joyce8/EMBER2024-capa huggingface dataset:
Function at 0x4ef5f0
Capabilities:
Authenticate hmac
Encode data using xor

Disassembly:
push ebp
mov ebp, esp
sub esp, 8
push esi
mov esi, dword [ebp + 8]
push edi
mov ecx, dword [esi + 0xc]
mov eax, dword [esi + 0x14]
lea eax, [eax + ecx*2]
add eax, 0xc
push eax
call dword [section..data]
mov edi, eax
add esp, 4
test edi, edi
jne 0x4ef61d
pop edi
pop esi
mov esp, ebp
pop ebp
ret
lea ecx, [edi + 0xc]
mov dword [edi], esi
mov dword [edi + 4], ecx
mov eax, dword [esi + 0xc]
add eax, ecx
push ebx
mov ebx, dword [ebp + 0x10]
mov dword [edi + 8], eax
cmp ebx, dword [esi + 0x10]
jbe 0x4ef664
mov eax, dword [esi]
push ecx
call eax
mov eax, dword [esi + 4]
push ebx
push dword [ebp + 0xc]
push dword [edi + 4]
call eax
mov eax, dword [edi + 8]
add eax, dword [esi + 0xc]
push dword [edi + 4]
mov dword [ebp - 4], eax
push eax
mov eax, dword [esi + 8]
call eax
mov ebx, dword [esi + 0x14]
add esp, 0x18
mov dword [ebp + 0x10], ebx
jmp 0x4ef66a
mov eax, dword [ebp + 0xc]
mov dword [ebp - 4], eax
push dword [edi + 4]
mov eax, dword [esi]
call eax
push dword [edi + 8]
mov eax, dword [esi]
call eax
mov eax, dword [ebp + 0x10]
add esp, 8
xor ebx, ebx
test eax, eax
je 0x4ef6cb
mov ebx, dword [ebp - 4]
mov dword [ebp - 8], eax
nop word [eax + eax]
movzx eax, byte [ebx]
xor al, 0x36
mov byte [ebp + 0xb], al
lea eax, [ebp + 0xb]
push 1
push eax
push dword [edi + 4]
mov eax, dword [esi + 4]
call eax
movzx eax, byte [ebx]
lea ebx, [ebx + 1]
xor al, 0x5c
mov byte [ebp + 0xb], al
lea eax, [ebp + 0xb]
push 1
push eax
push dword [edi + 8]
mov eax, dword [esi + 4]
call eax
add esp, 0x18
sub dword [ebp + 0x10], 1
jne 0x4ef690
mov ebx, dword [ebp - 8]
cmp ebx, dword [esi + 0x10]
jae 0x4ef6f7
mov eax, dword [esi + 4]
push 1
push 0x5b281f
push dword [edi + 4]
call eax
mov eax, dword [esi + 4]
push 1
push 0x5b2820
push dword [edi + 8]
call eax
inc ebx
add esp, 0x18
cmp ebx, dword [esi + 0x10]
jb 0x4ef6d0
pop ebx
mov eax, edi
pop edi
pop esi
mov esp, ebp
pop ebp
ret
Function at 0x504490
Capabilities:
Encode data using base64

Disassembly:
mov eax, dword [esp + 4]
push ebx
push esi
mov esi, dword [esp + 0x14]
xor ebx, ebx
test esi, esi
jle 0x50457c
push edi
mov edi, dword [esp + 0x14]
inc edi
nop word [eax + eax]
movzx edx, byte [edi - 1]
cmp esi, 3
jl 0x50450e
movzx ecx, byte [edi]
shl edx, 8
or edx, ecx
movzx ecx, byte [edi + 1]
shl edx, 8
or edx, ecx
mov ecx, edx
shr ecx, 0x12
and ecx, 0x3f
movzx ecx, byte [ecx + 0x5b5db8]
mov byte [eax], cl
mov ecx, edx
shr ecx, 0xc
and ecx, 0x3f
movzx ecx, byte [ecx + 0x5b5db8]
mov byte [eax + 1], cl
mov ecx, edx
shr ecx, 6
and ecx, 0x3f
and edx, 0x3f
movzx ecx, byte [ecx + 0x5b5db8]
mov byte [eax + 2], cl
movzx ecx, byte [edx + 0x5b5db8]
mov byte [eax + 3], cl
jmp 0x50455f
shl edx, 0x10
cmp esi, 2
jne 0x50451e
movzx ecx, byte [edi]
shl ecx, 8
or edx, ecx
mov ecx, edx
shr ecx, 0x12
and ecx, 0x3f
