Function at 0x660e82
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 0x660eb1
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x660ebb
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00662802
test eax, eax
pop ecx
je 0x660ed6
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 0x660ef1
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 0x660f0e
test ecx, 0x74000
jne 0x660f0a
cmp dword [ebp - 0x24], eax
je 0x660f0e
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, closesocket
je 0x660f68
dec eax
je 0x660f52
dec eax
je 0x660f4d
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 0x66151b
mov dword [ebp - 8], edx
jmp 0x660f6b
test cl, 8
je 0x660f5f
test ecx, 0x70000
jne 0x660f4d
mov dword [ebp - 8], 0x40000000
jmp 0x660f6b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x660fac
sub eax, ecx
je 0x660fa3
sub eax, ecx
je 0x660f9a
sub eax, ecx
je 0x660f91
sub eax, 0x40
jne 0x660f27
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x660faf
mov dword [ebp - 0x10], 3
jmp 0x660faf
mov dword [ebp - 0x10], 2
jmp 0x660faf
mov dword [ebp - 0x10], 1
jmp 0x660faf
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 0x661002
je 0x660ff9
cmp eax, ebx
je 0x660ff9
cmp eax, edi
je 0x660ff0
cmp eax, 0x200
je 0x661075
cmp eax, 0x300
jne 0x660f27
mov dword [ebp - 0x14], 2
jmp 0x66101f
mov dword [ebp - 0x14], 4
jmp 0x66101f
mov dword [ebp - 0x14], 3
jmp 0x66101f
cmp eax, 0x500
je 0x661018
cmp eax, 0x600
je 0x661075
cmp eax, edx
jne 0x660f27
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x661043
mov ecx, dword [0x82ab70]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x661043
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x66105f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x66105f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x661068
or dword [ebp - 0xc], edi
test al, 0x20
je 0x66107e
or dword [ebp - 0xc], 0x8000000
jmp 0x661089
mov dword [ebp - 0x14], 5
jmp 0x66101f
test al, 0x10
je 0x661089
or dword [ebp - 0xc], 0x10000000
call fcn.0065c788
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x6610af
call fcn.0064beea
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0064bed7
mov dword [eax], 0x18
jmp 0x66113d
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 0x661149
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x661115
test byte [ebp + 0x10], 1
je 0x661115
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 0x661149
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 0x6615d7
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x66119a
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 0x66113d
call fcn.0064bed7
mov dword [eax], 0xd
jmp 0x66113d
cmp eax, 2
jne 0x6611a5
or byte [ebp - 1], 0x40
jmp 0x6611ae
cmp eax, 3
jne 0x6611ae
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 0x661284
test cl, 0x80
je 0x661354
test byte [ebp + 0x10], 2
je 0x661284
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 0x661242
call fcn.0064beea
cmp dword [eax], 0x83
je 0x661284
push dword [esi]
call fcn.006545fe
jmp 0x66113c
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.00659a77
add esp, 0xc
test eax, eax
jne 0x661274
cmp word [ebp - 0x2c], 0x1a
jne 0x661274
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.00662592
add esp, 0xc
cmp eax, edi
je 0x661236
push ebx
push ebx
push dword [esi]
call fcn.0065778b
add esp, 0xc
cmp eax, edi
je 0x661236
test byte [ebp - 1], 0x80
je 0x661354
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x6612ac
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x6612a9
or dword [ebp + 0x10], edi
jmp 0x6612ac
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x6612f9
cmp eax, 0x10000
je 0x6612e5
cmp eax, 0x14000
je 0x6612e5
cmp eax, 0x20000
je 0x6612f3
cmp eax, 0x24000
je 0x6612f3
cmp eax, 0x40000
je 0x6612df
cmp eax, 0x44000
jne 0x6612fc
mov byte [ebp - 2], 1
jmp 0x6612fc
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x6612fc
mov byte [ebp - 2], 2
jmp 0x6612fc
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x661354
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x661354
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x6614ae
cmp eax, 0x80000000
je 0x661475
cmp eax, ecx
jne 0x661354
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x661354
cmp eax, 2
jbe 0x661556
cmp eax, 4
jbe 0x661447
cmp eax, 5
je 0x661556
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 0x6613c6
test byte [ebp + 0x10], 8
je 0x6613c6
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 0x6615d5
test byte [ebp + 0x10], 1
je 0x6615d5
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 0x6615be
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 0x66113c
push 2
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
or eax, edx
je 0x661556
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x661236
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.00659a77
add esp, 0xc
cmp eax, 0xffffffff
je 0x661236
cmp eax, 2
je 0x6614fa
cmp eax, 3
jne 0x661548
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x6614fa
mov byte [ebp - 2], 1
jmp 0x661354
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x661354
cmp eax, 2
jbe 0x661556
cmp eax, 4
ja 0x66134b
push 2
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
or eax, edx
je 0x661556
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0065bf39
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x661354
jmp 0x661236
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x661522
push dword [esi]
call fcn.006545fe
pop ecx
call fcn.0064bed7
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x6615d7
cmp eax, 0xfeff
jne 0x661548
push ebx
push 2
push dword [esi]
call fcn.0065778b
add esp, 0xc
cmp eax, 0xffffffff
je 0x661236
mov byte [ebp - 2], 2
jmp 0x661354
push ebx
push ebx
push dword [esi]
call fcn.0065778b
add esp, 0xc
jmp 0x6614ec
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x661576
dec eax
jne 0x661354
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x661584
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 0x6615aa
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x661584
jmp 0x661354
push dword [esi]
call fcn.006545fe
pop ecx
call fcn.0064bed7
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x6615d7
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