Function at 0x420f50
Capabilities:
Check mutex on windows
Hide graphical window
Initialize winsock library

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push 0xffffffffffffffff
push 0x4c3369
mov eax, dword fs:[0]
push eax
sub esp, 0x1c8
mov eax, dword [0x4f4214]
xor eax, esp
mov dword [esp + 0x1c0], eax
push ebx
push esi
push edi
mov eax, dword [0x4f4214]
xor eax, esp
push eax
lea eax, [esp + 0x1d8]
mov dword fs:[0], eax
mov esi, dword [ebp + 0x10]
push str.12:40:53
push str.Jan_23_2015
push str.build_time:__s__s_n
call fcn.00487d90
add esp, 0xc
push str.8DEE8546_E04A_4211_BF1F_364B6AF42F59
xor ebx, ebx
push ebx
push ebx
call dword [sym.imp.KERNEL32.dll_CreateMutexW]
mov edi, eax
push str.Win7_UAC_DUODUO
push esi
mov dword [esp + 0x30], edi
call fcn.0049e0ac
add esp, 8
test eax, eax
jne 0x421079
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
jne 0x421079
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push 0x4d7114
push str.DuoDuoMainframe
call dword [sym.imp.USER32.dll_FindWindowW]
mov edi, eax
push edi
call dword [sym.imp.USER32.dll_IsWindow]
test eax, eax
je 0x421244
mov dword [esp + 0x1c], ebx
mov dword [esp + 0x18], ebx
mov dword [esp + 0x20], ebx
cmp word [esi], bx
je 0x421053
mov eax, esi
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
cmp cx, bx
jne 0x421024
lea ecx, [esp + 0x18]
push ecx
sub eax, edx
push ebx
sar eax, 1
push 0x4a
lea eax, [eax + eax + 2]
push edi
mov dword [esp + 0x2c], eax
mov dword [esp + 0x30], esi
call dword [sym.imp.USER32.dll_SendMessageW]
jmp 0x421244
push ebx
push 0xf120
push 0x112
push edi
call dword [sym.imp.USER32.dll_SendMessageW]
lea ecx, [esp + 0x18]
push ecx
push ebx
push 0x4a
push edi
call dword [sym.imp.USER32.dll_SendMessageW]
jmp 0x421244
push ebx
call dword [sym.imp.ole32.dll_CoInitialize]
lea edx, [esp + 0x3c]
push edx
push 0x202
call dword [sym.imp.WS2_32.dll_WSAStartup]
cmp eax, ebx
je 0x4210ac
push eax
push str.WSAStartup_failed_with_error:__d_n
call fcn.00487d90
add esp, 8
mov eax, 1
jmp 0x421246
push 0x4f9468
call dword [sym.imp.KERNEL32.dll_InitializeCriticalSection]
push ebx
call fcn.00488fa0
add esp, 4
call fcn.00433c20
mov ecx, str.UserAgent
call fcn.004346c0
push eax
call fcn.00487d60
add esp, 4
push ebx
lea eax, [esp + 0x30]
push eax
lea ecx, [esp + 0x2c]
push ecx
mov dword [esp + 0x38], 1
mov dword [esp + 0x3c], ebx
mov dword [esp + 0x40], ebx
mov dword [esp + 0x44], ebx
call dword [sym.imp.gdiplus.dll_GdiplusStartup]
call fcn.00438990
mov edx, dword [ebp + 8]
sub esp, 0x84
mov edi, esp
mov dword [0x4f9aa8], edx
mov dword [esp + 0x98], esp
call fcn.0044d6b0
mov dword [esp + 0x264], ebx
mov dword [esp + 0x264], 0xffffffff
call fcn.004214e0
add esp, 0x84
push 0x770
call fcn.0049caff
add esp, 4
mov dword [esp + 0x14], eax
mov dword [esp + 0x1e0], 1
cmp eax, ebx
je 0x421167
push esi
push eax
call fcn.00428ce0
mov edi, eax
jmp 0x421169
xor edi, edi
mov dword [esp + 0x1e0], 0xffffffff
cmp edi, ebx
je 0x421244
call fcn.00446250
mov esi, dword [sym.imp.USER32.dll_GetSystemMetrics]
push ebx
call esi
push 1
mov ebx, eax
call esi
push 0
push 0x2da
push 0x3e8
add eax, 0xfffffd26
sar eax, 1
push eax
add ebx, 0xfffffc18
sar ebx, 1
push ebx
push 0
push 0x96ca0000
push 0x4d7114
push 0
mov eax, edi
call fcn.00445bf0
mov ecx, edi
call fcn.004460c0
call fcn.00446250
mov eax, dword [edi + 4]
push 5
push eax
call dword [sym.imp.USER32.dll_ShowWindow]
push 0
xor edi, edi
call fcn.00424cb0
xor ecx, ecx
mov edx, eax
call fcn.00424690
add esp, 4
call fcn.0044fac0
push edi
call fcn.00424cb0
lea ecx, [edi + 1]
mov edx, eax
call fcn.00424690
add esp, 4
push 0x4f9468
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
push 0x4f9468
call dword [sym.imp.KERNEL32.dll_DeleteCriticalSection]
call dword [sym.imp.ole32.dll_CoUninitialize]
mov ecx, dword [esp + 0x28]
push ecx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edx, dword [esp + 0x24]
push edx
call dword [sym.imp.gdiplus.dll_GdiplusShutdown]
call fcn.00489120
call dword [sym.imp.WS2_32.dll_WSACleanup]
xor eax, eax
mov ecx, dword [esp + 0x1d8]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [esp + 0x1c0]
xor ecx, esp
call fcn.0049c72a
mov esp, ebp
pop ebp
ret 0x10