joyce8/EMBER2024-capa huggingface dataset:
Function at 0x49d6a3
Capabilities:
Set file attributes

Disassembly:
push ebp
mov ebp, esp
push esi
mov esi, dword [ebp + 8]
cmp dword [esi + 0xa8], 5
jne 0x49d6ca
cmp dword [ebp + 0xc], 0
je 0x49d6ca
mov ecx, esi
call fcn.0049d536
mov eax, 0x80004005
jmp 0x49d7ec
xor ecx, ecx
push edi
cmp dword [esi + 0x64], ecx
jne 0x49d6f9
push 0x58dc54
call fcn.0049d994
pop ecx
mov ecx, dword [esi + 0xac]
test ecx, ecx
je 0x49d7e9
mov edx, dword [ecx]
lea eax, [esi + 0x24]
push eax
call dword [edx + 0x14]
jmp 0x49d7e9
cmp byte [esi + 0x74], cl
jne 0x49d70e
cmp byte [esi + 0x80], cl
jne 0x49d70e
cmp byte [esi + 0x8c], cl
je 0x49d775
lea eax, [esi + 0x54]
cmp dword [eax + 0x14], 8
jb 0x49d719
mov eax, dword [eax]
push ecx
push 0x80
push 3
push ecx
push 1
push 0x40000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov edi, eax
cmp edi, 0xffffffff
je 0x49d775
xor edx, edx
lea ecx, [esi + 0x78]
cmp byte [esi + 0x74], dl
cmovne edx, ecx
xor eax, eax
cmp byte [esi + 0x80], al
lea ecx, [esi + 0x84]
push edx
cmovne eax, ecx
xor ecx, ecx
cmp byte [esi + 0x8c], cl
push eax
lea eax, [esi + 0x90]
cmovne ecx, eax
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_SetFileTime]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp byte [esi + 0x6d], 0
je 0x49d790
lea eax, [esi + 0x54]
cmp dword [eax + 0x14], 8
jb 0x49d786
mov eax, dword [eax]
push dword [esi + 0x70]
push eax
call dword [sym.imp.KERNEL32.dll_SetFileAttributesW]
lea edi, [esi + 0x54]
cmp dword [edi + 0x14], 8
mov eax, edi
jb 0x49d79d
mov eax, dword [edi]
push eax
push str.FileDone:_s_n
call fcn.0049d994
pop ecx
pop ecx
mov ecx, dword [esi + 0xac]
test ecx, ecx
je 0x49d7e9
push dword [esi + 0xa4]
mov eax, dword [ecx]
push dword [esi + 0xa0]
push edi
call dword [eax + 0x1c]
test al, al
jne 0x49d7d1
mov eax, 0x80004005
jmp 0x49d7eb
mov ecx, dword [esi + 0xac]
push dword [esi + 0xa4]
push dword [esi + 0xa0]
mov eax, dword [ecx]
push edi
call dword [eax + 0x10]
xor eax, eax
pop edi
pop esi
pop ebp
ret 8
Function at 0x4ada49
Capabilities:
Access peb ldr_data
Get ntdll base address

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x56caa0
mov eax, dword fs:[0]
push eax
push esi
mov eax, dword [0x5d2640]
xor eax, ebp
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov esi, ecx
lea eax, [esi + 0x30]
mov dword [esi], vtable.NCompress::NLzma::CDecoder.0
push 0x5d24e8
push eax
mov dword [esi + 4], vtable.NCompress::NLzma::CDecoder.1.0
mov dword [esi + 8], vtable.NCompress::NLzma::CDecoder.2.0
mov dword [esi + 0xc], vtable.NCompress::NLzma::CDecoder.3.0
mov dword [esi + 0x10], vtable.NCompress::NLzma::CDecoder.4.0
mov dword [esi + 0x14], vtable.NCompress::NLzma::CDecoder.5.0
mov dword [esi + 0x18], vtable.NCompress::NLzma::CDecoder.6.0
call fcn.004cbe6d
push dword [esi + 0x24]
call fcn.0043f146
add esp, 0xc
and dword [ebp - 4], 0
mov ecx, dword [esi + 0x20]
test ecx, ecx
je 0x4adac8
mov eax, dword [ecx]
push ecx
call dword [eax + 8]
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop esi
leave
ret
Function at 0x4b49f7
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x10
push edi
mov edi, ecx
mov dword [ebp - 0xc], edi
and dword [edi + 0x2cb0], 0
cmp dword [edi + 0x2cb8], 2
jne 0x4b4a3d
push 1
lea ecx, [edi + 0x38]
call fcn.004b4971
test eax, eax
je 0x4b4a36
push dword [edi + 0x80]
mov ecx, edi
push dword [edi + 0x7c]
call fcn.004b41e5
jmp 0x4b4bfd
and dword [edi + 0x2cb8], 0
mov edx, dword [edi + 0x38]
mov eax, dword [edi + 0x3c]
push ebx
push 8
pop ecx
sub ecx, edx
mov dword [ebp - 0x10], edx
shr eax, cl
shr eax, 0x10
cmp dword [edi + 0x2ca0], 0x25
movzx eax, al
mov dword [ebp - 8], eax
mov eax, dword [edi + 0x2cac]
jae 0x4b4a79
test eax, eax
mov ebx, 0x58efa8
mov ecx, 0x58ef98
mov eax, 0x58efd8
jmp 0x4b4a8a
test eax, eax
mov ebx, 0x58efc8
mov ecx, 0x58efb8
mov eax, 0x58f014
cmove ebx, ecx
mov dword [ebp - 4], eax
mov eax, dword [eax]
mov ecx, ebx
xor eax, dword [ebp - 8]
mov edx, 0xff
push esi
xor esi, esi
mov cl, byte [ecx]
sar edx, cl
not edx
test eax, edx
je 0x4b4ac6
mov edi, dword [ebp - 4]
inc esi
mov edx, 0xff
mov cl, byte [esi + ebx]
mov eax, dword [edi + esi*4]
xor eax, dword [ebp - 8]
sar edx, cl
not edx
test eax, edx
jne 0x4b4aac
mov edi, dword [ebp - 0xc]
movzx eax, byte [esi + ebx]
lea ebx, [edi + 0x38]
add eax, dword [ebp - 0x10]
mov ecx, ebx
mov dword [ebx], eax
call fcn.004b48e6
cmp esi, 9
jb 0x4b4b7c
jne 0x4b4af8
push dword [edi + 0x80]
inc dword [edi + 0x2cb8]
push dword [edi + 0x7c]
jmp 0x4b4bf4
and dword [edi + 0x2cb8], 0
mov ecx, edi
cmp esi, 0xe
jne 0x4b4b2b
push 0x58ee54
call fcn.004b427d
push 0xf
mov ecx, ebx
lea esi, [eax + 5]
call fcn.004b4971
add eax, 0x7fff
push esi
mov dword [edi + 0x7c], eax
push eax
jmp 0x4b4bee
mov eax, dword [edi + 0x78]
sub eax, esi
inc eax
and eax, 3
push 0x58ee1c
mov ebx, dword [edi + eax*4 + 0x68]
call fcn.004b427d
add eax, 2
cmp eax, 0x101
jne 0x4b4b5f
cmp esi, 0xa
jne 0x4b4b5f
xor dword [edi + 0x2cac], 1
xor eax, eax
jmp 0x4b4bfb
cmp ebx, 0x100
lea ecx, [eax + 1]
cmovb ecx, eax
mov eax, dword [edi + 0x2cc8]
dec eax
cmp ebx, eax
lea esi, [ecx + 1]
cmovb esi, ecx
jmp 0x4b4bd8
mov ecx, dword [edi + 0x2ca0]
and dword [edi + 0x2cb8], 0
add ecx, esi
mov eax, ecx
shr eax, 4
sub ecx, eax
mov dword [edi + 0x2ca0], ecx
mov ecx, edi
push 0x58eefc
call fcn.004b427d
movzx ecx, al
mov ebx, dword [edi + ecx*4 + 0x494]
test al, al
je 0x4b4bd5
dec dword [edi + ebx*4 + 0x1494]
mov eax, dword [edi + ecx*4 + 0x490]
inc dword [edi + eax*4 + 0x1494]
mov dword [edi + ecx*4 + 0x494], eax
mov dword [edi + ecx*4 + 0x490], ebx
add esi, 2
mov eax, dword [edi + 0x78]
push esi
push ebx
mov dword [edi + eax*4 + 0x68], ebx
mov eax, dword [edi + 0x78]
inc eax
mov dword [edi + 0x7c], ebx
and eax, 3
mov dword [edi + 0x78], eax
mov dword [edi + 0x80], esi
mov ecx, edi
call fcn.004b41e5
pop esi
pop ebx
pop edi
leave
ret
Function at 0x4bc081
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
mov ecx, dword [ebp + 8]
xor edx, edx
push esi
mov esi, dword [ebp + 0xc]
push edi
cmp esi, 8
jb 0x4bc0aa
mov edi, esi
shr edi, 3
mov eax, dword [ecx + 4]
sub esi, 8
xor eax, dword [ecx]
add ecx, 8
xor edx, eax
sub edi, 1
jne 0x4bc098
cmp esi, 4
jb 0x4bc0b4
xor edx, dword [ecx]
add ecx, 4
and esi, 3
cmp esi, 2
jbe 0x4bc0c7
movzx eax, byte [ecx]
shl eax, 0x10
xor edx, eax
inc ecx
jmp 0x4bc0d0
mov eax, edx
mov edi, ecx
cmp esi, 1
jbe 0x4bc0db
movzx eax, byte [ecx]
shl eax, 8
xor edx, eax
inc ecx
jmp 0x4bc0e3
mov edx, eax
mov ecx, edi
test esi, esi
je 0x4bc0e8
movzx ecx, byte [ecx]
xor edx, ecx
pop edi
mov eax, edx
pop esi
pop ebp
ret
Function at 0x4bd197
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ecx
mov eax, dword [ebp + 8]
push ebx
push esi
push edi
mov edi, dword [ebp + 0x18]
or dword [edi], 0xffffffff
cmp dword [eax], 0x23170f69
jne 0x4bd272
mov ecx, 0x40c1
cmp word [eax + 4], cx
jne 0x4bd272
mov ebx, dword [ebp + 0x14]
mov edx, 0x2790
mov byte [ebx], 1
movzx ecx, word [eax + 6]
cmp cx, dx
jne 0x4bd1db
mov byte [ebx], 0
jmp 0x4bd1e9
mov edx, 0x2791
cmp cx, dx
jne 0x4bd272
mov ecx, dword [eax + 8]
xor esi, esi
mov eax, dword [eax + 0xc]
mov dword [ebp + 8], ecx
mov dword [ebp - 4], eax
cmp dword [0x5db130], esi
jbe 0x4bd272
mov ch, byte [ebp + 0x10]
mov eax, dword [ebp + 8]
mov edx, dword [esi*4 + 0x5db138]
cmp eax, dword [edx + 8]
jne 0x4bd248
mov edi, dword [ebp - 4]
cmp edi, dword [edx + 0xc]
mov edi, dword [ebp + 0x18]
jne 0x4bd248
xor eax, eax
cmp byte [ebx], al
je 0x4bd227
cmp dword [edx + 4], eax
jmp 0x4bd229
cmp dword [edx], eax
sete al
test eax, eax
jne 0x4bd245
mov cl, byte [edx + 0x18]
test ch, ch
je 0x4bd23e
test cl, cl
sete al
jmp 0x4bd241
movzx eax, cl
test eax, eax
je 0x4bd253
mov eax, dword [ebp + 8]
inc esi
cmp esi, dword [0x5db130]
jb 0x4bd205
jmp 0x4bd272
movzx eax, byte [ebp + 0xc]
movzx ecx, byte [ebp + 0xc]
xor eax, 1
cmp dword [edx + 0x14], 1
cmove eax, ecx
test eax, eax
je 0x4bd270
mov eax, 0x80004002
jmp 0x4bd274
mov dword [edi], esi
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret

Function at 0x4bda37
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ebx
mov ebx, dword [ebp + 0xc]
push esi
push edi
mov edi, dword [ebp + 8]
mov eax, dword [edi + 0x10]
mov dword [ebp + 8], eax
cmp eax, 3
jae 0x4bda56
push edi
call fcn.004be7a5
jmp 0x4bdaae
mov ecx, dword [edi]
movzx edx, byte [ecx]
movzx eax, byte [ecx + 2]
shl edx, 8
or edx, eax
movzx eax, byte [ecx + 1]
mov ecx, dword [edi + 0x24]
xor edx, dword [edi + eax*4 + 0x60]
mov eax, dword [edi + 4]
movzx edx, dx
mov esi, dword [ecx + edx*4]
mov dword [ecx + edx*4], eax
push dword [edi + 0x30]
push dword [edi + 0x18]
push dword [edi + 0x14]
push dword [edi + 0x28]
push dword [edi]
push dword [edi + 4]
push esi
push dword [ebp + 8]
call fcn.004be924
add esp, 0x20
inc dword [edi + 0x14]
inc dword [edi]
inc dword [edi + 4]
mov eax, dword [edi + 4]
cmp eax, dword [edi + 8]
jne 0x4bdaaf
push edi
call fcn.004be433
pop ecx
sub ebx, 1
jne 0x4bda43
pop edi
pop esi
pop ebx
pop ebp
ret

Function at 0x4be4ad
Capabilities:
Encode data using xor
Hash data with crc32

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 8]
xor ecx, ecx
push esi
push edi
mov dword [eax + 0x34], ecx
lea esi, [eax + 0x60]
mov word [eax + 0x1e], cx
mov dword [eax + 0x24], ecx
mov dword [eax + 0x30], 0x20
mov byte [eax + 0x1d], 1
mov dword [eax + 0x48], 4
push 8
mov edx, ecx
pop edi
mov eax, edx
shr edx, 1
and eax, 1
neg eax
and eax, 0xedb88320
xor edx, eax
sub edi, 1
jne 0x4be4db
mov dword [esi], edx
inc ecx
add esi, 4
cmp ecx, 0x100
jb 0x4be4d6
pop edi
pop esi
pop ebp
ret
Function at 0x4bec04
Capabilities:
Encrypt data using aes
Reference aes constants

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xc
push ebx
push esi
push edi
mov edi, dword [ebp + 8]
mov ebx, ecx
xor esi, esi
lea ecx, [edi + 0x1c]
shr edi, 2
mov eax, edi
mov dword [ebp - 0xc], ecx
shr eax, 1
add eax, 3
mov dword [ebx], eax
add ebx, 0x10
test edi, edi
je 0x4bec3a
mov eax, dword [edx]
lea edx, [edx + 4]
mov dword [ebx + esi*4], eax
inc esi
cmp esi, edi
jb 0x4bec2d
cmp esi, ecx
jae 0x4bed1d
mov eax, esi
sub eax, edi
lea eax, [ebx + eax*4]
mov dword [ebp - 4], eax
xor edx, edx
mov ecx, dword [ebx + esi*4 - 4]
mov eax, esi
mov dword [ebp + 8], ecx
div edi
mov dword [ebp - 8], eax
test edx, edx
jne 0x4becb3
movzx ecx, cl
movzx edx, byte [ecx + str.cw]
mov ecx, dword [ebp + 8]
shr ecx, 0x18
shl edx, 8
movzx eax, byte [ecx + str.cw]
mov ecx, dword [ebp + 8]
or edx, eax
mov eax, ecx
shl edx, 8
shr eax, 0x10
movzx eax, al
shr ecx, 8
movzx eax, byte [eax + str.cw]
or edx, eax
movzx eax, cl
shl edx, 8
movzx ecx, byte [eax + str.cw]
mov eax, dword [ebp - 8]
movzx eax, byte [eax + 0x58f530]
xor ecx, eax
or ecx, edx
jmp 0x4bed03
cmp edi, 6
jbe 0x4bed03
cmp edx, 4
jne 0x4bed03
mov edx, dword [ebp + 8]
mov eax, ecx
shr eax, 0x10
movzx eax, al
movzx ecx, byte [eax + str.cw]
mov eax, edx
shr eax, 0x18
movzx eax, byte [eax + str.cw]
shl eax, 8
or ecx, eax
mov eax, edx
shr eax, 8
movzx eax, al
shl ecx, 8
movzx eax, byte [eax + str.cw]
or ecx, eax
movzx eax, dl
shl ecx, 8
movzx eax, byte [eax + str.cw]
or ecx, eax
mov edx, dword [ebp - 4]
mov eax, dword [edx]
add edx, 4
xor eax, ecx
mov dword [ebp - 4], edx
mov dword [ebx + esi*4], eax
inc esi
cmp esi, dword [ebp - 0xc]
jb 0x4bec4c
pop edi
pop esi
pop ebx
leave
ret 4
Function at 0x4bf853
Capabilities:
Hash data using sha256

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 8]
and dword [eax + 0x20], 0
and dword [eax + 0x24], 0
mov dword [eax], 0x6a09e667
mov dword [eax + 4], 0xbb67ae85
mov dword [eax + 8], 0x3c6ef372
mov dword [eax + 0xc], 0xa54ff53a
mov dword [eax + 0x10], 0x510e527f
mov dword [eax + 0x14], 0x9b05688c
mov dword [eax + 0x18], 0x1f83d9ab
mov dword [eax + 0x1c], 0x5be0cd19
pop ebp
ret

Function at 0x4c7e80
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ecx
mov edx, dword [ebp + 8]
push esi
push edi
mov edi, dword [ebp + 0x10]
mov esi, dword [edx + 4]
mov ecx, dword [edx]
add esi, 2
lea esi, [edx + esi*4]
mov dword [ebp - 4], esi
test edi, edi
je 0x4c7f16
push ebx
mov ebx, dword [ebp + 0xc]
cmp ecx, 0x10
je 0x4c7ebb
mov al, byte [esi + ecx]
xor byte [ebx], al
inc ecx
inc ebx
sub edi, 1
je 0x4c7eb8
cmp ecx, 0x10
jne 0x4c7ea7
mov dword [ebp + 0x10], edi
cmp edi, 0x10
jb 0x4c7ee4
mov ecx, dword [ebp - 4]
mov esi, edi
shr esi, 4
add ecx, 0x10
push esi
mov edx, ebx
call dword [0x5ee650]
shl esi, 4
add ebx, esi
sub edi, esi
mov esi, dword [ebp - 4]
push 0x10
mov dword [ebp + 0x10], edi
pop ecx
test edi, edi
je 0x4c7f10
xor eax, eax
lea ecx, [esi + 0x10]
mov edi, esi
mov edx, esi
push 1
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
stosd dword es:[edi], eax
call dword [0x5ee650]
mov edx, dword [ebp + 0x10]
xor ecx, ecx
sub esi, ebx
mov al, byte [esi + ebx]
xor byte [ebx], al
inc ecx
inc ebx
sub edx, 1
jne 0x4c7f04
mov eax, dword [ebp + 8]
pop ebx
mov dword [eax], ecx
pop edi
pop esi
leave
ret

Function at 0x4c823e
Capabilities:
Encode data using xor
Generate random numbers using the delphi lcg

Disassembly:
push ebp
mov ebp, esp
push esi
push edi
xor edi, edi
mov ecx, 0x12345678
mov esi, 0x23456789
mov edx, 0x34567890
cmp dword [ebp + 0x10], edi
jbe 0x4c8297
push ebx
mov ebx, dword [ebp + 0xc]
movzx eax, byte [edi + ebx]
xor eax, ecx
shr ecx, 8
movzx eax, al
xor ecx, dword [eax*4 + 0x5ee680]
movzx eax, cl
add eax, esi
imul esi, eax, 0x8088405
inc esi
mov eax, esi
shr eax, 0x18
xor eax, edx
shr edx, 8
movzx eax, al
xor edx, dword [eax*4 + 0x5ee680]
inc edi
cmp edi, dword [ebp + 0x10]
jb 0x4c825d
pop ebx
mov eax, dword [ebp + 8]
pop edi
mov dword [eax + 0x18], esi
mov dword [eax + 0x14], ecx
mov dword [eax + 0x1c], edx
xor eax, eax
pop esi
pop ebp
ret 0xc
Function at 0x4c82ab
Capabilities:
Encode data using xor
Generate random numbers using the delphi lcg

