Function at 0x578dfb
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 0x578e2a
mov dword [ebp - 0x2c], ebx
mov byte [ebp - 1], 0x10
jmp 0x578e34
mov dword [ebp - 0x2c], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0057c6cc
test eax, eax
pop ecx
je 0x578e4f
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00553186
add esp, 0x14
lea eax, [ebp - 0x28]
push eax
call fcn.0055a0cb
test eax, eax
pop ecx
je 0x578e6a
push ebx
push ebx
push ebx
push ebx
push ebx
call fcn.00553186
add esp, 0x14
mov ecx, dword [ebp + 0x10]
mov eax, 0x8000
test eax, ecx
jne 0x578e87
test ecx, 0x74000
jne 0x578e83
cmp dword [ebp - 0x24], eax
je 0x578e87
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x578ee1
dec eax
je 0x578ecb
dec eax
je 0x578ec6
call fcn.0055b930
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0055b91d
push 0x16
pop esi
push ebx
push ebx
push ebx
push ebx
push ebx
mov dword [eax], esi
call fcn.005532ba
add esp, 0x14
jmp 0x579493
mov dword [ebp - 8], edx
jmp 0x578ee4
test cl, 8
je 0x578ed8
test ecx, 0x70000
jne 0x578ec6
mov dword [ebp - 8], 0x40000000
jmp 0x578ee4
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x578f25
sub eax, ecx
je 0x578f1c
sub eax, ecx
je 0x578f13
sub eax, ecx
je 0x578f0a
sub eax, 0x40
jne 0x578ea0
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x578f28
mov dword [ebp - 0x10], 3
jmp 0x578f28
mov dword [ebp - 0x10], 2
jmp 0x578f28
mov dword [ebp - 0x10], 1
jmp 0x578f28
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 0x578f7b
je 0x578f72
cmp eax, ebx
je 0x578f72
cmp eax, edi
je 0x578f69
cmp eax, 0x200
je 0x578fee
cmp eax, 0x300
jne 0x578ea0
mov dword [ebp - 0x14], 2
jmp 0x578f98
mov dword [ebp - 0x14], 4
jmp 0x578f98
mov dword [ebp - 0x14], 3
jmp 0x578f98
cmp eax, 0x500
je 0x578f91
cmp eax, 0x600
je 0x578fee
cmp eax, edx
jne 0x578ea0
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x578fbc
mov ecx, dword [0x5cee24]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x578fbc
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x578fd8
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x578fd8
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x578fe1
or dword [ebp - 0xc], edi
test al, 0x20
je 0x578ff7
or dword [ebp - 0xc], 0x8000000
jmp 0x579002
mov dword [ebp - 0x14], 5
jmp 0x578f98
test al, 0x10
je 0x579002
or dword [ebp - 0xc], 0x10000000
call fcn.00576474
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x579028
call fcn.0055b930
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0055b91d
mov dword [eax], 0x18
jmp 0x5790b6
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 0x5790c2
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x57908e
test byte [ebp + 0x10], 1
je 0x57908e
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 0x5790c2
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5cfa00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0055b943
pop ecx
call fcn.0055b91d
mov eax, dword [eax]
jmp 0x57954f
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x579113
mov esi, dword [esi]
mov eax, esi
and esi, 0x1f
imul esi, esi, 0x38
sar eax, 5
mov eax, dword [eax*4 + 0x5cfa00]
lea eax, [eax + esi + 4]
and byte [eax], 0xfe
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov esi, eax
push esi
call fcn.0055b943
pop ecx
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp esi, ebx
jne 0x5790b6
call fcn.0055b91d
mov dword [eax], 0xd
jmp 0x5790b6
cmp eax, 2
jne 0x57911e
or byte [ebp - 1], 0x40
jmp 0x579127
cmp eax, 3
jne 0x579127
or byte [ebp - 1], 8
push dword [ebp - 0x1c]
push dword [esi]
call fcn.00576243
mov eax, dword [esi]
mov edx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar edx, 5
mov edx, dword [edx*4 + 0x5cfa00]
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 + 0x5cfa00]
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 0x5791fc
test cl, 0x80
je 0x5792cc
test byte [ebp + 0x10], 2
je 0x5791fc
push 2
or edi, 0xffffffff
push edi
push dword [esi]
call fcn.00564233
add esp, 0xc
cmp eax, edi
mov dword [ebp - 0x18], eax
jne 0x5791bb
call fcn.0055b930
cmp dword [eax], 0x83
je 0x5791fc
push dword [esi]
call fcn.0056466f
jmp 0x5790b5
push 1
lea eax, [ebp - 4]
push eax
push dword [esi]
mov byte [ebp - 4], bl
call fcn.005759e2
add esp, 0xc
test eax, eax
jne 0x5791ec
cmp byte [ebp - 4], 0x1a
jne 0x5791ec
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0057c311
add esp, 0xc
cmp eax, edi
je 0x5791af
push ebx
push ebx
push dword [esi]
call fcn.00564233
add esp, 0xc
cmp eax, edi
je 0x5791af
test byte [ebp - 1], 0x80
je 0x5792cc
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x579224
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x579221
or dword [ebp + 0x10], edi
jmp 0x579224
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x579271
cmp eax, 0x10000
je 0x57925d
cmp eax, 0x14000
je 0x57925d
cmp eax, 0x20000
je 0x57926b
cmp eax, 0x24000
je 0x57926b
cmp eax, 0x40000
je 0x579257
cmp eax, 0x44000
jne 0x579274
mov byte [ebp - 2], 1
jmp 0x579274
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x579274
mov byte [ebp - 2], 2
jmp 0x579274
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x5792cc
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x5792cc
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x579426
cmp eax, 0x80000000
je 0x5793ed
cmp eax, ecx
jne 0x5792cc
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5792cc
cmp eax, 2
jbe 0x5794ce
cmp eax, 4
jbe 0x5793bf
cmp eax, 5
je 0x5794ce
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5cfa00]
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 + 0x5cfa00]
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 0x57933e
test byte [ebp + 0x10], 8
je 0x57933e
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5cfa00]
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 0x57954d
test byte [ebp + 0x10], 1
je 0x57954d
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 0x579536
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.0055b943
mov eax, dword [esi]
mov ecx, eax
and eax, 0x1f
imul eax, eax, 0x38
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5cfa00]
lea eax, [ecx + eax + 4]
and byte [eax], 0xfe
push dword [esi]
call fcn.005762c0
pop ecx
jmp 0x5790b5
push 2
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
or eax, edx
je 0x5794ce
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00575077
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x5791af
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.005759e2
add esp, 0xc
cmp eax, 0xffffffff
je 0x5791af
cmp eax, 2
je 0x579472
cmp eax, 3
jne 0x5794c0
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x579472
mov byte [ebp - 2], 1
jmp 0x5792cc
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x5792cc
cmp eax, 2
jbe 0x5794ce
cmp eax, 4
ja 0x5792c3
push 2
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
or eax, edx
je 0x5794ce
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x5792cc
jmp 0x5791af
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x57949a
push dword [esi]
call fcn.0056466f
pop ecx
call fcn.0055b91d
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x57954f
cmp eax, 0xfeff
jne 0x5794c0
push ebx
push 2
push dword [esi]
call fcn.00564233
add esp, 0xc
cmp eax, 0xffffffff
je 0x5791af
mov byte [ebp - 2], 2
jmp 0x5792cc
push ebx
push ebx
push dword [esi]
call fcn.00564233
add esp, 0xc
jmp 0x579464
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x5794ee
dec eax
jne 0x5792cc
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x5794fc
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.00563d24
add esp, 0xc
cmp eax, 0xffffffff
je 0x579522
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x5794fc
jmp 0x5792cc
push dword [esi]
call fcn.0056466f
pop ecx
call fcn.0055b91d
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x57954f
mov esi, dword [esi]
mov ecx, esi
sar ecx, 5
mov ecx, dword [ecx*4 + 0x5cfa00]
and esi, 0x1f
imul esi, esi, 0x38
mov dword [esi + ecx], eax
mov eax, ebx
pop edi
pop esi
pop ebx
leave
ret