Function at 0x4901c2
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 0x4901f1
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4901fb
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00495e10
test eax, eax
pop ecx
je 0x490216
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00466f33
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.004720c0
test eax, eax
pop ecx
je 0x490231
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00466f33
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49024e
test ecx, 0x74000
jne 0x49024a
cmp dword [ebp - 0x24], eax
je 0x49024e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x4902a8
dec eax
je 0x490292
dec eax
je 0x49028d
call fcn.0047262c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00472619
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00467067
add esp, 0x14
jmp 0x49085a
mov dword [ebp - 8], edx
jmp 0x4902ab
test cl, 8
je 0x49029f
test ecx, 0x70000
jne 0x49028d
mov dword [ebp - 8], 0x40000000
jmp 0x4902ab
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4902ec
sub eax, ecx
je 0x4902e3
sub eax, ecx
je 0x4902da
sub eax, ecx
je 0x4902d1
sub eax, 0x40
jne 0x490267
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4902ef
mov dword [ebp - 0x10], 3
jmp 0x4902ef
mov dword [ebp - 0x10], 2
jmp 0x4902ef
mov dword [ebp - 0x10], 1
jmp 0x4902ef
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 0x490342
je 0x490339
cmp eax, ebx
je 0x490339
cmp eax, edi
je 0x490330
cmp eax, 0x200
je 0x4903b5
cmp eax, 0x300
jne 0x490267
mov dword [ebp - 0x14], 2
jmp 0x49035f
mov dword [ebp - 0x14], 4
jmp 0x49035f
mov dword [ebp - 0x14], 3
jmp 0x49035f
cmp eax, 0x500
je 0x490358
cmp eax, 0x600
je 0x4903b5
cmp eax, edx
jne 0x490267
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x490383
mov ecx, dword [0x4c9658]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x490383
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49039f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49039f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4903a8
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4903be
or dword [ebp - 0xc], 0x8000000
jmp 0x4903c9
mov dword [ebp - 0x14], 5
jmp 0x49035f
test al, 0x10
je 0x4903c9
or dword [ebp - 0xc], 0x10000000
call fcn.00487133
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4903ef
call fcn.0047262c
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00472619
mov dword [eax], 0x18
jmp 0x49047d
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 0x490489
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x490455
test byte [ebp + 0x10], 1
je 0x490455
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 0x490489
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ca3a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047263f
pop ecx
call fcn.00472619
mov eax, dword [eax]
jmp 0x490916
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4904da
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x4ca3a0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0047263f
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49047d
call fcn.00472619
mov dword [eax], 0xd
jmp 0x49047d
cmp eax, 2
jne 0x4904e5
or byte [ebp - 1], 0x40
jmp 0x4904ee
cmp eax, 3
jne 0x4904ee
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00486f02
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x4ca3a0]
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 + 0x4ca3a0]
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 0x4905c3
test cl, 0x80
je 0x490693
test byte [ebp + 0x10], 2
je 0x4905c3
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.004833cb
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x490582
call fcn.0047262c
cmp dword [eax], 0x83
je 0x4905c3
push dword [esi]
call fcn.00481083
jmp 0x49047c
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0048449d
add esp, 0xc
test eax, eax
jne 0x4905b3
cmp byte [ebp - 4], 0x1a
jne 0x4905b3
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00495a55
add esp, 0xc
cmp eax, edi
je 0x490576
push ebx
push ebx
push dword [esi]
call fcn.004833cb
add esp, 0xc
cmp eax, edi
je 0x490576
test byte [ebp - 1], 0x80
je 0x490693
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4905eb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4905e8
or dword [ebp + 0x10], edi
jmp 0x4905eb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x490638
cmp eax, 0x10000
je 0x490624
cmp eax, 0x14000
je 0x490624
cmp eax, 0x20000
je 0x490632
cmp eax, 0x24000
je 0x490632
cmp eax, 0x40000
je 0x49061e
cmp eax, 0x44000
jne 0x49063b
mov byte [ebp - 2], 1
jmp 0x49063b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x49063b
mov byte [ebp - 2], 2
jmp 0x49063b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x490693
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x490693
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x4907ed
cmp eax, 0x80000000
je 0x4907b4
cmp eax, ecx
jne 0x490693
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490693
cmp eax, 2
jbe 0x490895
cmp eax, 4
jbe 0x490786
cmp eax, 5
je 0x490895
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca3a0]
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 + 0x4ca3a0]
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 0x490705
test byte [ebp + 0x10], 8
je 0x490705
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca3a0]
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 0x490914
test byte [ebp + 0x10], 1
je 0x490914
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 0x4908fd
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0047263f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca3a0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.00486f7f
pop ecx
jmp 0x49047c
push 2
push ebx
push ebx
push dword [esi]
call fcn.00472a54
add esp, 0x10
or eax, edx
je 0x490895
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00472a54
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x490576
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0048449d
add esp, 0xc
cmp eax, 0xffffffff
je 0x490576
cmp eax, 2
je 0x490839
cmp eax, 3
jne 0x490887
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x490839
mov byte [ebp - 2], 1
jmp 0x490693
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x490693
cmp eax, 2
jbe 0x490895
cmp eax, 4
ja 0x49068a
push 2
push ebx
push ebx
push dword [esi]
call fcn.00472a54
add esp, 0x10
or eax, edx
je 0x490895
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00472a54
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x490693
jmp 0x490576
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x490861
push dword [esi]
call fcn.00481083
pop ecx
call fcn.00472619
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x490916
cmp eax, 0xfeff
jne 0x490887
push ebx
push 2
push dword [esi]
call fcn.004833cb
add esp, 0xc
cmp eax, 0xffffffff
je 0x490576
mov byte [ebp - 2], 2
jmp 0x490693
push ebx
push ebx
push dword [esi]
call fcn.004833cb
add esp, 0xc
jmp 0x49082b
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x4908b5
dec eax
jne 0x490693
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x4908c3
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.004817d6
add esp, 0xc
cmp eax, 0xffffffff
je 0x4908e9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x4908c3
jmp 0x490693
push dword [esi]
call fcn.00481083
pop ecx
call fcn.00472619
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x490916
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x4ca3a0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret