Function at 0x579ad1
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 0x579b00
mov dword [ebp - 0x30], ebx
mov byte [ebp - 1], 0x10
jmp 0x579b0a
mov dword [ebp - 0x30], 1
mov byte [ebp - 1], bl
lea eax, [ebp - 0x24]
push eax
call fcn.0057c6cc
test eax, eax
pop ecx
je 0x579b25
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 0x579b40
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 0x579b5d
test ecx, 0x74000
jne 0x579b59
cmp dword [ebp - 0x24], eax
je 0x579b5d
or byte [ebp - 1], 0x80
mov eax, ecx
and eax, 3
sub eax, ebx
mov edx, 0xc0000000
mov edi, connect
je 0x579bb7
dec eax
je 0x579ba1
dec eax
je 0x579b9c
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 0x57a16a
mov dword [ebp - 8], edx
jmp 0x579bba
test cl, 8
je 0x579bae
test ecx, 0x70000
jne 0x579b9c
mov dword [ebp - 8], 0x40000000
jmp 0x579bba
mov dword [ebp - 8], edi
mov eax, dword [ebp + 0x14]
push 0x10
pop ecx
sub eax, ecx
je 0x579bfb
sub eax, ecx
je 0x579bf2
sub eax, ecx
je 0x579be9
sub eax, ecx
je 0x579be0
sub eax, 0x40
jne 0x579b76
cmp dword [ebp - 8], edi
sete al
mov dword [ebp - 0x10], eax
jmp 0x579bfe
mov dword [ebp - 0x10], 3
jmp 0x579bfe
mov dword [ebp - 0x10], 2
jmp 0x579bfe
mov dword [ebp - 0x10], 1
jmp 0x579bfe
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 0x579c51
je 0x579c48
cmp eax, ebx
je 0x579c48
cmp eax, edi
je 0x579c3f
cmp eax, 0x200
je 0x579cc4
cmp eax, 0x300
jne 0x579b76
mov dword [ebp - 0x14], 2
jmp 0x579c6e
mov dword [ebp - 0x14], 4
jmp 0x579c6e
mov dword [ebp - 0x14], 3
jmp 0x579c6e
cmp eax, 0x500
je 0x579c67
cmp eax, 0x600
je 0x579cc4
cmp eax, edx
jne 0x579b76
mov dword [ebp - 0x14], 1
mov eax, dword [ebp + 0x10]
test edi, eax
mov dword [ebp - 0xc], 0x80
je 0x579c92
mov ecx, dword [0x5cee24]
not ecx
and ecx, dword [ebp + 0x18]
test cl, cl
js 0x579c92
mov dword [ebp - 0xc], 1
test al, 0x40
je 0x579cae
or dword [ebp - 0xc], 0x4000000
or dword [ebp - 8], 0x10000
cmp dword [ebp - 0x28], 2
jne 0x579cae
or dword [ebp - 0x10], 4
test ax, 0x1000
je 0x579cb7
or dword [ebp - 0xc], edi
test al, 0x20
je 0x579ccd
or dword [ebp - 0xc], 0x8000000
jmp 0x579cd8
mov dword [ebp - 0x14], 5
jmp 0x579c6e
test al, 0x10
je 0x579cd8
or dword [ebp - 0xc], 0x10000000
call fcn.00576474
cmp eax, 0xffffffff
mov dword [esi], eax
jne 0x579cfe
call fcn.0055b930
mov dword [eax], ebx
or dword [esi], 0xffffffff
call fcn.0055b91d
mov dword [eax], 0x18
jmp 0x579d8c
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 0x579d98
mov ecx, dword [ebp - 8]
mov eax, 0xc0000000
and ecx, eax
cmp ecx, eax
jne 0x579d64
test byte [ebp + 0x10], 1
je 0x579d64
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 0x579d98
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 0x57a226
push dword [ebp - 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileType]
cmp eax, ebx
jne 0x579de9
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 0x579d8c
call fcn.0055b91d
mov dword [eax], 0xd
jmp 0x579d8c
cmp eax, 2
jne 0x579df4
or byte [ebp - 1], 0x40
jmp 0x579dfd
cmp eax, 3
jne 0x579dfd
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 0x579ed3
test cl, 0x80
je 0x579fa3
test byte [ebp + 0x10], 2
je 0x579ed3
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 0x579e91
call fcn.0055b930
cmp dword [eax], 0x83
je 0x579ed3
push dword [esi]
call fcn.0056466f
jmp 0x579d8b
push 1
lea eax, [ebp - 0x2c]
push eax
push dword [esi]
mov dword [ebp - 0x2c], ebx
call fcn.005759e2
add esp, 0xc
test eax, eax
jne 0x579ec3
cmp word [ebp - 0x2c], 0x1a
jne 0x579ec3
mov eax, dword [ebp - 0x18]
cdq
push edx
push eax
push dword [esi]
call fcn.0057c311
add esp, 0xc
cmp eax, edi
je 0x579e85
push ebx
push ebx
push dword [esi]
call fcn.00564233
add esp, 0xc
cmp eax, edi
je 0x579e85
test byte [ebp - 1], 0x80
je 0x579fa3
mov ecx, 0x74000
test dword [ebp + 0x10], ecx
mov edi, 0x4000
jne 0x579efb
mov eax, dword [ebp - 0x24]
and eax, ecx
jne 0x579ef8
or dword [ebp + 0x10], edi
jmp 0x579efb
or dword [ebp + 0x10], eax
mov eax, dword [ebp + 0x10]
and eax, ecx
cmp eax, edi
je 0x579f48
cmp eax, 0x10000
je 0x579f34
cmp eax, 0x14000
je 0x579f34
cmp eax, 0x20000
je 0x579f42
cmp eax, 0x24000
je 0x579f42
cmp eax, 0x40000
je 0x579f2e
cmp eax, 0x44000
jne 0x579f4b
mov byte [ebp - 2], 1
jmp 0x579f4b
mov ecx, dword [ebp + 0x10]
mov eax, 0x301
and ecx, eax
cmp ecx, eax
jne 0x579f4b
mov byte [ebp - 2], 2
jmp 0x579f4b
mov byte [ebp - 2], bl
test dword [ebp + 0x10], 0x70000
je 0x579fa3
test byte [ebp - 1], 0x40
mov dword [ebp - 0x18], ebx
jne 0x579fa3
mov eax, dword [ebp - 8]
mov ecx, 0xc0000000
and eax, ecx
cmp eax, 0x40000000
je 0x57a0fd
cmp eax, 0x80000000
je 0x57a0c4
cmp eax, ecx
jne 0x579fa3
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x579fa3
cmp eax, 2
jbe 0x57a1a5
cmp eax, 4
jbe 0x57a096
cmp eax, 5
je 0x57a1a5
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 0x57a015
test byte [ebp + 0x10], 8
je 0x57a015
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 0x57a224
test byte [ebp + 0x10], 1
je 0x57a224
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 0x57a20d
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 0x579d8b
push 2
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
or eax, edx
je 0x57a1a5
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00575077
and eax, edx
add esp, 0x10
cmp eax, 0xffffffff
je 0x579e85
push 3
lea eax, [ebp - 0x18]
push eax
push dword [esi]
call fcn.005759e2
add esp, 0xc
cmp eax, 0xffffffff
je 0x579e85
cmp eax, 2
je 0x57a149
cmp eax, 3
jne 0x57a197
cmp dword [ebp - 0x18], 0xbfbbef
jne 0x57a149
mov byte [ebp - 2], 1
jmp 0x579fa3
mov eax, dword [ebp - 0x14]
cmp eax, ebx
jbe 0x579fa3
cmp eax, 2
jbe 0x57a1a5
cmp eax, 4
ja 0x579f9a
push 2
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
or eax, edx
je 0x57a1a5
push ebx
push ebx
push ebx
push dword [esi]
call fcn.00575077
add esp, 0x10
and eax, edx
cmp eax, 0xffffffff
jne 0x579fa3
jmp 0x579e85
mov eax, dword [ebp - 0x18]
and eax, 0xffff
cmp eax, 0xfffe
jne 0x57a171
push dword [esi]
call fcn.0056466f
pop ecx
call fcn.0055b91d
push 0x16
pop esi
mov dword [eax], esi
mov eax, esi
jmp 0x57a226
cmp eax, 0xfeff
jne 0x57a197
push ebx
push 2
push dword [esi]
call fcn.00564233
add esp, 0xc
cmp eax, 0xffffffff
je 0x579e85
mov byte [ebp - 2], 2
jmp 0x579fa3
push ebx
push ebx
push dword [esi]
call fcn.00564233
add esp, 0xc
jmp 0x57a13b
movsx eax, byte [ebp - 2]
xor edi, edi
dec eax
je 0x57a1c5
dec eax
jne 0x579fa3
mov dword [ebp - 0x18], 0xfeff
mov dword [ebp - 0x14], 2
jmp 0x57a1d3
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 0x57a1f9
add edi, eax
cmp dword [ebp - 0x14], edi
jg 0x57a1d3
jmp 0x579fa3
push dword [esi]
call fcn.0056466f
pop ecx
call fcn.0055b91d
mov eax, dword [eax]
mov dword [ebp - 0x20], eax
jmp 0x57a226
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