Function at 0x10087f72
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 0x10087fa1
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x10087fab
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.10088c47
test eax, eax
pop ecx
je 0x10087fc6
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.100769c4
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.10074fc1
test eax, eax
pop ecx
je 0x10087fe1
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.100769c4
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x10087ffe
test ecx, 0x74000
jne 0x10087ffa
cmp dword [ebp - 0x24], eax
je 0x10087ffe
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, SysReAllocString
je 0x10088058
dec eax
je 0x10088042
dec eax
je 0x1008803d
call fcn.10076b42
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10076b2f
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.10076ac0
add esp, 0x14
jmp 0x1008860b
mov dword [ebp - 8], edx
jmp 0x1008805b
test cl, 8
je 0x1008804f
test ecx, 0x70000
jne 0x1008803d
mov dword [ebp - 8], 0x40000000
jmp 0x1008805b
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x1008809c
sub eax, ecx
je 0x10088093
sub eax, ecx
je 0x1008808a
sub eax, ecx
je 0x10088081
sub eax, 0x40
jne 0x10088017
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x1008809f
mov dword [ebp - 0x10], 3
jmp 0x1008809f
mov dword [ebp - 0x10], 2
jmp 0x1008809f
mov dword [ebp - 0x10], 1
jmp 0x1008809f
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 0x100880f2
je 0x100880e9
cmp eax, ebx
je 0x100880e9
cmp eax, edi
je 0x100880e0
cmp eax, 0x200
je 0x10088165
cmp eax, 0x300
jne 0x10088017
mov dword [ebp - 0x14], 2
jmp 0x1008810f
mov dword [ebp - 0x14], 4
jmp 0x1008810f
mov dword [ebp - 0x14], 3
jmp 0x1008810f
cmp eax, 0x500
je 0x10088108
cmp eax, 0x600
je 0x10088165
cmp eax, edx
jne 0x10088017
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x10088133
mov ecx, dword [0x100cdcf4]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x10088133
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x1008814f
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x1008814f
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x10088158
or dword [ebp - 0xc], edi
test al, 0x20
je 0x1008816e
or dword [ebp - 0xc], 0x8000000
jmp 0x10088179
mov dword [ebp - 0x14], 5
jmp 0x1008810f
test al, 0x10
je 0x10088179
or dword [ebp - 0xc], 0x10000000
call fcn.10086d52
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x1008819f
call fcn.10076b42
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.10076b2f
mov dword [eax], 0x18
jmp 0x1008822d
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 0x10088239
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x10088205
test byte [ebp + 0x10], 1
je 0x10088205
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 0x10088239
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100cfc20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10076b55
pop ecx
call fcn.10076b2f
mov eax, dword [eax]
jmp 0x100886c7
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x1008828a
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x100cfc20]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.10076b55
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x1008822d
call fcn.10076b2f
mov dword [eax], 0xd
jmp 0x1008822d
cmp eax, 2
jne 0x10088295
or byte [ebp - 1], 0x40
jmp 0x1008829e
cmp eax, 3
jne 0x1008829e
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.10086b21
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x100cfc20]
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 + 0x100cfc20]
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 0x10088374
test cl, 0x80
je 0x10088444
test byte [ebp + 0x10], 2
je 0x10088374
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.100849f9
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x10088332
call fcn.10076b42
cmp dword [eax], 0x83
je 0x10088374
push dword [esi]
call fcn.100851fa
jmp 0x1008822c
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.10086ef1
add esp, 0xc
test eax, eax
jne 0x10088364
cmp word [ebp - 0x2c], 0x1a
jne 0x10088364
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.100889d7
add esp, 0xc
cmp eax, edi
je 0x10088326
push ebx
push ebx
push dword [esi]
call fcn.100849f9
add esp, 0xc
cmp eax, edi
je 0x10088326
test byte [ebp - 1], 0x80
je 0x10088444
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x1008839c
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x10088399
or dword [ebp + 0x10], edi
jmp 0x1008839c
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x100883e9
cmp eax, 0x10000
je 0x100883d5
cmp eax, 0x14000
je 0x100883d5
cmp eax, 0x20000
je 0x100883e3
cmp eax, 0x24000
je 0x100883e3
cmp eax, 0x40000
je 0x100883cf
cmp eax, 0x44000
jne 0x100883ec
mov byte [ebp - 2], 1
jmp 0x100883ec
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x100883ec
mov byte [ebp - 2], 2
jmp 0x100883ec
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x10088444
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x10088444
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x1008859e
cmp eax, 0x80000000
je 0x10088565
cmp eax, ecx
jne 0x10088444
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10088444
cmp eax, 2
jbe 0x10088646
cmp eax, 4
jbe 0x10088537
cmp eax, 5
je 0x10088646
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cfc20]
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 + 0x100cfc20]
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 0x100884b6
test byte [ebp + 0x10], 8
je 0x100884b6
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cfc20]
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 0x100886c5
test byte [ebp + 0x10], 1
je 0x100886c5
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 0x100886ae
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.10076b55
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cfc20]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.10086b9e
pop ecx
jmp 0x1008822c
push 2
push ebx
push ebx
push dword [esi]
call fcn.10085abb
add esp, 0x10
or eax, edx
je 0x10088646
push ebx
push ebx
push ebx
push dword [esi]
call fcn.10085abb
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x10088326
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.10086ef1
add esp, 0xc
cmp eax, 0xffffffff
je 0x10088326
cmp eax, 2
je 0x100885ea
cmp eax, 3
jne 0x10088638
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x100885ea
mov byte [ebp - 2], 1
jmp 0x10088444
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x10088444
cmp eax, 2
jbe 0x10088646
cmp eax, 4
ja 0x1008843b
push 2
push ebx
push ebx
push dword [esi]
call fcn.10085abb
add esp, 0x10
or eax, edx
je 0x10088646
push ebx
push ebx
push ebx
push dword [esi]
call fcn.10085abb
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x10088444
jmp 0x10088326
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x10088612
push dword [esi]
call fcn.100851fa
pop ecx
call fcn.10076b2f
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x100886c7
cmp eax, 0xfeff
jne 0x10088638
push ebx
push 2
push dword [esi]
call fcn.100849f9
add esp, 0xc
cmp eax, 0xffffffff
je 0x10088326
mov byte [ebp - 2], 2
jmp 0x10088444
push ebx
push ebx
push dword [esi]
call fcn.100849f9
add esp, 0xc
jmp 0x100885dc
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x10088666
dec eax
jne 0x10088444
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x10088674
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.100847b9
add esp, 0xc
cmp eax, 0xffffffff
je 0x1008869a
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x10088674
jmp 0x10088444
push dword [esi]
call fcn.100851fa
pop ecx
call fcn.10076b2f
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x100886c7
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x100cfc20]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret