Function at 0x40d690
Capabilities:
Delete registry key
Delete registry value
Encode data using xor
Query or enumerate registry value
Set registry value

Disassembly:
mov ecx, dword [0x42ba94]
sub esp, 0x38
mov edx, dword [ecx*4 + 0x42b848]
push ebx
test edx, edx
push esi
je 0x40d9ba
mov esi, dword [ecx*4 + 0x42b788]
xor eax, eax
test esi, esi
jbe 0x40d6d4
mov bl, byte [eax + edx]
mov cl, al
add cl, 0x41
xor bl, cl
mov byte [eax + edx], bl
mov ecx, dword [0x42ba94]
inc eax
cmp eax, dword [ecx*4 + 0x42b788]
jb 0x40d6b7
xor eax, eax
mov ax, word [edx]
add edx, 2
test eax, eax
jbe 0x40d9ba
push ebp
push edi
mov dword [esp + 0x28], eax
jmp 0x40d6f0
mov edx, dword [esp + 0x2c]
mov esi, dword [edx]
mov bl, byte [edx + 4]
add edx, 4
or ecx, 0xffffffff
inc edx
xor eax, eax
mov edi, edx
mov dword [esp + 0x18], edx
repne scasb al, byte es:[edi]
not ecx
dec ecx
lea edx, [edx + ecx + 1]
or ecx, 0xffffffff
mov edi, edx
mov dword [esp + 0x20], edx
repne scasb al, byte es:[edi]
not ecx
dec ecx
lea edx, [edx + ecx + 1]
or ecx, 0xffffffff
mov edi, edx
mov ebp, edx
repne scasb al, byte es:[edi]
not ecx
dec ecx
cmp esi, 0x14
lea edx, [edx + ecx + 1]
mov dword [esp + 0x2c], edx
jb 0x40d743
mov eax, dword [0x426048]
mov dword [esp + 0x1c], eax
jmp 0x40d74e
mov eax, dword [esi*4 + 0x426044]
mov dword [esp + 0x1c], eax
test bl, 4
je 0x40d7c3
mov esi, dword [esp + 0x20]
test esi, esi
je 0x40d795
cmp byte [esi], 0
je 0x40d795
mov edx, dword [esp + 0x18]
lea ecx, [esp + 0x10]
push ecx
push edx
push eax
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyA]
test eax, eax
jne 0x40d9a9
mov eax, dword [esp + 0x10]
push esi
push eax
call dword [sym.imp.ADVAPI32.dll_RegDeleteValueA]
mov ecx, dword [esp + 0x10]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
jmp 0x40d9a9
mov ecx, dword [0x42ba34]
test ecx, ecx
je 0x40d7b2
mov edx, dword [esp + 0x18]
push edx
push eax
call fcn.0040d5a0
add esp, 8
jmp 0x40d9a9
mov ecx, dword [esp + 0x18]
push ecx
push eax
call dword [sym.imp.ADVAPI32.dll_RegDeleteKeyA]
jmp 0x40d9a9
test bl, 1
je 0x40d857
mov ecx, dword [esp + 0x18]
lea edx, [esp + 0x10]
push edx
push 0x20019
push 0
push ecx
push eax
mov dword [esp + 0x44], 0
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x40d83e
test bl, 2
mov dword [esp + 0x14], 1
mov dword [esp + 0x24], 0x14
je 0x40d812
mov eax, 4
mov dword [esp + 0x14], eax
mov dword [esp + 0x24], eax
lea edx, [esp + 0x24]
lea eax, [esp + 0x30]
push edx
mov edx, dword [esp + 0x24]
lea ecx, [esp + 0x18]
push eax
mov eax, dword [esp + 0x18]
push ecx
push 0
push edx
push eax
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
mov ecx, dword [esp + 0x10]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
test bl, 2
je 0x40d84b
mov eax, dword [esp + 0x30]
test eax, eax
jmp 0x40d851
mov al, byte [esp + 0x30]
test al, al
jne 0x40d9a9
push 0xffdc
push ebp
push 0
call fcn.0040d270
mov esi, eax
add esp, 0xc
lea eax, [esi + esi + 1]
cmp eax, 4
ja 0x40d877
mov eax, 4
push eax
call fcn.0041a880
lea edx, [esi + 1]
mov dword [esp + 0x18], eax
push edx
push ebp
push eax
call fcn.0040d270
add esp, 0x10
mov edi, 1
test bl, 2
je 0x40d8b4
mov ebx, dword [esp + 0x14]
push ebx
call fcn.0041af7d
mov esi, 4
add esp, 4
mov dword [ebx], eax
mov edi, esi
jmp 0x40d961
mov eax, dword [esp + 0x14]
push 5
push str.:hex:
push eax
call fcn.0041aed0
add esp, 0xc
test eax, eax
jne 0x40d95d
mov ebp, dword [esp + 0x14]
mov esi, ebp
mov al, byte [ebp + 5]
lea edi, [ebp + 5]
test al, al
je 0x40d956
movsx ecx, al
push ecx
xor bl, bl
call fcn.0041adfe
add esp, 4
inc edi
cmp al, 0x30
jl 0x40d8fb
cmp al, 0x39
jg 0x40d8fb
sub al, 0x30
jmp 0x40d905
cmp al, 0x41
jl 0x40d907
cmp al, 0x46
jg 0x40d907
sub al, 0x37
mov bl, al
mov al, byte [edi]
test al, al
je 0x40d940
cmp al, 0x2c
je 0x40d940
movsx edx, al
push edx
call fcn.0041adfe
add esp, 4
inc edi
cmp al, 0x30
jl 0x40d930
cmp al, 0x39
jg 0x40d930
sub bl, 3
shl bl, 4
add bl, al
jmp 0x40d940
cmp al, 0x41
jl 0x40d940
cmp al, 0x46
jg 0x40d940
shl bl, 4
add bl, al
sub bl, 0x37
mov byte [esi], bl
inc esi
mov al, byte [edi]
cmp al, 0x20
je 0x40d94d
cmp al, 0x2c
jne 0x40d950
inc edi
jmp 0x40d943
mov al, byte [edi]
test al, al
jne 0x40d8e0
mov edi, 3
sub esi, ebp
mov ebx, dword [esp + 0x14]
mov ecx, dword [esp + 0x18]
mov edx, dword [esp + 0x1c]
lea eax, [esp + 0x10]
push eax
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegCreateKeyA]
test eax, eax
jne 0x40d9a0
cmp edi, 1
jne 0x40d980
inc esi
mov eax, dword [esp + 0x20]
mov ecx, dword [esp + 0x10]
push esi
push ebx
push edi
push 0
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
mov edx, dword [esp + 0x10]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
push ebx
call fcn.0041a9e3
add esp, 4
mov eax, dword [esp + 0x28]
dec eax
mov dword [esp + 0x28], eax
jne 0x40d6ec
pop edi
pop ebp
pop esi
pop ebx
add esp, 0x38
ret