
push str.MFPTBULK
lea ecx, [esp + 0x24]
call fcn.00406000
mov eax, dword [esp + 0x1c]
push ebp
push eax
call dword [sym.imp.KERNEL32.dll_CreateDirectoryA]
sub esp, 0x1c
mov ecx, esp
mov dword [esp + 0x50], esp
push 0xb
mov esi, 0xf
mov dword [ecx + 0x18], esi
mov dword [ecx + 0x14], ebp
push str.DR_HIDE.EXE
mov byte [ecx + 4], 0
call fcn.004028e0
push 0x8a
sub esp, 0x1c
mov ecx, esp
mov dword [esp + 0x74], esp
push 0xa
mov dword [ecx + 0x18], esi
mov dword [ecx + 0x14], ebp
push str.BINARYFILE
mov byte [esp + 0x638], 5
mov byte [ecx + 4], 0
call fcn.004028e0
mov byte [esp + 0x630], 4
call fcn.00403670
add esp, 0x3c
lea ecx, [esp + 0x98]
push ecx
push 0x104
call dword [sym.imp.KERNEL32.dll_GetCurrentDirectoryA]
lea eax, [esp + 0x98]
lea ecx, [eax + 1]
lea ebx, [ebx]
mov dl, byte [eax]
inc eax
test dl, dl
jne 0x4063e0
sub eax, ecx
push eax
lea edx, [esp + 0x9c]
push edx
lea ecx, [esp + 0x30]
call fcn.00405f60
lea eax, [esp + 0x98]
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x406405
sub eax, edx
push eax
lea eax, [esp + 0x9c]
push eax
lea ecx, [esp + 0x1c]
call fcn.00405f60
push 0xc
push 0x431ff4
lea ecx, [esp + 0x1c]
call fcn.00406000
lea ecx, [esp + 0x1c]
push ecx
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xc
push 0x431ff4
lea ecx, [esp + 0x20]
call fcn.00406000
mov edx, dword [esp + 0x18]
mov esi, dword [esp + 0x14]
push ebp
push edx
push esi
call dword [sym.imp.KERNEL32.dll_CopyFileA]
test eax, eax
jne 0x406467
mov dword [esp + 0x20], ebp
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
cmp dword [0x441770], ebp
mov ebx, dword [sym.imp.KERNEL32.dll_Sleep]
je 0x4064ce
push 0x431fe8
call fcn.00404a20
add esp, 4
push 0x64
call ebx
lea eax, [esp + 0x50]
push eax
call dword [sym.imp.KERNEL32.dll_GetStartupInfoA]
lea ecx, [esp + 0x1c]
push ecx
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xc
push 0x431ff4
lea ecx, [esp + 0x20]
call fcn.00406000
mov ecx, dword [esp + 0x18]
lea edx, [esp + 0x40]
push edx
lea eax, [esp + 0x54]
push eax
push ebp
push ebp
push ebp
push ebp
push ebp
push ebp
push ebp
push ecx
jmp 0x406528
cmp dword [esp + 0x2c], 0xa28
jne 0x406536
push 0x431fe8
call fcn.00404a20
add esp, 4
push 0x64
call ebx
lea edx, [esp + 0x50]
push edx
call dword [sym.imp.KERNEL32.dll_GetStartupInfoA]
lea eax, [esp + 0x1c]
push eax
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xc
push 0x431ff4
lea ecx, [esp + 0x20]
call fcn.00406000
mov eax, dword [esp + 0x18]
lea ecx, [esp + 0x40]
push ecx
lea edx, [esp + 0x54]
push edx
push ebp
push ebp
push ebp
push ebp
push ebp
push ebp
push ebp
push eax
call dword [sym.imp.KERNEL32.dll_CreateProcessA]
test eax, eax
jne 0x406536
mov dword [esp + 0x20], ebp
lea ecx, [esp + 0x28]
push ecx
lea ecx, [esp + 0x18]
call fcn.00406090
push 0xb
push str.FABulk.inf
lea ecx, [esp + 0x1c]
call fcn.00406000
lea edx, [esp + 0x1c]
push edx
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xb
push str.FABulk.inf
lea ecx, [esp + 0x20]
call fcn.00406000
mov esi, dword [esp + 0x18]
lea eax, [esp + 0x4a8]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_FindFirstFileA]
mov ebp, dword [sym.imp.KERNEL32.dll_SetFileAttributesA]
mov edi, eax
cmp edi, 0xffffffff
je 0x4065a5
push 0x20
push esi
call ebp
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileA]
push edi
call dword [sym.imp.KERNEL32.dll_FindClose]
mov ecx, dword [esp + 0x14]
mov edi, dword [sym.imp.KERNEL32.dll_CopyFileA]
push 0
push esi
push ecx
call edi
test eax, eax
jne 0x4065bd
mov dword [esp + 0x20], eax
push 1
push esi
call ebp
push 0x64
call ebx
lea edx, [esp + 0x28]
push edx
lea ecx, [esp + 0x18]
call fcn.00406090
push 0xb
push str.FABulk.sys
lea ecx, [esp + 0x1c]
call fcn.00406000
lea eax, [esp + 0x24]
push eax
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0x1c
push str._system32driversFABulk.sys
lea ecx, [esp + 0x20]
call fcn.00406000
mov ecx, dword [esp + 0x18]
mov esi, dword [esp + 0x14]
xor ebx, ebx
push ebx
push ecx
push esi
call edi
test eax, eax
jne 0x406619
mov dword [esp + 0x20], ebx
lea edx, [esp + 0x1c]
push edx
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xb
push str.FABulk.sys
lea ecx, [esp + 0x20]
call fcn.00406000
mov eax, dword [esp + 0x18]
push ebx
push eax
push esi
call edi
test eax, eax
jne 0x406648
mov dword [esp + 0x20], ebx
lea ecx, [esp + 0x1c]
push ecx
lea ecx, [esp + 0x1c]
call fcn.00406090
push 0xb
push str._fabulk.ini
lea ecx, [esp + 0x20]
call fcn.00406000
mov esi, dword [esp + 0x18]
lea edx, [esp + 0x4a8]
push edx
push esi
call dword [sym.imp.KERNEL32.dll_FindFirstFileA]
cmp eax, 0xffffffff
mov dword [esp + 0x2c], eax
je 0x4067e9
lea eax, [esp + 0x1c]
push eax
lea ecx, [esp + 0x18]
call fcn.00406090
push 0xb
push str._fabulk.ini
lea ecx, [esp + 0x1c]
call fcn.00406000
mov ecx, dword [esp + 0x14]
push ebx
push ebx
push 3
push ebx
push 3
push 0xc0000000
push ecx
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov ebx, eax
xor eax, eax
mov ecx, 0x3f
lea edi, [esp + 0x1a0]
rep stosd dword es:[edi], eax
push 0
stosw word es:[edi], ax
lea edx, [esp + 0x34]
push edx
stosb byte es:[edi], al
push 0x40
lea eax, [esp + 0x1ac]
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x4067c9
mov eax, dword [esp + 0x30]
test eax, eax
je 0x4067c9
lea ecx, [esp + 0x1a0]
push str.INF_
push ecx
call fcn.00412dc0
mov esi, eax
push 0xd
push esi
call fcn.004130e0
sub eax, esi
sub eax, 4
push eax
add esi, 4
lea edx, [esp + 0x2b4]
push esi
push edx
call fcn.00412fa0
add esp, 0x1c
lea eax, [esp + 0x24]
push eax
lea ecx, [esp + 0x18]
call fcn.00406090
push str.Inf_
lea ecx, [esp + 0x18]
call fcn.004061c0
lea ecx, [esp + 0x2a0]
push ecx
lea ecx, [esp + 0x18]
call fcn.004061c0
mov esi, dword [esp + 0x14]
push 0x20
push esi
call ebp
mov edi, dword [sym.imp.KERNEL32.dll_DeleteFileA]
push esi
call edi
lea edx, [esp + 0x2a0]
push str..inf
push edx
call fcn.00412dc0
mov byte [eax + 1], 0x70
add esp, 8
lea eax, [esp + 0x24]
push eax
lea ecx, [esp + 0x18]
call fcn.00406090
push str.Inf_
lea ecx, [esp + 0x18]
call fcn.004061c0
lea ecx, [esp + 0x2a0]
push ecx
lea ecx, [esp + 0x18]
call fcn.004061c0
mov esi, dword [esp + 0x14]
push 0x20
push esi
call ebp
push esi
call edi
mov esi, dword [esp + 0x18]
jmp 0x4067cf
mov edi, dword [sym.imp.KERNEL32.dll_DeleteFileA]
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push 0x20
push esi
call ebp
push esi
call edi
mov edx, dword [esp + 0x2c]
push edx
call dword [sym.imp.KERNEL32.dll_FindClose]
push 0
push 0
push 4
push 0
push 3
push 0xc0000000
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
xor ebx, ebx
cmp edi, 0xffffffff
jne 0x40680c
mov dword [esp + 0x20], ebx
lea eax, [esp + 0x1c]
push eax
lea ecx, [esp + 0x18]
call fcn.00406090
push 0xb
push str.FABulk.inf
lea ecx, [esp + 0x1c]
call fcn.00406000
mov ebp, dword [esp + 0x14]
push ebx
push ebx
push 0xff
lea ecx, [esp + 0x3b4]
push ecx
push ebx
push 1
push ebx
push ebp
call dword [sym.imp.SETUPAPI.dll_SetupCopyOEMInfA]
test eax, eax
je 0x406896
lea edx, [esp + 0x3a8]
push edx
lea eax, [esp + 0x1a4]
push 0x431f78
push eax
call fcn.00412ec5
lea eax, [esp + 0x1ac]
add esp, 0xc
lea edx, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x406873
push ebx
lea ecx, [esp + 0x40]
push ecx
sub eax, edx
push eax
lea edx, [esp + 0x1ac]
push edx
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
test eax, eax
jne 0x40689a
mov dword [esp + 0x20], ebx
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
lea eax, [esi - 0x10]
mov byte [esp + 0x5f4], 3
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x4068c3
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
call dword [edx + 4]
lea eax, [ebp - 0x10]
mov byte [esp + 0x5f4], 2
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x4068e5
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
call dword [edx + 4]
mov eax, dword [esp + 0x1c]
add eax, 0xfffffff0
mov byte [esp + 0x5f4], 1
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x40690b
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
call dword [edx + 4]
mov eax, dword [esp + 0x28]
add eax, 0xfffffff0
mov byte [esp + 0x5f4], 0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x406931
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
call dword [edx + 4]
mov eax, dword [esp + 0x24]
add eax, 0xfffffff0
mov dword [esp + 0x5f4], 0xffffffff
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x40695a
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
call dword [edx + 4]
mov ecx, dword [esp + 0x5ec]
mov eax, dword [esp + 0x20]
pop edi
mov dword fs:[0], ecx
pop esi
pop ebp
pop ebx
mov esp, ebp
pop ebp
ret