Function at 0x595283
Capabilities:
Encrypt data using speck

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x38
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 - 0x38], 0xc
mov dword [ebp - 0x34], ebx
je 0x5952b2
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x5952bc
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.005988df
test eax, eax
pop ecx
je 0x5952d7
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00578ed3
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0057f9a1
test eax, eax
pop ecx
je 0x5952f2
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00578ed3
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x59530f
test ecx, 0x74000
jne 0x59530b
cmp dword [ebp - 0x24], eax
je 0x59530f
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x595369
dec eax
je 0x595353
dec eax
je 0x59534e
call fcn.00582025
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00582012
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00578fcf
add esp, 0x14
jmp 0x59591c
mov dword [ebp - 8], edx
jmp 0x59536c
test cl, 8
je 0x595360
test ecx, 0x70000
jne 0x59534e
mov dword [ebp - 8], 0x40000000
jmp 0x59536c
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x5953ad
sub eax, ecx
je 0x5953a4
sub eax, ecx
je 0x59539b
sub eax, ecx
je 0x595392
sub eax, 0x40
jne 0x595328
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x5953b0
mov dword [ebp - 0x10], 3
jmp 0x5953b0
mov dword [ebp - 0x10], 2
jmp 0x5953b0
mov dword [ebp - 0x10], 1
jmp 0x5953b0
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 0x595403
je 0x5953fa
cmp eax, ebx
je 0x5953fa
cmp eax, edi
je 0x5953f1
cmp eax, 0x200
je 0x595476
cmp eax, 0x300
jne 0x595328
mov dword [ebp - 0x14], 2
jmp 0x595420
mov dword [ebp - 0x14], 4
jmp 0x595420
mov dword [ebp - 0x14], 3
jmp 0x595420
cmp eax, 0x500
je 0x595419
cmp eax, 0x600
je 0x595476
cmp eax, edx
jne 0x595328
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x595444
mov ecx, dword [0x5fcfac]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x595444
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x595460
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x595460
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x595469
or dword [ebp - 0xc], edi
test al, 0x20
je 0x59547f
or dword [ebp - 0xc], 0x8000000
jmp 0x59548a
mov dword [ebp - 0x14], 5
jmp 0x595420
test al, 0x10
je 0x59548a
or dword [ebp - 0xc], 0x10000000
call fcn.00595cf8
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x5954b0
call fcn.00582025
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00582012
mov dword [eax], 0x18
jmp 0x59553e
mov eax, dword [ebp + 8]
mov edi, dword [sym.imp.KERNEL32.dll_CreateFileW]
push ebx
push dword [ebp - 0xc]
mov dword [eax], 1
push dword [ebp - 0x14]
lea eax, [ebp - 0x38]
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 0x59554a
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x595516
test byte [ebp + 0x10], 1
je 0x595516
and dword [ebp - 8], 0x7fffffff
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
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 0x59554a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x604020]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00582038
pop ecx
call fcn.00582012
mov eax, dword [eax]
jmp 0x5959d8
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x59559b
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x604020]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00582038
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x59553e
call fcn.00582012
mov dword [eax], 0xd
jmp 0x59553e
cmp eax, 2
jne 0x5955a6
or byte [ebp - 1], 0x40
jmp 0x5955af
cmp eax, 3
jne 0x5955af
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00595ac7
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x604020]
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 + 0x604020]
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 0x595685
test cl, 0x80
je 0x595755
test byte [ebp + 0x10], 2
je 0x595685
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0058f9ca
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x595643
call fcn.00582025
cmp dword [eax], 0x83
je 0x595685
push dword [esi]
call fcn.0058a34f
jmp 0x59553d
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.0058f30c
add esp, 0xc
test eax, eax
jne 0x595675
cmp word [ebp - 0x2c], 0x1a
jne 0x595675
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0059866f
add esp, 0xc
cmp eax, edi
je 0x595637
push ebx
push ebx
push dword [esi]
call fcn.0058f9ca
add esp, 0xc
cmp eax, edi
je 0x595637
test byte [ebp - 1], 0x80
je 0x595755
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x5956ad
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x5956aa
or dword [ebp + 0x10], edi
jmp 0x5956ad
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x5956fa
cmp eax, 0x10000
je 0x5956e6
cmp eax, 0x14000
je 0x5956e6
cmp eax, 0x20000
je 0x5956f4
cmp eax, 0x24000
je 0x5956f4
cmp eax, 0x40000
je 0x5956e0
cmp eax, 0x44000
jne 0x5956fd
mov byte [ebp - 2], 1
jmp 0x5956fd
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x5956fd
mov byte [ebp - 2], 2
jmp 0x5956fd
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x595755
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x595755
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x5958af
cmp eax, 0x80000000
je 0x595876
cmp eax, ecx
jne 0x595755
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x595755
cmp eax, 2
jbe 0x595957
cmp eax, 4
jbe 0x595848
cmp eax, 5
je 0x595957
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x604020]
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 + 0x604020]
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 0x5957c7
test byte [ebp + 0x10], 8
je 0x5957c7
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x604020]
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 0x5959d6
test byte [ebp + 0x10], 1
je 0x5959d6
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebx
push dword [ebp - 0xc]
lea eax, [ebp - 0x38]
push 3
push eax
push dword [ebp - 0x10]
and edi, 0x7fffffff
push edi
push dword [ebp + 0xc]
call dword [sym.imp.KERNEL32.dll_CreateFileW]
cmp eax, 0xffffffff
jne 0x5959bf
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00582038
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x604020]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00595b44
pop ecx
jmp 0x59553d
push 2
push ebx
push ebx
push dword [esi]
call fcn.00594486
add esp, 0x10
or eax, edx
je 0x595957
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00594486
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x595637
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0058f30c
add esp, 0xc
cmp eax, 0xffffffff
je 0x595637
cmp eax, 2
je 0x5958fb
cmp eax, 3
jne 0x595949
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x5958fb
mov byte [ebp - 2], 1
jmp 0x595755
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x595755
cmp eax, 2
jbe 0x595957
cmp eax, 4
ja 0x59574c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00594486
add esp, 0x10
or eax, edx
je 0x595957
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00594486
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x595755
jmp 0x595637
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x595923
push dword [esi]
call fcn.0058a34f
pop ecx
call fcn.00582012
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x5959d8
cmp eax, 0xfeff
jne 0x595949
push ebx
push 2
push dword [esi]
call fcn.0058f9ca
add esp, 0xc
cmp eax, 0xffffffff
je 0x595637
mov byte [ebp - 2], 2
jmp 0x595755
push ebx
push ebx
push dword [esi]
call fcn.0058f9ca
add esp, 0xc
jmp 0x5958ed
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x595977
dec eax
jne 0x595755
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x595985
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.005900de
add esp, 0xc
cmp eax, 0xffffffff
je 0x5959ab
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x595985
jmp 0x595755
push dword [esi]
call fcn.0058a34f
pop ecx
call fcn.00582012
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x5959d8
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x604020]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret