Function at 0x401e00
Capabilities:
Copy file
Create process on windows
Create process suspended
Delete file
Write and execute a file
Write file on windows

Disassembly:
push 0xffffffffffffffff
push 0x42be28
mov eax, dword fs:[0]
push eax
sub esp, 0x64
push ebx
push ebp
push esi
push edi
mov eax, dword [0x43a05c]
xor eax, esp
push eax
lea eax, [esp + 0x78]
mov dword fs:[0], eax
mov eax, dword [0x44482c]
mov edx, dword [eax + 0xc]
mov ecx, 0x44482c
call edx
lea esi, [eax + 0x10]
mov dword [esp + 0x14], esi
xor ebp, ebp
mov dword [esp + 0x80], ebp
mov eax, dword [esi - 8]
mov ecx, 1
sub ecx, dword [esi - 4]
sub eax, 0x104
or eax, ecx
jge 0x401e6c
mov ecx, 0x104
lea eax, [esp + 0x14]
call fcn.00402e60
mov esi, dword [esp + 0x14]
push 0x104
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
mov eax, dword [esi - 8]
push eax
push esi
call fcn.00408e7c
add esp, 8
cmp eax, ebp
jl 0x402096
cmp eax, dword [esi - 8]
jg 0x402096
xor ecx, ecx
mov dword [esi - 0xc], eax
mov word [esi + eax*2], cx
mov eax, dword [esi - 0xc]
cmp eax, ebp
jl 0x401ec3
push str..back
push esi
call fcn.00408a99
add esp, 8
cmp eax, ebp
je 0x401ec3
sub eax, esi
sar eax, 1
jns 0x402059
lea edx, [esp + 0x14]
push edx
lea eax, [esp + 0x1c]
push eax
mov ebx, str..back
call fcn.00402a90
mov eax, dword [eax]
add esp, 8
push eax
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
mov eax, dword [esp + 0x18]
add eax, 0xfffffff0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x401f03
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea ecx, [esp + 0x14]
push ecx
lea edx, [esp + 0x1c]
push edx
mov ebx, str..back
call fcn.00402a90
mov eax, dword [eax]
add esp, 8
push ebp
push eax
push esi
call dword [sym.imp.KERNEL32.dll_CopyFileW]
mov eax, dword [esp + 0x18]
add eax, 0xfffffff0
lea ecx, [eax + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x401f45
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
lea ecx, [esp + 0x14]
push ecx
mov eax, 5
call fcn.00402fb0
mov esi, dword [esp + 0x14]
push ebp
push 0x80
push 3
push ebp
push ebp
push 0x40000000
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, eax
cmp edi, ebp
je 0x402059
cmp edi, 0xffffffff
je 0x402059
push 2
lea edx, [esp + 0x24]
push edx
push ebp
push edi
mov dword [esp + 0x2c], ebp
mov dword [esp + 0x30], ebp
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [esp + 0x1c], eax
call dword [sym.imp.KERNEL32.dll_GetTickCount]
push ebp
mov dword [esp + 0x18], eax
lea eax, [esp + 0x1c]
push eax
push 4
lea ecx, [esp + 0x20]
push ecx
push edi
mov dword [esp + 0x2c], ebp
call dword [sym.imp.KERNEL32.dll_WriteFile]
push edi
mov edi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call edi
push 0x40
lea edx, [esp + 0x3c]
push ebp
push edx
mov dword [esp + 0x40], ebp
call fcn.00409440
mov edx, dword [esp + 0x94]
add esp, 0xc
xor eax, eax
mov dword [esp + 0x28], eax
mov dword [esp + 0x2c], eax
mov dword [esp + 0x30], eax
lea eax, [esp + 0x24]
push eax
lea ecx, [esp + 0x38]
push ecx
push ebp
push ebp
push ebp
push ebp
push ebp
push ebp
push edx
push esi
mov dword [esp + 0x4c], ebp
call dword [sym.imp.KERNEL32.dll_CreateProcessW]
mov ebx, eax
mov eax, dword [esp + 0x28]
push eax
call edi
mov ecx, dword [esp + 0x24]
push ecx
call edi
lea eax, [esi - 0x10]
mov dword [esp + 0x80], 0xffffffff
lea edx, [eax + 0xc]
or ecx, 0xffffffff
lock xadd dword [edx], ecx
dec ecx
test ecx, ecx
jg 0x402043
mov ecx, dword [eax]
mov edx, dword [ecx]
push eax
mov eax, dword [edx + 4]
call eax
mov eax, ebx
mov ecx, dword [esp + 0x78]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x70
ret
add esi, 0xfffffff0
mov dword [esp + 0x80], 0xffffffff
lea ecx, [esi + 0xc]
or edx, 0xffffffff
lock xadd dword [ecx], edx
dec edx
test edx, edx
jg 0x402080
mov ecx, dword [esi]
mov eax, dword [ecx]
mov edx, dword [eax + 4]
push esi
call edx
xor eax, eax
mov ecx, dword [esp + 0x78]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x70
ret
push 0x80070057
call fcn.00403230
int3