Function at 0x4975c0
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 0x4975ef
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x4975f9
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0049ff33
test eax, eax
pop ecx
je 0x497614
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00482e44
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0048515f
test eax, eax
pop ecx
je 0x49762f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00482e44
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x49764c
test ecx, 0x74000
jne 0x497648
cmp dword [ebp - 0x24], eax
je 0x49764c
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x4976a6
dec eax
je 0x497690
dec eax
je 0x49768b
call fcn.00485933
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00485920
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.00482f78
add esp, 0x14
jmp 0x497c58
mov dword [ebp - 8], edx
jmp 0x4976a9
test cl, 8
je 0x49769d
test ecx, 0x70000
jne 0x49768b
mov dword [ebp - 8], 0x40000000
jmp 0x4976a9
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x4976ea
sub eax, ecx
je 0x4976e1
sub eax, ecx
je 0x4976d8
sub eax, ecx
je 0x4976cf
sub eax, 0x40
jne 0x497665
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x4976ed
mov dword [ebp - 0x10], 3
jmp 0x4976ed
mov dword [ebp - 0x10], 2
jmp 0x4976ed
mov dword [ebp - 0x10], 1
jmp 0x4976ed
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 0x497740
je 0x497737
cmp eax, ebx
je 0x497737
cmp eax, edi
je 0x49772e
cmp eax, 0x200
je 0x4977b3
cmp eax, 0x300
jne 0x497665
mov dword [ebp - 0x14], 2
jmp 0x49775d
mov dword [ebp - 0x14], 4
jmp 0x49775d
mov dword [ebp - 0x14], 3
jmp 0x49775d
cmp eax, 0x500
je 0x497756
cmp eax, 0x600
je 0x4977b3
cmp eax, edx
jne 0x497665
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x497781
mov ecx, dword [0x4d1c80]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x497781
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x49779d
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x49779d
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x4977a6
or dword [ebp - 0xc], edi
test al, 0x20
je 0x4977bc
or dword [ebp - 0xc], 0x8000000
jmp 0x4977c7
mov dword [ebp - 0x14], 5
jmp 0x49775d
test al, 0x10
je 0x4977c7
or dword [ebp - 0xc], 0x10000000
call fcn.00498600
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x4977ed
call fcn.00485933
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.00485920
mov dword [eax], 0x18
jmp 0x49787b
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 0x497887
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x497853
test byte [ebp + 0x10], 1
je 0x497853
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 0x497887
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5175c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00485946
pop ecx
call fcn.00485920
mov eax, dword [eax]
jmp 0x497d14
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x4978d8
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5175c0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.00485946
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x49787b
call fcn.00485920
mov dword [eax], 0xd
jmp 0x49787b
cmp eax, 2
jne 0x4978e3
or byte [ebp - 1], 0x40
jmp 0x4978ec
cmp eax, 3
jne 0x4978ec
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.004983cf
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5175c0]
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 + 0x5175c0]
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 0x4979c1
test cl, 0x80
je 0x497a91
test byte [ebp + 0x10], 2
je 0x4979c1
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0049fce3
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x497980
call fcn.00485933
cmp dword [eax], 0x83
je 0x4979c1
push dword [esi]
call fcn.0048a481
jmp 0x49787a
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0049f625
add esp, 0xc
test eax, eax
jne 0x4979b1
cmp byte [ebp - 4], 0x1a
jne 0x4979b1
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0049f36c
add esp, 0xc
cmp eax, edi
je 0x497974
push ebx
push ebx
push dword [esi]
call fcn.0049fce3
add esp, 0xc
cmp eax, edi
je 0x497974
test byte [ebp - 1], 0x80
je 0x497a91
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x4979e9
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x4979e6
or dword [ebp + 0x10], edi
jmp 0x4979e9
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x497a36
cmp eax, 0x10000
je 0x497a22
cmp eax, 0x14000
je 0x497a22
cmp eax, 0x20000
je 0x497a30
cmp eax, 0x24000
je 0x497a30
cmp eax, 0x40000
je 0x497a1c
cmp eax, 0x44000
jne 0x497a39
mov byte [ebp - 2], 1
jmp 0x497a39
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x497a39
mov byte [ebp - 2], 2
jmp 0x497a39
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x497a91
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x497a91
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x497beb
cmp eax, 0x80000000
je 0x497bb2
cmp eax, ecx
jne 0x497a91
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x497a91
cmp eax, 2
jbe 0x497c93
cmp eax, 4
jbe 0x497b84
cmp eax, 5
je 0x497c93
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5175c0]
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 + 0x5175c0]
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 0x497b03
test byte [ebp + 0x10], 8
je 0x497b03
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5175c0]
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 0x497d12
test byte [ebp + 0x10], 1
je 0x497d12
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 0x497cfb
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.00485946
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5175c0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0049844c
pop ecx
jmp 0x49787a
push 2
push ebx
push ebx
push dword [esi]
call fcn.00495b1a
add esp, 0x10
or eax, edx
je 0x497c93
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00495b1a
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x497974
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0049f625
add esp, 0xc
cmp eax, 0xffffffff
je 0x497974
cmp eax, 2
je 0x497c37
cmp eax, 3
jne 0x497c85
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x497c37
mov byte [ebp - 2], 1
jmp 0x497a91
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x497a91
cmp eax, 2
jbe 0x497c93
cmp eax, 4
ja 0x497a88
push 2
push ebx
push ebx
push dword [esi]
call fcn.00495b1a
add esp, 0x10
or eax, edx
je 0x497c93
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00495b1a
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x497a91
jmp 0x497974
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x497c5f
push dword [esi]
call fcn.0048a481
pop ecx
call fcn.00485920
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x497d14
cmp eax, 0xfeff
jne 0x497c85
push ebx
push 2
push dword [esi]
call fcn.0049fce3
add esp, 0xc
cmp eax, 0xffffffff
je 0x497974
mov byte [ebp - 2], 2
jmp 0x497a91
push ebx
push ebx
push dword [esi]
call fcn.0049fce3
add esp, 0xc
jmp 0x497c29
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x497cb3
dec eax
jne 0x497a91
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x497cc1
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.0049627c
add esp, 0xc
cmp eax, 0xffffffff
je 0x497ce7
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x497cc1
jmp 0x497a91
push dword [esi]
call fcn.0048a481
pop ecx
call fcn.00485920
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x497d14
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5175c0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret