Function at 0x540b67
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 0x540b96
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x540ba0
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.00544bfe
test eax, eax
pop ecx
je 0x540bbb
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0052b200
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0052abd7
test eax, eax
pop ecx
je 0x540bd6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.0052b200
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x540bf3
test ecx, 0x74000
jne 0x540bef
cmp dword [ebp - 0x24], eax
je 0x540bf3
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x540c4d
dec eax
je 0x540c37
dec eax
je 0x540c32
call fcn.005322fc
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005322e9
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.0052b2fc
add esp, 0x14
jmp 0x5411ff
mov dword [ebp - 8], edx
jmp 0x540c50
test cl, 8
je 0x540c44
test ecx, 0x70000
jne 0x540c32
mov dword [ebp - 8], 0x40000000
jmp 0x540c50
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x540c91
sub eax, ecx
je 0x540c88
sub eax, ecx
je 0x540c7f
sub eax, ecx
je 0x540c76
sub eax, 0x40
jne 0x540c0c
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x540c94
mov dword [ebp - 0x10], 3
jmp 0x540c94
mov dword [ebp - 0x10], 2
jmp 0x540c94
mov dword [ebp - 0x10], 1
jmp 0x540c94
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 0x540ce7
je 0x540cde
cmp eax, ebx
je 0x540cde
cmp eax, edi
je 0x540cd5
cmp eax, 0x200
je 0x540d5a
cmp eax, 0x300
jne 0x540c0c
mov dword [ebp - 0x14], 2
jmp 0x540d04
mov dword [ebp - 0x14], 4
jmp 0x540d04
mov dword [ebp - 0x14], 3
jmp 0x540d04
cmp eax, 0x500
je 0x540cfd
cmp eax, 0x600
je 0x540d5a
cmp eax, edx
jne 0x540c0c
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x540d28
mov ecx, dword [0x65f660]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x540d28
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x540d44
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x540d44
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x540d4d
or dword [ebp - 0xc], edi
test al, 0x20
je 0x540d63
or dword [ebp - 0xc], 0x8000000
jmp 0x540d6e
mov dword [ebp - 0x14], 5
jmp 0x540d04
test al, 0x10
je 0x540d6e
or dword [ebp - 0xc], 0x10000000
call fcn.00540964
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x540d94
call fcn.005322fc
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.005322e9
mov dword [eax], 0x18
jmp 0x540e22
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 0x540e2e
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x540dfa
test byte [ebp + 0x10], 1
je 0x540dfa
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 0x540e2e
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6619e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0053230f
pop ecx
call fcn.005322e9
mov eax, dword [eax]
jmp 0x5412bb
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x540e7f
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x6619e0]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0053230f
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x540e22
call fcn.005322e9
mov dword [eax], 0xd
jmp 0x540e22
cmp eax, 2
jne 0x540e8a
or byte [ebp - 1], 0x40
jmp 0x540e93
cmp eax, 3
jne 0x540e93
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00540733
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x6619e0]
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 + 0x6619e0]
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 0x540f68
test cl, 0x80
je 0x541038
test byte [ebp + 0x10], 2
je 0x540f68
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.0053a5e0
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x540f27
call fcn.005322fc
cmp dword [eax], 0x83
je 0x540f68
push dword [esi]
call fcn.0053a842
jmp 0x540e21
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.0053a9a3
add esp, 0xc
test eax, eax
jne 0x540f58
cmp byte [ebp - 4], 0x1a
jne 0x540f58
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0054498e
add esp, 0xc
cmp eax, edi
je 0x540f1b
push ebx
push ebx
push dword [esi]
call fcn.0053a5e0
add esp, 0xc
cmp eax, edi
je 0x540f1b
test byte [ebp - 1], 0x80
je 0x541038
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x540f90
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x540f8d
or dword [ebp + 0x10], edi
jmp 0x540f90
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x540fdd
cmp eax, 0x10000
je 0x540fc9
cmp eax, 0x14000
je 0x540fc9
cmp eax, 0x20000
je 0x540fd7
cmp eax, 0x24000
je 0x540fd7
cmp eax, 0x40000
je 0x540fc3
cmp eax, 0x44000
jne 0x540fe0
mov byte [ebp - 2], 1
jmp 0x540fe0
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x540fe0
mov byte [ebp - 2], 2
jmp 0x540fe0
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x541038
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x541038
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x541192
cmp eax, 0x80000000
je 0x541159
cmp eax, ecx
jne 0x541038
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x541038
cmp eax, 2
jbe 0x54123a
cmp eax, 4
jbe 0x54112b
cmp eax, 5
je 0x54123a
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6619e0]
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 + 0x6619e0]
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 0x5410aa
test byte [ebp + 0x10], 8
je 0x5410aa
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6619e0]
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 0x5412b9
test byte [ebp + 0x10], 1
je 0x5412b9
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 0x5412a2
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0053230f
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6619e0]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.005407b0
pop ecx
jmp 0x540e21
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053da0d
add esp, 0x10
or eax, edx
je 0x54123a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053da0d
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x540f1b
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.0053a9a3
add esp, 0xc
cmp eax, 0xffffffff
je 0x540f1b
cmp eax, 2
je 0x5411de
cmp eax, 3
jne 0x54122c
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x5411de
mov byte [ebp - 2], 1
jmp 0x541038
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x541038
cmp eax, 2
jbe 0x54123a
cmp eax, 4
ja 0x54102f
push 2
push ebx
push ebx
push dword [esi]
call fcn.0053da0d
add esp, 0x10
or eax, edx
je 0x54123a
push ebx
push ebx
push ebx
push dword [esi]
call fcn.0053da0d
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x541038
jmp 0x540f1b
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x541206
push dword [esi]
call fcn.0053a842
pop ecx
call fcn.005322e9
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x5412bb
cmp eax, 0xfeff
jne 0x54122c
push ebx
push 2
push dword [esi]
call fcn.0053a5e0
add esp, 0xc
cmp eax, 0xffffffff
je 0x540f1b
mov byte [ebp - 2], 2
jmp 0x541038
push ebx
push ebx
push dword [esi]
call fcn.0053a5e0
add esp, 0xc
jmp 0x5411d0
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x54125a
dec eax
jne 0x541038
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x541268
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.005392d9
add esp, 0xc
cmp eax, 0xffffffff
je 0x54128e
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x541268
jmp 0x541038
push dword [esi]
call fcn.0053a842
pop ecx
call fcn.005322e9
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x5412bb
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x6619e0]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret