Function at 0x44beb0
Capabilities:
Contain obfuscated stackstrings
Persist via default file association registry key
Query or enumerate registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x52309c
mov eax, dword fs:[0]
push eax
sub esp, 0x4b4
mov eax, dword [0x57c8b4]
xor eax, ebp
mov dword [ebp - 0x10], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
push 0x208
lea eax, [ebp - 0x29c]
mov dword [ebp - 0x4c0], 1
push 0
push eax
mov dword [ebp - 0x4bc], 0x104
call fcn.004a99f0
add esp, 0xc
mov dword [ebp - 0x94], 0x4f0053
xor eax, eax
mov dword [ebp - 0x90], 0x540046
mov edx, 0x70
mov dword [ebp - 0x8c], 0x410057
mov dword [ebp - 0x88], 0x450052
mov dword [ebp - 0x84], 0x4d005c
mov dword [ebp - 0x80], 0x630069
mov dword [ebp - 0x7c], 0x6f0072
mov dword [ebp - 0x78], 0x6f0073
mov dword [ebp - 0x74], 0x740066
mov dword [ebp - 0x70], 0x57005c
mov dword [ebp - 0x6c], 0x6e0069
mov dword [ebp - 0x68], 0x6f0064
mov dword [ebp - 0x64], 0x730077
mov dword [ebp - 0x60], 0x43005c
mov dword [ebp - 0x5c], 0x720075
mov dword [ebp - 0x58], 0x650072
mov dword [ebp - 0x54], 0x74006e
mov dword [ebp - 0x50], 0x650056
mov dword [ebp - 0x4c], 0x730072
mov dword [ebp - 0x48], 0x6f0069
mov dword [ebp - 0x44], 0x5c006e
mov dword [ebp - 0x40], 0x700041
mov dword [ebp - 0x3c], 0x200070
mov dword [ebp - 0x38], 0x610050
mov dword [ebp - 0x34], 0x680074
mov dword [ebp - 0x30], 0x5c0073
mov dword [ebp - 0x2c], 0x360033
mov dword [ebp - 0x28], 0x770030
mov dword [ebp - 0x24], 0x610070
mov dword [ebp - 0x20], 0x700070
mov dword [ebp - 0x1c], 0x65002e
mov dword [ebp - 0x18], 0x650078
mov word [ebp - 0x14], ax
call fcn.0040b790
mov ecx, eax
test ecx, ecx
je 0x44c373
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x4b0], eax
lea eax, [ebp - 0x94]
mov dword [ebp - 4], 0
push eax
lea ecx, [ebp - 0x4b0]
call fcn.0040ac20
test al, al
jne 0x44c067
lea ecx, [ebp - 0x94]
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x44c045
sub ecx, edx
lea eax, [ebp - 0x94]
sar ecx, 1
push ecx
push eax
lea ecx, [ebp - 0x4b0]
call fcn.0040a4c0
mov esi, dword [ebp - 0x4b0]
lea eax, [ebp - 0x4bc]
push eax
lea eax, [ebp - 0x29c]
mov dword [ebp - 4], 0xffffffff
push eax
lea eax, [ebp - 0x4c0]
push eax
push 0x535c84
push esi
push reloc.OLEAUT32.dll_SysReAllocString
call dword [sym.imp.SHLWAPI.dll_SHGetValueW]
test eax, eax
jne 0x44c0be
lea eax, [ebp - 0x29c]
lea edx, [eax + 2]
mov cx, word [eax]
add eax, 2
test cx, cx
jne 0x44c0a7
sub eax, edx
mov byte [ebp - 0x4a9], cl
sar eax, 1
jne 0x44c0c5
mov byte [ebp - 0x4a9], 1
or ebx, 0xffffffff
add esi, 0xfffffff0
mov eax, ebx
lock xadd dword [esi + 0xc], eax
dec eax
test eax, eax
jg 0x44c0df
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
cmp byte [ebp - 0x4a9], 0
jne 0x44c310
push str.birdwp.exe
lea eax, [ebp - 0x29c]
push eax
call dword [sym.imp.SHLWAPI.dll_PathAppendW]
push 0x20a
lea eax, [ebp - 0x4a8]
push 0
push eax
call fcn.004a99f0
add esp, 0xc
lea eax, [ebp - 0x4b8]
push eax
push 0x20019
push 0
push str.BirdWallpaper
push SysReAllocString
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExW]
test eax, eax
jne 0x44c17a
mov dword [ebp - 0x4b0], eax
lea eax, [ebp - 0x4b4]
push eax
lea eax, [ebp - 0x4a8]
mov dword [ebp - 0x4b4], 0x104
push eax
lea eax, [ebp - 0x4b0]
push eax
push 0
push str.URL_Protocol
push dword [ebp - 0x4b8]
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExW]
push dword [ebp - 0x4b8]
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
lea ecx, [ebp - 0x4a8]
lea eax, [ebp - 0x29c]
mov dx, word [eax]
cmp dx, word [ecx]
jne 0x44c1ac
test dx, dx
je 0x44c1a8
mov dx, word [eax + 2]
cmp dx, word [ecx + 2]
jne 0x44c1ac
add eax, 4
add ecx, 4
test dx, dx
jne 0x44c186
xor eax, eax
jmp 0x44c1b1
sbb eax, eax
or eax, 1
test eax, eax
je 0x44c36c
lea ecx, [ebp - 0x29c]
lea edx, [ecx + 2]
mov ax, word [ecx]
add ecx, 2
test ax, ax
jne 0x44c1c2
mov edi, dword [sym.imp.SHLWAPI.dll_SHSetValueW]
sub ecx, edx
sar ecx, 1
lea eax, [ecx + ecx]
push eax
lea eax, [ebp - 0x29c]
push eax
push 1
push str.URL_Protocol
push str.BirdWallpaper
push SysReAllocString
call edi
test eax, eax
jne 0x44c310
call fcn.0040b790
mov ecx, eax
test ecx, ecx
je 0x44c37d
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x4b0], eax
push str.BirdWallpaper
lea ecx, [ebp - 0x4b0]
mov dword [ebp - 4], 1
call fcn.0040ac20
test al, al
jne 0x44c247
push 0xd
push str.BirdWallpaper
lea ecx, [ebp - 0x4b0]
call fcn.0040a4c0
mov esi, dword [ebp - 0x4b0]
mov dword [ebp - 4], 2
mov eax, dword [esi - 0xc]
add eax, eax
push eax
push esi
push 1
push 0
push str.BirdWallpaper
push SysReAllocString
call edi
test eax, eax
jne 0x44c2f4
call fcn.0040b790
mov ecx, eax
test ecx, ecx
je 0x44c387
mov eax, dword [ecx]
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x4b4], eax
push 0x535c78
lea eax, [ebp - 0x29c]
mov byte [ebp - 4], 3
push eax
lea eax, [ebp - 0x4b4]
push str._s__s
push eax
call fcn.00408d00
mov edi, dword [ebp - 0x4b4]
add esp, 0x10
mov eax, dword [edi - 0xc]
add eax, eax
push eax
push edi
push 1
push 0
push str.BirdWallpaper_shellopencommand
push SysReAllocString
call dword [sym.imp.SHLWAPI.dll_SHSetValueW]
add edi, 0xfffffff0
mov byte [ebp - 4], 2
test eax, eax
mov eax, ebx
je 0x44c33e
lock xadd dword [edi + 0xc], eax
dec eax
test eax, eax
jg 0x44c2f4
mov ecx, dword [edi]
push edi
mov eax, dword [ecx]
call dword [eax + 4]
mov dword [ebp - 4], 0xffffffff
add esi, 0xfffffff0
lock xadd dword [esi + 0xc], ebx
dec ebx
test ebx, ebx
jg 0x44c310
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
xor esi, esi
push esi
push str._CInstaller::RegProtocol___result_d
call fcn.00446bb0
add esp, 8
mov eax, esi
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00490238
mov esp, ebp
pop ebp
ret
lock xadd dword [edi + 0xc], eax
dec eax
test eax, eax
jg 0x44c350
mov ecx, dword [edi]
push edi
mov eax, dword [ecx]
call dword [eax + 4]
mov dword [ebp - 4], 0xffffffff
add esi, 0xfffffff0
lock xadd dword [esi + 0xc], ebx
dec ebx
test ebx, ebx
jg 0x44c36c
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
mov esi, 1
jmp 0x44c312
push 0x80004005
call fcn.00408b70
push 0x80004005
call fcn.00408b70
push 0x80004005
call fcn.00408b70
int3