Function at 0x40cf50
Capabilities:
Persist via default file association registry key
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x43175b
mov eax, dword fs:[0]
push eax
sub esp, 0xbc
mov eax, dword [0x43f200]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
lea eax, [ebp - 0xc0]
mov dword [ebp - 0xc0], 0
push eax
push 0xf003f
push 0
push 0x432d0c
push 0x80000000
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
mov esi, dword [sym.imp.ADVAPI32.dll_RegCreateKeyExW]
test eax, eax
jne 0x40cfbc
mov byte [0x440352], 1
mov eax, str.Found_previous_registry_entry__HKCS__1_for_Steam
jmp 0x40cfeb
push 0
lea eax, [ebp - 0xc0]
push eax
push 0
push 0xf003f
push 0
push 0
push 0
push 0x432d0c
push 0x80000000
call esi
test eax, eax
jne 0x40d24e
mov eax, str.Created_new_registry_entry__HKCS__1_for_Steam
push eax
call fcn.00405890
add esp, 4
mov dword [ebp - 0xc4], 0
lea eax, [ebp - 0xc4]
push eax
push 0xf003f
push 0
push str.steamShellOpenCommand
push 0x80000000
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
test eax, eax
jne 0x40d05c
push 0x43f0e4
push 0x44c358
lea eax, [ebp - 0xc8]
mov byte [0x440353], 1
push eax
push 0
push 0x432de0
push dword [ebp - 0xc4]
mov dword [ebp - 0xc8], 1
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExW]
push str.Found_previous_registry_entry__HKCS__2_for_Steam
jmp 0x40d08b
push 0
lea eax, [ebp - 0xc4]
push eax
push 0
push 0xf003f
push 0
push 0
push 0
push str.steamShellOpenCommand
push 0x80000000
call esi
test eax, eax
jne 0x40d160
push str.Created_new_registry_entry__HKCS__2_for_Steam
call fcn.00405890
mov esi, dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
add esp, 4
push 0x13
push str.URL:steam_protocol
push 1
push 0
push 0x4323a0
push dword [ebp - 0xc0]
call esi
push 1
push 0x4323a0
push 1
push 0
push str.URL_Protocol
push dword [ebp - 0xc0]
call esi
push dword [ebp - 0xc0]
mov esi, dword [sym.imp.ADVAPI32.dll_RegCloseKey]
call esi
call fcn.00405a70
mov ecx, 0x7ffffffe
mov edx, dword [eax + 0x10]
sub ecx, edx
cmp ecx, 0x11
jb 0x40d343
cmp dword [eax + 0x14], 7
mov ecx, eax
jbe 0x40d0f9
mov ecx, dword [eax]
push 0x11
push str.steam.exe______1_
push edx
push ecx
push eax
push dword [ebp - 0xc8]
lea ecx, [ebp - 0x88]
call fcn.004080c0
mov eax, dword [ebp - 0x78]
cmp dword [ebp - 0x74], 7
lea ecx, [eax*2 + 2]
push ecx
lea eax, [ebp - 0x88]
cmova eax, dword [ebp - 0x88]
push eax
push 1
push 0
push 0x432de0
push dword [ebp - 0xc4]
call dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
push dword [ebp - 0xc4]
call esi
lea ecx, [ebp - 0x88]
call fcn.00402600
mov al, 1
jmp 0x40d329
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
lea eax, [ebp - 0x13]
push eax
call fcn.00406ee0
add esp, 8
lea ecx, [ebp - 0xb9]
push ecx
lea ecx, [ebp - 0x13]
push ecx
push eax
lea ecx, [ebp - 0xa0]
call fcn.004063c0
push 0x2c
push str.Unable_to_patch_Registry__HKCS__2__error_
push 0
lea ecx, [ebp - 0xa0]
mov dword [ebp - 4], 2
call fcn.0040c6f0
mov dword [ebp - 0x48], 0
xorps xmm0, xmm0
movups xmmword [ebp - 0x58], xmm0
mov dword [ebp - 0x44], 0
movups xmm0, xmmword [eax]
movups xmmword [ebp - 0x58], xmm0
movq xmm0, qword [eax + 0x10]
movq qword [ebp - 0x48], xmm0
mov dword [eax + 0x10], 0
mov dword [eax + 0x14], 0xf
mov byte [eax], 0
lea eax, [ebp - 0x58]
mov byte [ebp - 4], 3
push eax
call fcn.00405890
mov ecx, dword [ebp - 0x44]
add esp, 4
cmp ecx, 0xf
jbe 0x40d220
mov edx, dword [ebp - 0x58]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x40d216
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x40d348
push ecx
push edx
call fcn.004131e7
add esp, 8
lea ecx, [ebp - 0xa0]
mov dword [ebp - 0x48], 0
mov dword [ebp - 0x44], 0xf
mov byte [ebp - 0x58], 0
call fcn.004025b0
push dword [ebp - 0xc0]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
jmp 0x40d327
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
lea eax, [ebp - 0x2b]
push eax
call fcn.00406ee0
add esp, 8
lea ecx, [ebp - 0xb9]
push ecx
lea ecx, [ebp - 0x2b]
push ecx
push eax
lea ecx, [ebp - 0xb8]
call fcn.004063c0
push 0x2c
push str.Unable_to_patch_Registry__HKCS__1__error_
push 0
lea ecx, [ebp - 0xb8]
mov dword [ebp - 4], 0
call fcn.0040c6f0
mov dword [ebp - 0x60], 0
xorps xmm0, xmm0
movups xmmword [ebp - 0x70], xmm0
mov dword [ebp - 0x5c], 0
movups xmm0, xmmword [eax]
movups xmmword [ebp - 0x70], xmm0
movq xmm0, qword [eax + 0x10]
movq qword [ebp - 0x60], xmm0
mov dword [eax + 0x10], 0
mov dword [eax + 0x14], 0xf
mov byte [eax], 0
lea eax, [ebp - 0x70]
mov byte [ebp - 4], 1
push eax
call fcn.00405890
mov ecx, dword [ebp - 0x5c]
add esp, 4
cmp ecx, 0xf
jbe 0x40d30a
mov edx, dword [ebp - 0x70]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x40d300
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x40d34d
push ecx
push edx
call fcn.004131e7
add esp, 8
lea ecx, [ebp - 0xb8]
mov dword [ebp - 0x60], 0
mov dword [ebp - 0x5c], 0xf
mov byte [ebp - 0x70], 0
call fcn.004025b0
xor al, al
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.004131fa
mov esp, ebp
pop ebp
ret
call fcn.004039f0
call fcn.0041805f
call fcn.0041805f
int3