Disassembly:
push ebp
mov ebp, esp
push ecx
push ecx
mov edx, dword [ebp + 8]
and dword [ebp - 4], 0
push ebx
push esi
mov ebx, dword [edx + 0xc]
mov eax, dword [edx + 0x10]
mov esi, dword [edx + 0x14]
push edi
mov edi, dword [ebp + 0x10]
test edi, edi
je 0x4c8331
mov edx, eax
mov edi, dword [ebp + 0xc]
mov eax, esi
or eax, 2
mov ecx, eax
xor ecx, 1
imul ecx, eax
mov eax, dword [ebp - 4]
shr ecx, 8
xor cl, byte [eax + edi]
movzx eax, cl
xor eax, ebx
shr ebx, 8
movzx eax, al
xor ebx, dword [eax*4 + 0x5ee680]
movzx eax, bl
add eax, edx
imul edx, eax, 0x8088405
inc edx
mov eax, edx
shr eax, 0x18
xor eax, esi
shr esi, 8
movzx eax, al
xor esi, dword [eax*4 + 0x5ee680]
mov eax, dword [ebp - 4]
mov byte [eax + edi], cl
inc eax
mov edi, dword [ebp + 0x10]
mov dword [ebp - 4], eax
cmp eax, edi
jb 0x4c82cc
mov dword [ebp - 8], edx
mov edx, dword [ebp + 8]
mov eax, dword [ebp - 8]
mov dword [edx + 0x10], eax
mov eax, edi
pop edi
mov dword [edx + 0x14], esi
pop esi
mov dword [edx + 0xc], ebx
pop ebx
leave
ret 0xc

Function at 0x4c8343
Capabilities:
Encode data using xor
Generate random numbers using the delphi lcg

Disassembly:
push ebp
mov ebp, esp
push ecx
push ecx
push ebx
push esi
mov esi, dword [ebp + 8]
xor ecx, ecx
push edi
mov dword [ebp - 4], ecx
mov eax, dword [esi + 0x10]
mov ebx, dword [esi + 0xc]
mov edi, dword [esi + 0x14]
mov dword [ebp - 8], eax
cmp dword [ebp + 0x10], ecx
jbe 0x4c83cd
mov eax, dword [ebp + 0xc]
mov esi, dword [ebp + 0xc]
mov dl, byte [ecx + eax]
mov eax, edi
or eax, 2
mov ecx, eax
xor ecx, 1
imul ecx, eax
mov eax, dword [ebp - 4]
shr ecx, 8
xor cl, dl
mov byte [eax + esi], cl
movzx eax, dl
xor eax, ebx
mov ecx, dword [ebp - 4]
movzx eax, al
shr ebx, 8
xor ebx, dword [eax*4 + 0x5ee680]
movzx eax, bl
add eax, dword [ebp - 8]
imul esi, eax, 0x8088405
inc esi
mov eax, esi
mov dword [ebp - 8], esi
shr eax, 0x18
xor eax, edi
shr edi, 8
movzx eax, al
xor edi, dword [eax*4 + 0x5ee680]
inc ecx
mov dword [ebp - 4], ecx
cmp ecx, dword [ebp + 0x10]
jb 0x4c8364
mov esi, dword [ebp + 8]
mov eax, dword [ebp - 8]
mov dword [esi + 0x14], edi
pop edi
mov dword [esi + 0xc], ebx
mov dword [esi + 0x10], eax
mov eax, dword [ebp + 0x10]
pop esi
pop ebx
leave
ret 0xc

Function at 0x4c849e
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 0xa4
mov eax, dword [0x5d2640]
xor eax, ebp
mov dword [ebp - 4], eax
movzx eax, byte [ebp + 0xc]
push esi
push edi
mov edi, dword [ebp + 0x10]
push 0x40
push eax
lea eax, [ebp - 0x44]
push eax
call fcn.0051e6d0
mov esi, dword [ebp + 8]
lea eax, [ebp - 0x44]
add esp, 0xc
xor edx, edx
sub esi, eax
lea ecx, [ebp - 0x44]
add ecx, edx
mov al, byte [esi + ecx]
xor byte [ecx], al
inc edx
cmp edx, 0x14
jb 0x4c84d3
lea eax, [ebp - 0xa4]
push eax
call fcn.004dc643
push 0x40
lea eax, [ebp - 0x44]
push eax
lea eax, [ebp - 0xa4]
push eax
call fcn.004dc675
lea eax, [ebp - 0xa4]
push edi
push eax
call fcn.004dbd2b
mov ecx, dword [ebp - 4]
add esp, 0x18
xor ecx, ebp
pop edi
pop esi
call fcn.0050f496
leave
ret
Function at 0x4ca24b
Capabilities:
Encrypt data using rc4 prga

Disassembly:
push ebp
mov ebp, esp
push ecx
mov edx, dword [ebp + 0x14]
mov eax, dword [ebp + 0xc]
push edi
xor edi, edi
mov edx, dword [edx]
and edx, 7
cmp eax, 5
jae 0x4ca269
xor eax, eax
jmp 0x4ca38f
add dword [ebp + 0x10], 5
lea ecx, [eax - 4]
push ebx
mov ebx, dword [ebp + 8]
add ecx, ebx
push esi
mov dword [ebp + 0xc], ecx
lea esi, [edi + ebx]
jmp 0x4ca288
mov al, byte [esi]
and al, 0xfe
cmp al, 0xe8
je 0x4ca28c
inc esi
cmp esi, ecx
jb 0x4ca27f
mov ecx, esi
sub ecx, edi
mov edi, esi
sub ecx, ebx
sub edi, ebx
cmp esi, dword [ebp + 0xc]
jae 0x4ca37c
cmp ecx, 2
jbe 0x4ca316
xor edx, edx
movzx ecx, byte [esi + 4]
lea eax, [ecx + 1]
test al, 0xfe
jne 0x4ca370
movzx eax, byte [esi + 3]
mov ebx, dword [ebp + 0x10]
shl ecx, 8
add ebx, edi
or ecx, eax
movzx eax, byte [esi + 2]
shl ecx, 8
or ecx, eax
movzx eax, byte [esi + 1]
shl ecx, 8
or ecx, eax
mov eax, ecx
add ecx, ebx
sub eax, ebx
cmp dword [ebp + 0x18], 0
cmove ecx, eax
mov dword [ebp - 4], ecx
mov ebx, ecx
test edx, edx
je 0x4ca34a
and edx, 6
mov eax, ecx
shl edx, 2
mov ecx, edx
shr eax, cl
inc eax
test al, 0xfe
jne 0x4ca348
mov eax, dword [ebp + 0x10]
mov ebx, 0x100
shl ebx, cl
add eax, edi
dec ebx
xor ebx, dword [ebp - 4]
cmp dword [ebp + 0x18], 0
je 0x4ca346
add ebx, eax
jmp 0x4ca348
shr edx, cl
test edx, edx
je 0x4ca2a6
cmp edx, 4
ja 0x4ca338
cmp edx, 3
je 0x4ca338
mov eax, edx
shr eax, 1
movzx eax, byte [eax + esi + 1]
inc eax
test al, 0xfe
jne 0x4ca2a6
or edx, 8
shr edx, 1
inc edi
mov ecx, dword [ebp + 0xc]
jmp 0x4ca27a
sub ebx, eax
xor edx, edx
mov eax, ebx
mov byte [esi + 1], bl
shr eax, 8
mov byte [esi + 2], al
mov eax, ebx
shr ebx, 0x18
shr eax, 0x10
and bl, 1
neg bl
mov byte [esi + 3], al
push 5
mov byte [esi + 4], bl
mov ebx, dword [ebp + 8]
pop eax
jmp 0x4ca378
or edx, 8
xor eax, eax
shr edx, 1
inc eax
add edi, eax
jmp 0x4ca33e
xor eax, eax
shr edx, cl
cmp ecx, 2
pop esi
cmova edx, eax
mov eax, dword [ebp + 0x14]
pop ebx
mov dword [eax], edx
mov eax, edi
pop edi
leave
ret
Function at 0x4cdf3e
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ebx
mov ebx, dword [ebp + 0x14]
push esi
mov esi, dword [ebp + 0x10]
push edi
mov edi, 0x100
or esi, edi
mov eax, esi
add ebx, ebx
shr eax, 7
mov ecx, edi
and eax, 1
and ecx, ebx
push eax
mov eax, esi
add ecx, edi
shr eax, 8
add eax, ecx
mov ecx, dword [ebp + 0xc]
lea eax, [ecx + eax*2]
push eax
push dword [ebp + 8]
call fcn.004cf1ac
add esi, esi
add esp, 0xc
mov eax, esi
xor eax, ebx
not eax
and edi, eax
cmp esi, 0x10000
jb 0x4cdf51
pop edi
pop esi
pop ebx
pop ebp
ret

Function at 0x4cdf92
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ebx
mov ebx, dword [ebp + 0x10]
push esi
mov esi, dword [ebp + 0xc]
push edi
xor edi, edi
or esi, 0x100
mov ecx, dword [ebp + 8]
mov eax, esi
shr eax, 8
movzx edx, word [ecx + eax*2]
mov ecx, esi
shr ecx, 7
add esi, esi
and ecx, 1
shr edx, 4
neg ecx
sar ecx, 4
and ecx, 0x7f
xor edx, ecx
add edi, dword [ebx + edx*4]
cmp esi, 0x10000
jb 0x4cdfa6
mov eax, edi
pop edi
pop esi
pop ebx
pop ebp
ret

Function at 0x4cdfdb
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
mov edx, dword [ebp + 0xc]
push ebx
mov ebx, dword [ebp + 0x10]
push esi
push edi
mov esi, 0x100
xor edi, edi
or edx, esi
add ebx, ebx
mov ecx, esi
and ecx, ebx
mov eax, edx
add ecx, esi
shr eax, 8
add eax, ecx
mov ecx, dword [ebp + 8]
movzx ecx, word [ecx + eax*2]
mov eax, edx
shr eax, 7
add edx, edx
and eax, 1
shr ecx, 4
neg eax
sar eax, 4
and eax, 0x7f
xor ecx, eax
mov eax, dword [ebp + 0x14]
add edi, dword [eax + ecx*4]
mov ecx, edx
xor ecx, ebx
not ecx
and esi, ecx
cmp edx, 0x10000
jb 0x4cdff0
mov eax, edi
pop edi
pop esi
pop ebx
pop ebp
ret

Function at 0x4cf2f1
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
mov eax, dword [ebp + 0xc]
push esi
mov esi, dword [ebp + 0x10]
push edi
bts esi, eax
xor edi, edi
cmp esi, 1
je 0x4cf330
mov eax, dword [ebp + 0x14]
push ebx
mov ebx, dword [ebp + 8]
mov edx, esi
and esi, 1
shr edx, 1
neg esi
sar esi, 4
and esi, 0x7f
movzx ecx, word [ebx + edx*2]
shr ecx, 4
xor ecx, esi
mov esi, edx
add edi, dword [eax + ecx*4]
cmp esi, 1
jne 0x4cf30d
pop ebx
mov eax, edi
pop edi
pop esi
pop ebp
ret

Function at 0x4cf377
Capabilities:
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
push ebx
mov ebx, dword [ebp + 0xc]
push esi
push edi
xor edi, edi
xor esi, esi
inc edi
test ebx, ebx
je 0x4cf3bb
mov eax, dword [ebp + 0x10]
mov edx, eax
shr eax, 1
and edx, 1
mov dword [ebp + 0x10], eax
mov eax, dword [ebp + 8]
movzx ecx, word [eax + edi*2]
mov eax, edx
neg eax
shr ecx, 4
sar eax, 4
add edi, edi
and eax, 0x7f
or edi, edx
xor ecx, eax
mov eax, dword [ebp + 0x14]
add esi, dword [eax + ecx*4]
sub ebx, 1
jne 0x4cf389
pop edi
mov eax, esi
pop esi
pop ebx
pop ebp
ret