movzx ecx, byte [ecx + 0x5b5db8]
mov byte [eax], cl
mov ecx, edx
shr ecx, 0xc
and ecx, 0x3f
movzx ecx, byte [ecx + 0x5b5db8]
mov byte [eax + 1], cl
cmp esi, 1
jne 0x50454b
lea ecx, [esi + 0x3c]
jmp 0x504558
shr edx, 6
and edx, 0x3f
movzx ecx, byte [edx + 0x5b5db8]
mov byte [eax + 2], cl
mov byte [eax + 3], 0x3d
sub esi, 3
add eax, 4
add ebx, 4
add edi, 3
test esi, esi
jg 0x5044b0
pop edi
mov byte [eax], 0
mov eax, ebx
pop esi
pop ebx
ret
mov byte [eax], bl
mov eax, ebx
pop esi
pop ebx
ret
Function at 0x507380
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0xa8
call fcn.00551530
mov eax, dword [0x6039b0]
xor eax, esp
mov dword [esp + 0xa4], eax
mov eax, dword [esp + 0xac]
push ebx
mov dword [esp + 0x24], eax
mov eax, dword [esp + 0xb4]
push ebp
push esi
mov esi, dword [esp + 0xc4]
xor ebp, ebp
mov eax, dword [eax + 4]
push edi
mov edi, dword [esp + 0xc4]
mov dword [esp + 0x14], eax
sub eax, edi
mov dword [esp + 0x10], eax
cmp esi, edi
jae 0x5073e6
push str.orig_len___md_size
push 0xf8
push str.._ssl_s3_cbc.c
call fcn.004bc210
add esp, 0xc
cmp edi, 0x40
jbe 0x507402
push str.md_size___EVP_MAX_MD_SIZE
push 0xf9
push str.._ssl_s3_cbc.c
call fcn.004bc210
add esp, 0xc
lea eax, [esp + 0x34]
neg eax
lea ebx, [esp + 0x34]
and eax, 0x3f
add ebx, eax
lea eax, [edi + 0x100]
mov dword [esp + 0x1c], ebx
cmp esi, eax
jbe 0x507429
mov ebp, esi
sub ebp, edi
sub ebp, 0x100
mov eax, edi
xor edx, edx
and eax, 0xfffffffe
shl eax, 0x17
sub eax, ebp
add eax, dword [esp + 0x10]
div edi
push edi
mov esi, edx
push 0
push ebx
mov dword [esp + 0x38], esi
call fcn.00553bc0
add esp, 0xc
mov dword [esp + 0x18], 0
cmp ebp, dword [esp + 0xc8]
jae 0x50751f
mov ecx, dword [esp + 0x10]
mov edx, ecx
mov ebx, dword [esp + 0x14]
mov esi, ebx
mov eax, dword [esp + 0xc0]
sub esi, ecx
shr edx, 0x1f
mov dword [esp + 0x24], edx
mov edx, ebx
shr edx, 0x1f
mov eax, dword [eax + 0xc]
mov dword [esp + 0x14], edx
mov edx, ebp
sub edx, ebx
mov dword [esp + 0x20], esi
mov esi, dword [esp + 0x1c]
add eax, ebx
mov dword [esp + 0x10], edx
mov dword [esp + 0x28], eax
mov ebx, dword [esp + 0x20]
mov ecx, ebp
mov eax, dword [esp + 0x24]
inc ebp
shr ecx, 0x1f
lea ebx, [ebx + edx]
shr edx, 0x1f
xor dl, byte [esp + 0x14]
shr ebx, 0x1f
xor bl, al
xor al, cl
or bl, al
mov al, cl
xor al, byte [esp + 0x14]
xor bl, cl
or dl, al
dec bl
mov eax, dword [esp + 0x10]
xor dl, cl
mov ecx, dword [esp + 0x28]
dec dl
not dl
mov al, byte [ecx + eax]
mov ecx, dword [esp + 0x18]
and dl, al
and dl, bl
or byte [ecx + esi], dl
mov edx, ecx
inc edx
mov ecx, edx
mov eax, edx
sub ecx, edi
xor eax, edi
xor ecx, edi
or ecx, eax
xor ecx, edx
shr ecx, 0x1f
neg ecx
and edx, ecx
mov dword [esp + 0x18], edx
mov edx, dword [esp + 0x10]
inc edx
mov dword [esp + 0x10], edx
cmp ebp, dword [esp + 0xc8]
jb 0x5074a0
mov esi, dword [esp + 0x2c]
mov ebx, dword [esp + 0x1c]
xor edx, edx
test edi, edi
je 0x50755a
mov ebp, dword [esp + 0x30]
nop dword [eax]
mov eax, esi
xor eax, 0x20
mov al, byte [eax + ebx]
movzx eax, byte [esi + ebx]
inc esi
mov byte [edx + ebp], al
mov ecx, esi
sub ecx, edi
mov eax, esi
xor ecx, edi
xor eax, edi
or ecx, eax
inc edx
xor ecx, esi
shr ecx, 0x1f
neg ecx
and esi, ecx
cmp edx, edi
jb 0x507530
mov ecx, dword [esp + 0xb4]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0055042c
add esp, 0xa8
ret
Function at 0x507fd0
Capabilities:
Encode data using xor

Disassembly:
mov eax, 8
call fcn.00551530
push ebp
mov ebp, dword [esp + 0x1c]
push esi
mov esi, dword [esp + 0x18]
inc ebp
push edi
mov edi, dword [esp + 0x18]
mov eax, dword [edi + 8]
mov eax, dword [eax + 0x64]
test byte [eax + 0x38], 1
je 0x50801a
mov ecx, dword [esp + 0x20]
mov edx, dword [esi + 4]
lea eax, [ecx + ebp]
cmp eax, edx
jbe 0x50800d
pop edi
pop esi
xor eax, eax
pop ebp
add esp, 8
ret
add dword [esi + 0xc], ecx
add dword [esi + 0x10], ecx
sub edx, ecx
mov dword [esi + 4], edx
jmp 0x50801f
cmp ebp, dword [esi + 4]
ja 0x508004
test dword [edi + 0x100], 0x200
mov ecx, dword [esi + 0xc]
mov eax, dword [esi + 4]
push ebx
movzx ebx, byte [ecx + eax - 1]
je 0x508072
cmp dword [edi + 0x88], 0
jne 0x508072
mov eax, dword [edi + 0x58]
push 8
add eax, 8
push 0x5b5fc4
push eax
call fcn.004bbf40
add esp, 0xc
test eax, eax
jne 0x508065
test bl, 1
jne 0x508065
mov eax, dword [edi + 0x58]
or dword [eax], 8
mov eax, dword [edi + 0x58]
test byte [eax], 8
je 0x508072
test ebx, ebx
je 0x508072
dec ebx
mov eax, dword [edi + 0x80]
push dword [eax]
call fcn.004fb720
add esp, 4
test eax, 0x200000
je 0x50809e
or eax, 0xffffffff
sub eax, ebx
add dword [esi + 4], eax
mov eax, 1
pop ebx
pop edi
pop esi
pop ebp
add esp, 8
ret
lea ecx, [ebx + ebp]
mov ebp, dword [esi + 4]
mov edx, ebp
mov dword [esp + 0x14], ebp
sub edx, ecx
mov eax, ebp
xor edx, ecx
xor eax, ecx
or edx, eax
mov ecx, 0xff
xor edx, ebp
lea eax, [ebp - 1]
shr edx, 0x1f
dec edx
cmp eax, ecx
mov dword [esp + 0x1c], edx
cmovb ecx, eax
xor edi, edi
mov dword [esp + 0x10], ecx
test ecx, ecx
je 0x508129
mov ecx, ebx
dec ebp
shr ecx, 0x1f
add ebp, dword [esi + 0xc]
mov esi, dword [esp + 0x10]
mov dword [esp + 0x28], ecx
mov al, byte [esp + 0x28]
lea ebp, [ebp - 1]
mov edx, ebx
mov ecx, edi
sub edx, edi
shr ecx, 0x1f
shr edx, 0x1f
xor al, cl
xor dl, cl
inc edi
or dl, al
movzx eax, byte [ebp + 1]
xor dl, byte [esp + 0x28]
xor eax, ebx
dec dl
movzx ecx, dl
mov edx, dword [esp + 0x1c]
and ecx, eax
not ecx
and edx, ecx
mov dword [esp + 0x1c], edx
cmp edi, esi
jb 0x5080e6
mov esi, dword [esp + 0x20]
mov ebp, dword [esp + 0x14]
not edx
movzx eax, dl
lea ecx, [eax - 1]
not eax
shr eax, 0x1f
shr ecx, 0x1f
and ecx, eax
lea eax, [ebx + 1]
neg ecx
and eax, ecx
sub ebp, eax
shl eax, 8
or dword [esi], eax
mov eax, ecx
pop ebx
pop edi
mov dword [esi + 4], ebp
and eax, 1
not ecx
pop esi
or eax, ecx
pop ebp
add esp, 8
ret
Function at 0x508540
Capabilities:
Encode data using xor

Disassembly:
mov eax, 0x10
call fcn.00551530
push ebx
push esi
push edi
lea eax, [esp + 0x14]
xor esi, esi
push eax
lea eax, [esp + 0x10]
xor edi, edi
push eax
push esi
call fcn.004aba90
add esp, 0xc
test eax, eax
je 0x50874b
mov ebx, dword [esp + 0x20]
mov eax, dword [esp + 0xc]
shl eax, 0xa
test ebx, eax
je 0x50857c
inc edi
lea eax, [esp + 0x14]
inc esi
push eax
lea eax, [esp + 0x10]
push eax
push esi
call fcn.004aba90
add esp, 0xc
test eax, eax
jne 0x508570
test edi, edi
je 0x50874b
mov ecx, dword [esp + 0x50]
mov eax, ecx
cdq
idiv edi
push ebp
mov ebp, dword [esp + 0x58]
mov esi, eax
xor eax, eax
mov dword [esp + 0x14], esi
cmp edi, 1
mov edi, dword [esp + 0x60]
push edi
push eax
cmove ecx, eax
push ebp
mov dword [esp + 0x60], ecx
call fcn.00553bc0
lea eax, [esp + 0x24]
mov dword [esp + 0x28], 0
push eax
lea eax, [esp + 0x20]
push eax
push 0
call fcn.004aba90
add esp, 0x18
test eax, eax
je 0x508716
mov ebx, dword [esp + 0x5c]
mov eax, dword [esp + 0x10]
shl eax, 0xa
test dword [esp + 0x24], eax
je 0x5086f2
mov ecx, dword [esp + 0x18]
test ecx, ecx
je 0x508723
push edi
push ebx
push dword [esp + 0x54]
mov eax, dword [esp + 0x60]
push dword [esp + 0x54]
and eax, 1
push dword [esp + 0x54]
add eax, esi
mov esi, dword [esp + 0x64]
push dword [esp + 0x54]
push dword [esp + 0x54]
push dword [esp + 0x54]
push dword [esp + 0x54]
push dword [esp + 0x54]
push dword [esp + 0x54]
push dword [esp + 0x54]
push eax
push esi
push ecx
call fcn.00508770
add esp, 0x3c
test eax, eax
je 0x508741
add esi, dword [esp + 0x14]
xor ecx, ecx
mov dword [esp + 0x50], esi
test edi, edi
jle 0x5086ee
cmp edi, 0x20
jb 0x5086cb
lea eax, [ebx - 1]
lea edx, [ebp - 1]
add eax, edi
add edx, edi
cmp ebp, eax
ja 0x508680
cmp edx, ebx
jae 0x5086cb
mov eax, edi
and eax, 0x8000001f
jns 0x50868e
dec eax
or eax, 0xffffffe0
inc eax
mov edx, edi
mov esi, ebx
sub edx, eax
mov eax, ebp
sub esi, ebp
nop dword [eax + eax]
movups xmm0, xmmword [eax]
lea eax, [eax + 0x20]
movups xmm1, xmmword [esi + eax - 0x20]
pxor xmm1, xmm0
movups xmmword [eax - 0x20], xmm1
movups xmm1, xmmword [ebx + ecx + 0x10]
add ecx, 0x20
movups xmm0, xmmword [eax - 0x10]
pxor xmm1, xmm0
movups xmmword [eax - 0x10], xmm1
cmp ecx, edx
jl 0x5086a0
cmp ecx, edi
jge 0x5086ee
mov esi, ebx
lea eax, [ecx + ebp]
mov edx, edi
sub esi, ebp
sub edx, ecx
nop word [eax + eax]
mov cl, byte [eax + esi]
lea eax, [eax + 1]
xor byte [eax - 1], cl
sub edx, 1
jne 0x5086e0
mov esi, dword [esp + 0x14]
mov eax, dword [esp + 0x1c]
lea ecx, [esp + 0x18]
push ecx
lea ecx, [esp + 0x14]
inc eax
push ecx
push eax
mov dword [esp + 0x28], eax
call fcn.004aba90
add esp, 0xc
test eax, eax
jne 0x5085f0
mov eax, 1
pop ebp
pop edi
pop esi
pop ebx
add esp, 0x10
ret
push 0x114
push str.._ssl_t1_enc.c
push 0x146
push 0x11c
push 0x14
call fcn.004b5e40
add esp, 0x14
pop ebp
pop edi
pop esi
xor eax, eax
pop ebx
add esp, 0x10
ret
push 0x109
push str.._ssl_t1_enc.c
push 0x44
push 0x11c
push 0x14
call fcn.004b5e40
add esp, 0x14
xor eax, eax
pop edi
pop esi
pop ebx
add esp, 0x10
ret
Function at 0x50a570
Capabilities:
Authenticate hmac
Encode data using xor

Disassembly:
mov eax, 0x8c
call fcn.00551530
mov eax, dword [0x6039b0]
xor eax, esp
mov dword [esp + 0x88], eax
mov edx, dword [esp + 0xa0]
xor eax, eax
push ebx
mov ebx, dword [esp + 0x9c]
push ebp
mov ebp, dword [esp + 0x9c]
push esi
mov esi, dword [esp + 0x9c]
push edi
mov edi, dword [esp + 0xac]
mov dword [esp + 0x10], edx
test edi, edi
je 0x50a5d6
cmp edi, dword [esi]
je 0x50a5cd
test ebp, ebp
je 0x50a650
test ebx, ebx
js 0x50a650
mov eax, 1
mov dword [esi], edi
jmp 0x50a5dc
mov edi, dword [esi]
test edi, edi
je 0x50a650
test ebp, ebp
je 0x50a76b
push edi
call fcn.004c89f0
add esp, 4
mov dword [esp + 0x14], eax
cmp eax, 0x80
jle 0x50a610
push str.j____int_sizeof_ctx__key_
push 0x74
push str..cryptohmachmac.c
call fcn.004bc210
mov eax, dword [esp + 0x20]
add esp, 0xc
cmp eax, ebx
jge 0x50a66b
push dword [esp + 0x10]
lea eax, [esi + 4]
push edi
push eax
call fcn.004bf260
add esp, 0xc
test eax, eax
je 0x50a650
push ebx
push ebp
lea ebx, [esi + 4]
push ebx
call fcn.004bf410
add esp, 0xc
test eax, eax
je 0x50a650
lea ebp, [esi + 0x4c]
push ebp
lea eax, [esi + 0x50]
push eax
push ebx
call fcn.004bf1c0
add esp, 0xc
test eax, eax
jne 0x50a687
xor eax, eax
mov ecx, dword [esp + 0x98]
pop edi
pop esi
pop ebp
pop ebx
xor ecx, esp
call fcn.0055042c
add esp, 0x8c
ret
cmp ebx, 0x80
ja 0x50a650
push ebx
lea eax, [esi + 0x50]
push ebp
push eax
call fcn.00553d20
lea ebp, [esi + 0x4c]
add esp, 0xc
mov dword [ebp], ebx
mov ecx, dword [ebp]
cmp ecx, 0x80
je 0x50a6aa
mov eax, 0x80
sub eax, ecx
push eax
lea eax, [esi + 0x50]
add eax, ecx
push 0
push eax
call fcn.00553bc0
add esp, 0xc
mov edx, dword [esp + 0x10]
xor ecx, ecx
mov al, byte [esi + ecx + 0x50]
xor al, 0x36
mov byte [esp + ecx + 0x18], al
inc ecx
cmp ecx, 0x80
jl 0x50a6b0
push edx
lea ebx, [esi + 0x1c]
push edi
push ebx
call fcn.004bf260
add esp, 0xc
test eax, eax
je 0x50a650
push edi
call fcn.004c89f0
push eax
lea eax, [esp + 0x20]
push eax
push ebx
call fcn.004bf410
add esp, 0x10
test eax, eax
je 0x50a650
xor ecx, ecx
nop dword [eax + eax]
mov al, byte [esi + ecx + 0x50]
xor al, 0x5c
mov byte [esp + ecx + 0x18], al
inc ecx
cmp ecx, 0x80
jl 0x50a700
push dword [esp + 0x10]
lea ebx, [esi + 0x34]
push edi
push ebx
call fcn.004bf260
add esp, 0xc
test eax, eax
je 0x50a650
push edi
call fcn.004c89f0
push eax
lea eax, [esp + 0x20]
push eax
push ebx
call fcn.004bf410
add esp, 0x10
test eax, eax
je 0x50a650
lea eax, [esi + 0x1c]
push eax
lea eax, [esi + 4]
push eax
call fcn.004bf4e0
add esp, 8
test eax, eax
je 0x50a650
mov eax, 1
jmp 0x50a652
test eax, eax
je 0x50a749
jmp 0x50a6ae
Function at 0x50b110
Capabilities:
Resolve dns

Disassembly:
push ebx
mov ebx, dword [esp + 0xc]
push ebp
push esi
mov esi, dword [esp + 0x10]
mov ebp, 1
push edi
push ebx
push esi
call fcn.0050b5d0
mov edi, eax
add esp, 8
test edi, edi
jns 0x50b14b
push 0x7b
push str..crypto_bio_b_sock.c
push 0x6c
push 0x6a
push 0x20
call fcn.004b5e40
add esp, 0x14
jmp 0x50b20c
call fcn.0050b500
cmp eax, 1
jne 0x50b21c
test edi, edi
jle 0x50b164
pop edi
pop esi
mov eax, ebp
pop ebp
pop ebx
ret
push 0x8e
push str..crypto_bio_b_sock.c
push 0x16
push 9
call fcn.004bbed0
add esp, 0x10
push esi
call dword [sym.imp.WS2_32.dll_gethostbyname]
mov ecx, eax
test ecx, ecx
jne 0x50b1a1
push 0x92
push str..crypto_bio_b_sock.c
push 0x66
push 0x6a
push 0x20
call fcn.004b5e40
add esp, 0x14
jmp 0x50b1f2
cmp word [ecx + 8], 2
je 0x50b1c2
push 0x99
push str..crypto_bio_b_sock.c
push 0x6b
push 0x6a
push 0x20
call fcn.004b5e40
add esp, 0x14
jmp 0x50b1f2
mov eax, dword [ecx + 0xc]
xor ebp, ebp
mov eax, dword [eax]
movzx eax, byte [eax]
mov byte [ebx], al
mov eax, dword [ecx + 0xc]
mov eax, dword [eax]
movzx eax, byte [eax + 1]
mov byte [ebx + 1], al
mov eax, dword [ecx + 0xc]
mov eax, dword [eax]
movzx eax, byte [eax + 2]
mov byte [ebx + 2], al
mov eax, dword [ecx + 0xc]
mov eax, dword [eax]
movzx eax, byte [eax + 3]
mov byte [ebx + 3], al
push 0xa2
push str..crypto_bio_b_sock.c
push 0x16
push 0xa
call fcn.004bbed0
add esp, 0x10
test ebp, ebp
je 0x50b223
push esi
push 0x5a6acc
push 2
call fcn.004b5480
add esp, 0xc
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
ret
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
ret

Function at 0x50b580
Capabilities:
Set socket configuration

Disassembly:
mov eax, dword [esp + 8]
push esi
mov dword [esp + 0xc], eax
lea eax, [esp + 0xc]
push eax
push 0x8004667e
push dword [esp + 0x10]
call dword [sym.imp.WS2_32.dll_ioctlsocket]
mov esi, eax
test esi, esi
jns 0x50b5c0
push 0x233
push str..crypto_bio_b_sock.c
call dword [sym.imp.WS2_32.dll_WSAGetLastError]
push eax
push 5
push 2
call fcn.004b5e40
add esp, 0x14
xor eax, eax
test esi, esi
pop esi
sete al
ret
Function at 0x51aff0
Capabilities:
Encode data using xor
Encrypt data using rc4 prga

Disassembly:
mov ecx, dword [esp + 8]
push ebx
mov ebx, dword [esp + 8]
push ebp
mov ebp, dword [esp + 0x18]
push esi
push edi
mov edi, 0x80
mov byte [ebx], 0
cmp ecx, edi
cmovg ecx, edi
test ebp, ebp
jg 0x51b018
mov ebp, 0x400
jmp 0x51b022
mov eax, 0x400
cmp ebp, eax
cmovg ebp, eax
test ecx, ecx
jle 0x51b044
sub dword [esp + 0x1c], ebx
mov edx, ebx
mov ebx, dword [esp + 0x1c]
mov esi, ecx
mov al, byte [ebx + edx]
lea edx, [edx + 1]
mov byte [edx - 1], al
sub esi, 1
jne 0x51b032
mov ebx, dword [esp + 0x14]
movzx edx, byte [ebx + ecx - 1]
cmp ecx, edi
jge 0x51b069
mov esi, ebx
sub esi, ecx
movzx eax, byte [esi + ecx]
add eax, edx
movzx eax, al
movzx edx, byte [eax + 0x5c0850]
mov byte [ecx + ebx], dl
inc ecx
cmp ecx, edi
jl 0x51b051
lea eax, [ebp + 7]
mov edx, 0xff
sar eax, 3
neg ebp
sub edi, eax
mov dword [esp + 0x14], eax
movzx eax, byte [edi + ebx]
lea esi, [edi + ebx]
and ebp, 7
mov ecx, ebp
sar edx, cl
and edx, eax
movzx ecx, byte [edx + 0x5c0850]
mov byte [esi], cl
test edi, edi
je 0x51b0b8
mov edx, dword [esp + 0x14]
nop dword [eax]
movzx eax, byte [esi + edx - 1]
lea esi, [esi - 1]
xor eax, ecx
movzx ecx, byte [eax + 0x5c0850]
mov byte [esi], cl
sub edi, 1
jne 0x51b0a0
lea esi, [ebx + 0xfc]
mov edi, 0x40
lea edx, [ebx + 0x7e]
movzx ecx, byte [edx + 1]
lea esi, [esi - 4]
movzx eax, byte [edx]
lea edx, [edx - 2]
shl ecx, 8
or ecx, eax
movzx eax, cx
mov dword [esi + 4], eax
sub edi, 1
jne 0x51b0c6
pop edi
pop esi
pop ebp
pop ebx
ret
Function at 0x51bd10
Capabilities:
Encode data using xor
Encrypt data using aes
Reference aes constants

Disassembly:
jmp 0x51c800
push ebp
mov ebp, dword [esp + 0x10]
push ebp
push dword [esp + 0x10]
push dword [esp + 0x10]
call fcn.0051ca00
add esp, 0xc
test eax, eax
js 0x51c9f0
push ebx
push esi
push edi
mov edi, dword [ebp + 0xf0]
xor ebx, ebx
shl edi, 2
test edi, edi
jle 0x51c880
lea esi, [ebp + 8]
lea esi, [esi + edi*4]
lea eax, [ebp + 8]
nop dword [eax]
mov edx, dword [eax - 8]
lea eax, [eax + 0x10]
mov ecx, dword [esi - 8]
lea esi, [esi - 0x10]
mov dword [eax - 0x18], ecx
add ebx, 4
mov ecx, dword [esi + 0xc]
sub edi, 4
mov dword [esi + 8], edx
mov edx, dword [eax - 0x14]
mov dword [eax - 0x14], ecx
mov ecx, dword [esi + 0x10]
mov dword [esi + 0xc], edx
mov edx, dword [eax - 0x10]
mov dword [eax - 0x10], ecx
mov ecx, dword [esi + 0x14]
mov dword [esi + 0x10], edx
mov edx, dword [eax - 0xc]
mov dword [eax - 0xc], ecx
mov dword [esi + 0x14], edx
cmp ebx, edi
jl 0x51c840
mov edi, 1
cmp dword [ebp + 0xf0], edi
jle 0x51c9eb
lea esi, [ebp + 2]
mov edx, dword [esi + 0xe]
lea esi, [esi + 0x10]
mov eax, edx
inc edi
shr eax, 0x18
movzx ecx, byte [eax*4 + 0x5c0da0]
movzx eax, byte [esi - 1]
mov ecx, dword [ecx*4 + 0x5c19a0]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c21a0]
movzx eax, byte [esi]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c1da0]
movzx eax, dl
mov edx, dword [esi + 2]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c25a0]
mov eax, edx
shr eax, 0x18
mov dword [esi - 2], ecx
movzx ecx, byte [eax*4 + 0x5c0da0]
movzx eax, byte [esi + 3]
mov ecx, dword [ecx*4 + 0x5c19a0]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c21a0]
movzx eax, byte [esi + 4]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c1da0]
movzx eax, dl
mov edx, dword [esi + 6]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c25a0]
mov eax, edx
shr eax, 0x18
mov dword [esi + 2], ecx
movzx ecx, byte [eax*4 + 0x5c0da0]
movzx eax, byte [esi + 7]
mov ecx, dword [ecx*4 + 0x5c19a0]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c21a0]
movzx eax, byte [esi + 8]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c1da0]
movzx eax, dl
mov edx, dword [esi + 0xa]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c25a0]
mov eax, edx
shr eax, 0x18
mov dword [esi + 6], ecx
movzx ecx, byte [eax*4 + 0x5c0da0]
movzx eax, byte [esi + 0xb]
mov ecx, dword [ecx*4 + 0x5c19a0]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c21a0]
movzx eax, byte [esi + 0xc]
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c1da0]
movzx eax, dl
movzx eax, byte [eax*4 + 0x5c0da0]
xor ecx, dword [eax*4 + 0x5c25a0]
mov dword [esi + 0xa], ecx
cmp edi, dword [ebp + 0xf0]
jl 0x51c894
pop edi
pop esi
xor eax, eax
pop ebx
pop ebp
ret
Function at 0x51d490
Capabilities:
Encode data using xor

Disassembly:
mov eax, 8
call fcn.00551530
mov ecx, dword [esp + 0xc]
push ebx
push ebp
mov ebp, dword [esp + 0x18]
push esi
mov esi, dword [esp + 0x20]
push edi
mov edi, dword [esp + 0x34]
mov dword [esp + 0x10], ecx
mov edi, dword [edi]
mov dword [esp + 0x14], edi
test edi, edi
je 0x51d4dd
mov edx, dword [esp + 0x30]
test esi, esi
je 0x51d4dd
mov al, byte [edi + edx]
dec esi
xor al, byte [ecx]
inc edi
mov byte [ebp], al
inc ecx
inc ebp
mov dword [esp + 0x10], ecx
and edi, 0xf
mov dword [esp + 0x14], edi
jne 0x51d4c0
mov ebx, dword [esp + 0x2c]
movzx edx, byte [ebx + 0xc]
movzx eax, byte [ebx + 0xd]
shl edx, 8
or edx, eax
movzx eax, byte [ebx + 0xe]
shl edx, 8
or edx, eax
movzx eax, byte [ebx + 0xf]
shl edx, 8
or edx, eax
mov dword [esp + 0x24], edx
cmp esi, 0x10
jb 0x51d597
mov edi, ebx
nop
mov ebx, esi
shr ebx, 4
add edx, ebx
mov dword [esp + 0x24], edx
cmp edx, ebx
jae 0x51d527
sub ebx, edx
xor edx, edx
mov dword [esp + 0x24], edx
push edi
push dword [esp + 0x2c]
push ebx
push ebp
push ecx
call dword [esp + 0x4c]
mov edx, dword [esp + 0x38]
add esp, 0x14
mov eax, edx
mov byte [edi + 0xf], dl
shr eax, 0x18
mov byte [edi + 0xc], al
mov eax, edx
shr eax, 0x10
mov byte [edi + 0xd], al
mov eax, edx
shr eax, 8
mov byte [edi + 0xe], al
test edx, edx
jne 0x51d579
mov edx, 0xc
mov ecx, 1
movzx eax, byte [edx + edi - 1]
dec edx
add ecx, eax
mov byte [edx + edi], cl
shr ecx, 8
test edx, edx
jne 0x51d563
mov edx, dword [esp + 0x24]
mov ecx, dword [esp + 0x10]
shl ebx, 4
sub esi, ebx
add ecx, ebx
add ebp, ebx
mov dword [esp + 0x10], ecx
cmp esi, 0x10
jae 0x51d510
mov edi, dword [esp + 0x14]
mov ebx, dword [esp + 0x2c]
test esi, esi
je 0x51d605
mov eax, dword [esp + 0x30]
xorps xmm0, xmm0
push ebx
push dword [esp + 0x2c]
push 1
push eax
push eax
movups xmmword [eax], xmm0
call dword [esp + 0x4c]
mov ecx, dword [esp + 0x38]
add esp, 0x14
inc ecx
mov eax, ecx
mov byte [ebx + 0xf], cl
shr eax, 0x18
mov byte [ebx + 0xc], al
mov eax, ecx
shr eax, 0x10
mov byte [ebx + 0xd], al
mov eax, ecx
shr eax, 8
mov byte [ebx + 0xe], al
test ecx, ecx
jne 0x51d5e2
push ebx
call fcn.0051d650
add esp, 4
mov eax, dword [esp + 0x30]
sub ebp, eax
mov edx, dword [esp + 0x10]
sub edx, eax
lea ecx, [edi + eax]
add edi, esi
mov al, byte [edx + ecx]
lea ecx, [ecx + 1]
xor al, byte [ecx - 1]
mov byte [ecx + ebp - 1], al
sub esi, 1
jne 0x51d5f3
mov eax, dword [esp + 0x34]
mov dword [eax], edi
pop edi
pop esi
pop ebp
pop ebx
add esp, 8
ret