Function at 0x10028640
Capabilities:
Encode data using xor

Disassembly:
push ebx
mov ebx, esp
sub esp, 8
and esp, 0xfffffff8
add esp, 4
push ebp
mov ebp, dword [ebx + 4]
mov dword [esp + 4], ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x10069390
mov eax, dword fs:[0]
push eax
push ebx
sub esp, 0x40
push esi
push edi
mov eax, dword [0x1007e040]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, ecx
cmp word [ebx + 8], 0
mov dword [ebp - 4], 0
jbe 0x10028a05
cmp word [esi + 0x28], 0
jg 0x10028a05
movaps xmm0, xmmword [0x10077790]
xor ecx, ecx
mov byte [esi + 0x20], 0
mov dword [esi + 0x24], 0
movups xmmword [ebp - 0x2c], xmm0
mov dword [ebp - 0x1c], 0x676d6d06
mov dword [ebp - 0x18], 0x6d6d
mov al, byte [ebp - 0x2c]
xor byte [ebp + ecx - 0x2b], al
inc ecx
cmp ecx, 0x16
jb 0x100286c0
xorps xmm0, xmm0
mov byte [ebp - 0x15], 0
lea ecx, [ebp - 0x2b]
mov dword [ebp - 0x38], 0
movups xmmword [ebp - 0x48], xmm0
mov dword [ebp - 0x34], 0
lea edx, [ecx + 1]
nop dword [eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x100286f0
sub ecx, edx
lea eax, [ebp - 0x2b]
push ecx
push eax
lea ecx, [ebp - 0x48]
call fcn.10005220
mov byte [ebp - 4], 1
mov edi, dword [esi + 8]
test edi, edi
je 0x1002872a
push 4
push edi
call dword [sym.imp.KERNEL32.dll_IsBadReadPtr]
test eax, eax
jne 0x1002872a
lea eax, [ebp - 0x48]
mov ecx, edi
push eax
call dword [0x10075274]
mov byte [ebp - 4], 0
mov ecx, dword [ebp - 0x34]
cmp ecx, 0xf
jbe 0x10028764
mov edx, dword [ebp - 0x48]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x1002875a
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x1002875a
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push ecx
push edx
call fcn.100662c0
add esp, 8
movaps xmm0, xmmword [0x10077400]
xor ecx, ecx
movups xmmword [ebp - 0x2c], xmm0
mov dword [ebp - 0x1c], 0x6f6f047f
mov dword [ebp - 0x18], 0x26f6f65
mov byte [ebp - 0x14], 0
mov al, byte [ebp - 0x2c]
xor byte [ebp + ecx - 0x2b], al
inc ecx
cmp ecx, 0x17
jb 0x10028783
xorps xmm0, xmm0
mov byte [ebp - 0x14], 0
lea ecx, [ebp - 0x2b]
mov dword [ebp - 0x38], 0
movups xmmword [ebp - 0x48], xmm0
mov dword [ebp - 0x34], 0
lea edx, [ecx + 1]
nop
mov al, byte [ecx]
inc ecx
test al, al
jne 0x100287b0
sub ecx, edx
lea eax, [ebp - 0x2b]
push ecx
push eax
lea ecx, [ebp - 0x48]
call fcn.10005220
mov byte [ebp - 4], 2
mov edi, dword [esi + 0xc]
test edi, edi
je 0x100287ea
push 4
push edi
call dword [sym.imp.KERNEL32.dll_IsBadReadPtr]
test eax, eax
jne 0x100287ea
lea eax, [ebp - 0x48]
mov ecx, edi
push eax
call dword [0x10075274]
mov byte [ebp - 4], 0
mov ecx, dword [ebp - 0x34]
cmp ecx, 0xf
jbe 0x10028824
mov edx, dword [ebp - 0x48]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x1002881a
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x1002881a
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
push ecx
push edx
call fcn.100662c0
add esp, 8
cmp dword [ebx + 0x1c], 0
jne 0x1002892a
mov byte [ebp - 0x20], 0x5f
mov cl, 0x36
xor cl, byte [ebp - 0x20]
mov al, 0xc
xor al, byte [ebp - 0x20]
mov dl, 0x3a
mov byte [ebp - 0x1f], al
mov ch, dl
mov byte [ebp - 0x1e], cl
mov dh, 0x7f
mov cl, byte [ebp - 0x20]
mov ah, 0x38
mov byte [ebp - 0x2d], 0x1c
xor dl, cl
mov al, byte [ebp - 0x2d]
xor ch, cl
xor al, cl
mov byte [ebp - 0x2e], 0x33
mov byte [ebp - 0x19], al
xor dh, cl
mov al, byte [ebp - 0x2e]
xor ah, cl
xor al, cl
mov byte [ebp - 0x2f], 0x3e
mov byte [ebp - 0x18], al
xorps xmm0, xmm0
mov al, byte [ebp - 0x2f]
xor al, cl
mov byte [ebp - 0x30], 0x31
mov byte [ebp - 0x17], al
mov al, byte [ebp - 0x30]
xor al, cl
mov byte [ebp - 0x1b], ch
lea ecx, [ebp - 0x1f]
mov byte [ebp - 0x15], 0
mov byte [ebp - 0x1d], dl
mov byte [ebp - 0x1a], dh
lea edx, [ecx + 1]
mov byte [ebp - 0x1c], ah
mov byte [ebp - 0x16], al
mov byte [ebp - 0x15], 0
movups xmmword [ebp - 0x48], xmm0
mov dword [ebp - 0x38], 0
mov dword [ebp - 0x34], 0
mov al, byte [ecx]
inc ecx
test al, al
jne 0x100288b4
sub ecx, edx
lea eax, [ebp - 0x1f]
push ecx
push eax
lea ecx, [ebp - 0x48]
call fcn.10005220
mov byte [ebp - 4], 3
mov edi, dword [esi + 0x10]
test edi, edi
je 0x100288ee
push 4
push edi
call dword [sym.imp.KERNEL32.dll_IsBadReadPtr]
test eax, eax
jne 0x100288ee
lea eax, [ebp - 0x48]
push eax
mov ecx, edi
call dword [0x10075274]
mov byte [ebp - 4], 0
mov ecx, dword [ebp - 0x34]
cmp ecx, 0xf
jbe 0x100289d6
mov edx, dword [ebp - 0x48]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x100289cc
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
jbe 0x100289cc
call dword [sym.imp.api_ms_win_crt_runtime_l1_1_0.dll__invalid_parameter_noinfo_noreturn]
cmp dword [ebx + 0x20], 0xf
lea eax, [ebx + 0xc]
movaps xmm0, xmmword [0x100774c0]
cmova eax, dword [ebx + 0xc]
xor ecx, ecx
push eax
movups xmmword [ebp - 0x28], xmm0
mov word [ebp - 0x18], 0x5e
nop dword [eax]
mov al, byte [ebp - 0x28]
xor byte [ebp + ecx - 0x27], al
inc ecx
cmp ecx, 0x10
jb 0x10028950
sub esp, 0x18
mov byte [ebp - 0x17], 0
mov edx, esp
lea ecx, [ebp - 0x27]
xorps xmm0, xmm0
lea edi, [ecx + 1]
movups xmmword [edx], xmm0
mov dword [edx + 0x10], 0
mov dword [edx + 0x14], 0
mov al, byte [ecx]
inc ecx
test al, al
jne 0x10028980
sub ecx, edi
lea eax, [ebp - 0x27]
push ecx
push eax
mov ecx, edx
call fcn.10005220
lea eax, [ebp - 0x48]
push eax
call fcn.10004db0
add esp, 0x20
mov dword [ebp - 0x4c], eax
mov byte [ebp - 4], 4
mov edi, dword [esi + 0x10]
test edi, edi
je 0x100288ee
push 4
push edi
call dword [sym.imp.KERNEL32.dll_IsBadReadPtr]
test eax, eax
jne 0x100288ee
push dword [ebp - 0x4c]
jmp 0x100288e6
push ecx
push edx
call fcn.100662c0
add esp, 8
mov ecx, dword [esi]
push 2
mov byte [ebp - 0x48], 0
mov dword [ebp - 0x34], 0xf
mov dword [ebp - 0x38], 0
call dword [0x100752c8]
mov ax, word [ebx + 8]
mov ecx, esi
mov word [esi + 0x28], ax
mov byte [esi + 0x21], 1
call fcn.10028cc0
mov ecx, dword [ebx + 0x20]
cmp ecx, 0xf
jbe 0x10028a39
mov edx, dword [ebx + 0xc]
inc ecx
mov eax, edx
cmp ecx, 0x1000
jb 0x10028a2f
mov edx, dword [eax - 4]
add ecx, 0x23
sub eax, edx
add eax, 0xfffffffc
cmp eax, 0x1f
ja 0x10028924
push ecx
push edx
call fcn.100662c0
add esp, 8
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov esp, ebp
pop ebp
mov esp, ebx
pop ebx
ret 0x1c