Function at 0x65c927
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 0x65c956
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x65c960
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00662802
test eax, eax
pop ecx
je 0x65c97b
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00644f71
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.006460e8
test eax, eax
pop ecx
je 0x65c996
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00644f71
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x65c9b3
test ecx, 0x74000
jne 0x65c9af
cmp dword [ebp - 0x24], eax
je 0x65c9b3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x65ca0d
dec eax
je 0x65c9f7
dec eax
je 0x65c9f2
call fcn.0064beea
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0064bed7
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0064506d
add esp, 0x14
jmp 0x65cfbf
mov dword [ebp - 8], edx
jmp 0x65ca10
test cl, 8
je 0x65ca04
test ecx, 0x70000
jne 0x65c9f2
mov dword [ebp - 8], 0x40000000
jmp 0x65ca10
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x65ca51
sub eax, ecx
je 0x65ca48
sub eax, ecx
je 0x65ca3f
sub eax, ecx
je 0x65ca36
sub eax, 0x40
jne 0x65c9cc
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x65ca54
mov dword [ebp - 0x10], 3
jmp 0x65ca54
mov dword [ebp - 0x10], 2
jmp 0x65ca54
mov dword [ebp - 0x10], 1
jmp 0x65ca54
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 0x65caa7
je 0x65ca9e
cmp eax, ebx
je 0x65ca9e
cmp eax, edi
je 0x65ca95
cmp eax, 0x200
je 0x65cb1a
cmp eax, 0x300
jne 0x65c9cc
mov dword [ebp - 0x14], 2
jmp 0x65cac4
mov dword [ebp - 0x14], 4
jmp 0x65cac4
mov dword [ebp - 0x14], 3
jmp 0x65cac4
cmp eax, 0x500
je 0x65cabd
cmp eax, 0x600
je 0x65cb1a
cmp eax, edx
jne 0x65c9cc
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x65cae8
mov ecx, dword [0x82ab70]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x65cae8
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x65cb04
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x65cb04
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x65cb0d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x65cb23
or dword [ebp - 0xc], 0x8000000
jmp 0x65cb2e
mov dword [ebp - 0x14], 5
jmp 0x65cac4
test al, 0x10
je 0x65cb2e
or dword [ebp - 0xc], 0x10000000
call fcn.0065c788
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x65cb54
call fcn.0064beea
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0064bed7
mov dword [eax], 0x18
jmp 0x65cbe2
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 0x65cbee
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x65cbba
test byte [ebp + 0x10], 1
je 0x65cbba
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 0x65cbee
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x82d040]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0064befd
pop ecx
call fcn.0064bed7
mov eax, dword [eax]
jmp 0x65d07b
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x65cc3f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x82d040]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0064befd
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x65cbe2
call fcn.0064bed7
mov dword [eax], 0xd
jmp 0x65cbe2
cmp eax, 2
jne 0x65cc4a
or byte [ebp - 1], 0x40
jmp 0x65cc53
cmp eax, 3
jne 0x65cc53
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.0065c557
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x82d040]
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 + 0x82d040]
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 0x65cd28
test cl, 0x80
je 0x65cdf8
test byte [ebp + 0x10], 2
je 0x65cd28
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0065778b
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x65cce7
call fcn.0064beea
cmp dword [eax], 0x83
je 0x65cd28
push dword [esi]
call fcn.006545fe
jmp 0x65cbe1
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.00659a77
add esp, 0xc
test eax, eax
jne 0x65cd18
cmp byte [ebp - 4], 0x1a
jne 0x65cd18
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00662592
add esp, 0xc
cmp eax, edi
je 0x65ccdb
push ebx
push ebx
push dword [esi]
call fcn.0065778b
add esp, 0xc
cmp eax, edi
je 0x65ccdb
test byte [ebp - 1], 0x80
je 0x65cdf8
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x65cd50
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x65cd4d
or dword [ebp + 0x10], edi
jmp 0x65cd50
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x65cd9d
cmp eax, 0x10000
je 0x65cd89
cmp eax, 0x14000
je 0x65cd89
cmp eax, 0x20000
je 0x65cd97
cmp eax, 0x24000
je 0x65cd97
cmp eax, 0x40000
je 0x65cd83
cmp eax, 0x44000
jne 0x65cda0
mov byte [ebp - 2], 1
jmp 0x65cda0
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x65cda0
mov byte [ebp - 2], 2
jmp 0x65cda0
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x65cdf8
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x65cdf8
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x65cf52
cmp eax, 0x80000000
je 0x65cf19
cmp eax, ecx
jne 0x65cdf8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x65cdf8
cmp eax, 2
jbe 0x65cffa
cmp eax, 4
jbe 0x65ceeb
cmp eax, 5
je 0x65cffa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x82d040]
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 + 0x82d040]
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 0x65ce6a
test byte [ebp + 0x10], 8
je 0x65ce6a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x82d040]
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 0x65d079
test byte [ebp + 0x10], 1
je 0x65d079
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 0x65d062
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0064befd
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x82d040]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.0065c5d4
pop ecx
jmp 0x65cbe1
push 2
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
or eax, edx
je 0x65cffa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x65ccdb
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00659a77
add esp, 0xc
cmp eax, 0xffffffff
je 0x65ccdb
cmp eax, 2
je 0x65cf9e
cmp eax, 3
jne 0x65cfec
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x65cf9e
mov byte [ebp - 2], 1
jmp 0x65cdf8
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x65cdf8
cmp eax, 2
jbe 0x65cffa
cmp eax, 4
ja 0x65cdef
push 2
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
or eax, edx
je 0x65cffa
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x65cdf8
jmp 0x65ccdb
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x65cfc6
push dword [esi]
call fcn.006545fe
pop ecx
call fcn.0064bed7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x65d07b
cmp eax, 0xfeff
jne 0x65cfec
push ebx
push 2
push dword [esi]
call fcn.0065778b
add esp, 0xc
cmp eax, 0xffffffff
je 0x65ccdb
mov byte [ebp - 2], 2
jmp 0x65cdf8
push ebx
push ebx
push dword [esi]
call fcn.0065778b
add esp, 0xc
jmp 0x65cf90
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x65d01a
dec eax
jne 0x65cdf8
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x65d028
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.00656654
add esp, 0xc
cmp eax, 0xffffffff
je 0x65d04e
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x65d028
jmp 0x65cdf8
push dword [esi]
call fcn.006545fe
pop ecx
call fcn.0064bed7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x65d07b
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x82d040]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret