Function at 0x439766
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x34
push ebx
xor ebx, ebx
test byte [ebp + 0x10], 0x80
push esi
push edi
mov esi, eax
mov dword [ebp - 0x24], ebx
mov dword [ebp - 0x28], ebx
mov byte [ebp - 2], bl
mov dword [ebp - 0x34], 0xc
mov dword [ebp - 0x30], ebx
je 0x439795
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x43979f
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0043a904
test eax, eax
pop ecx
je 0x4397ba
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00426860
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0042b724
test eax, eax
pop ecx
je 0x4397d5
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00426860
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x4397f2
test ecx, 0x74000
jne 0x4397ee
cmp dword [ebp - 0x24], eax
je 0x4397f2
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x43984c
dec eax
je 0x439836
dec eax
je 0x439831
call fcn.0042a43b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042a428
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0042695c
add esp, 0x14
jmp 0x439dfe
mov dword [ebp - 8], edx
jmp 0x43984f
test cl, 8
je 0x439843
test ecx, 0x70000
jne 0x439831
mov dword [ebp - 8], 0x40000000
jmp 0x43984f
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x439890
sub eax, ecx
je 0x439887
sub eax, ecx
je 0x43987e
sub eax, ecx
je 0x439875
sub eax, 0x40
jne 0x43980b
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x439893
mov dword [ebp - 0x10], 3
jmp 0x439893
mov dword [ebp - 0x10], 2
jmp 0x439893
mov dword [ebp - 0x10], 1
jmp 0x439893
mov dword [ebp - 0x10], ebx
mov eax, dword [ebp + 0x10]
mov edx, 0x700
and eax, edx
mov ecx, 0x400
cmp eax, ecx
mov edi, 0x100
jg 0x4398e6
je 0x4398dd
cmp eax, ebx
je 0x4398dd
cmp eax, edi
je 0x4398d4
cmp eax, 0x200
je 0x439959
cmp eax, 0x300
jne 0x43980b
mov dword [ebp - 0x14], 2
jmp 0x439903
mov dword [ebp - 0x14], 4
jmp 0x439903
mov dword [ebp - 0x14], 3
jmp 0x439903
cmp eax, 0x500
je 0x4398fc
cmp eax, 0x600
je 0x439959
cmp eax, edx
jne 0x43980b
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x439927
mov ecx, dword [0x44de24]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x439927
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x439943
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x439943
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x43994c
or dword [ebp - 0xc], edi
test al, 0x20
je 0x439962
or dword [ebp - 0xc], 0x8000000
jmp 0x43996d
mov dword [ebp - 0x14], 5
jmp 0x439903
test al, 0x10
je 0x43996d
or dword [ebp - 0xc], 0x10000000
call fcn.004334d0
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x439993
call fcn.0042a43b
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0042a428
mov dword [eax], 0x18
jmp 0x439a21
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileA]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x34]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x439a2d
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x4399f9
test byte [ebp + 0x10], 1
je 0x4399f9
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push dword [ebp - 0x14]
push eax
push dword [ebp - 0x10]
push dword [ebp - 8]
push dword [ebp + 0xc]
call edi
cmp eax, 0xffffffff
mov dword [ebp - 0x1c], eax
jne 0x439a2d
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44fac0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0042a44e
pop ecx
call fcn.0042a428
mov eax, dword [eax]
jmp 0x439eba
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x439a7e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x44fac0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0042a44e
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x439a21
call fcn.0042a428
mov dword [eax], 0xd
jmp 0x439a21
cmp eax, 2
jne 0x439a89
or byte [ebp - 1], 0x40
jmp 0x439a92
cmp eax, 3
jne 0x439a92
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0043329f
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x44fac0]
pop ecx
pop ecx
mov cl, byte [ebp - 1]
or cl, 1
mov byte [edx + eax + 4], cl
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x44fac0]
lea eax, [edx + eax + 0x24]
and byte [eax], 0x80
mov byte [ebp - 3], cl
and byte [ebp - 3], 0x48
mov byte [ebp - 1], cl
jne 0x439b67
test cl, 0x80
je 0x439c37
test byte [ebp + 0x10], 2
je 0x439b67
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0043849b
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x439b26
call fcn.0042a43b
cmp dword [eax], 0x83
je 0x439b67
push dword [esi]
call fcn.004347ce
jmp 0x439a20
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00437101
add esp, 0xc
test eax, eax
jne 0x439b57
cmp byte [ebp - 4], 0x1a
jne 0x439b57
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0043a694
add esp, 0xc
cmp eax, edi
je 0x439b1a
push ebx
push ebx
push dword [esi]
call fcn.0043849b
add esp, 0xc
cmp eax, edi
je 0x439b1a
test byte [ebp - 1], 0x80
je 0x439c37
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x439b8f
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x439b8c
or dword [ebp + 0x10], edi
jmp 0x439b8f
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x439bdc
cmp eax, 0x10000
je 0x439bc8
cmp eax, 0x14000
je 0x439bc8
cmp eax, 0x20000
je 0x439bd6
cmp eax, 0x24000
je 0x439bd6
cmp eax, 0x40000
je 0x439bc2
cmp eax, 0x44000
jne 0x439bdf
mov byte [ebp - 2], 1
jmp 0x439bdf
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x439bdf
mov byte [ebp - 2], 2
jmp 0x439bdf
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x439c37
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x439c37
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x439d91
cmp eax, 0x80000000
je 0x439d58
cmp eax, ecx
jne 0x439c37
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x439c37
cmp eax, 2
jbe 0x439e39
cmp eax, 4
jbe 0x439d2a
cmp eax, 5
je 0x439e39
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44fac0]
lea eax, [ecx + eax + 0x24]
mov cl, byte [eax]
xor cl, byte [ebp - 2]
and cl, 0x7f
xor byte [eax], cl
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44fac0]
lea eax, [ecx + eax + 0x24]
mov ecx, dword [ebp + 0x10]
mov dl, byte [eax]
shr ecx, 0x10
shl cl, 7
and dl, 0x7f
or cl, dl
cmp byte [ebp - 3], bl
mov byte [eax], cl
jne 0x439ca9
test byte [ebp + 0x10], 8
je 0x439ca9
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44fac0]
lea eax, [ecx + eax + 4]
or byte [eax], 0x20
mov edi, dword [ebp - 8]
mov eax, 0xc0000000
mov ecx, edi
and ecx, eax
cmp ecx, eax
jne 0x439eb8
test byte [ebp + 0x10], 1
je 0x439eb8
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x34]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
jne 0x439ea1
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0042a44e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44fac0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0043331c
pop ecx
jmp 0x439a20
push 2
push ebx
push ebx
push dword [esi]
call fcn.004308be
add esp, 0x10
or eax, edx
je 0x439e39
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004308be
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x439b1a
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00437101
add esp, 0xc
cmp eax, 0xffffffff
je 0x439b1a
cmp eax, 2
je 0x439ddd
cmp eax, 3
jne 0x439e2b
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x439ddd
mov byte [ebp - 2], 1
jmp 0x439c37
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x439c37
cmp eax, 2
jbe 0x439e39
cmp eax, 4
ja 0x439c2e
push 2
push ebx
push ebx
push dword [esi]
call fcn.004308be
add esp, 0x10
or eax, edx
je 0x439e39
push ebx
push ebx
push ebx
push dword [esi]
call fcn.004308be
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x439c37
jmp 0x439b1a
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x439e05
push dword [esi]
call fcn.004347ce
pop ecx
call fcn.0042a428
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x439eba
cmp eax, 0xfeff
jne 0x439e2b
push ebx
push 2
push dword [esi]
call fcn.0043849b
add esp, 0xc
cmp eax, 0xffffffff
je 0x439b1a
mov byte [ebp - 2], 2
jmp 0x439c37
push ebx
push ebx
push dword [esi]
call fcn.0043849b
add esp, 0xc
jmp 0x439dcf
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x439e59
dec eax
jne 0x439c37
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x439e67
mov dword [ebp - 0x18], 0xbfbbef
mov dword [ebp - 0x14], 3
mov eax, dword [ebp - 0x14]
sub eax, edi
push eax
lea eax, [ebp + edi - 0x18]
push eax
push dword [esi]
call fcn.00431020
add esp, 0xc
cmp eax, 0xffffffff
je 0x439e8d
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x439e67
jmp 0x439c37
push dword [esi]
call fcn.004347ce
pop ecx
call fcn.0042a428
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x439eba
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x44fac0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret