Function at 0x5d31c0
Capabilities:
Get file size
Read file on windows
Set registry value

Disassembly:
push ebp
lea ebp, [esp - 0x3a8]
sub esp, 0x3a8
push 0xffffffffffffffff
push 0x667b10
mov eax, dword fs:[0]
push eax
sub esp, 0x2c
mov eax, dword [0x758898]
xor eax, ebp
mov dword [ebp + 0x3a4], eax
push ebx
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
mov dword [ebp - 0x10], esp
mov edi, ecx
mov dword [ebp - 0x18], edi
mov ebx, dword [ebp + 0x3b0]
mov dword [ebp - 0x2c], ebx
mov eax, dword [ebp + 0x3b4]
mov dword [ebp - 0x38], eax
mov dword [ebp - 4], 0
test ebx, ebx
je 0x5d37ba
call fcn.005cc030
mov byte [ebp - 0x11], 1
mov byte [ebp - 0x12], 0
cmp dword [0x75f81c], 0
jne 0x5d3245
cmp dword [0x75f810], 0
je 0x5d3776
push 0
push 0
push 3
push 0
push 3
push 0x80000000
push ebx
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov esi, eax
mov dword [ebp - 0x28], esi
cmp esi, 0xffffffff
je 0x5d3776
mov ebx, 0x100
mov dword [ebp - 0x24], ebx
push 0x101
push 0
lea ecx, [ebp + 0x2a0]
push ecx
call fcn.00621270
add esp, 0xc
mov dword [ebp - 0x1c], 0
push 0
lea edx, [ebp - 0x1c]
push edx
push ebx
lea eax, [ebp + 0x2a0]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x5d3760
cmp dword [ebp - 0x1c], 0
jbe 0x5d3760
cmp dword [0x75f81c], 0
je 0x5d342a
mov byte [ebp - 4], 1
mov dword [ebp - 0x20], 0
push 0
lea ecx, [ebp - 0x20]
push ecx
push 0
push 0
mov edx, dword [ebp - 0x1c]
push edx
lea eax, [ebp + 0x2a0]
push eax
push 0
push 0
call dword [0x75f81c]
test eax, eax
jne 0x5d3411
mov eax, dword [ebp - 0x20]
test eax, eax
je 0x5d3411
mov byte [ebp - 0x11], 0
push eax
lea ecx, [edi + 0xcc]
call fcn.0040e500
mov byte [ebp - 4], 2
mov ecx, dword [ebp - 0x20]
push ecx
call dword [sym.imp.ole32.dll_CoTaskMemFree]
mov dword [ebp - 4], 1
jmp 0x5d3336
mov esi, dword [ebp - 0x18]
add esi, 0xcc
mov eax, dword [esi]
push str.application_octet_stream
push eax
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d337b
mov eax, dword [esi]
push 0x67e82c
push eax
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d337b
mov eax, dword [esi]
push str.text_html
push eax
call fcn.006226ae
add esp, 8
test eax, eax
jne 0x5d3388
cmp dword [0x75f810], 0
je 0x5d3388
mov byte [ebp - 0x11], 1
mov eax, dword [esi]
push str.application_octet_stream
push eax
call fcn.006226ae
add esp, 8
test eax, eax
jne 0x5d3411
cmp dword [ebp - 0x1c], 7
jb 0x5d3411
cmp byte [ebp + 0x2a0], 0x46
jne 0x5d3411
cmp byte [ebp + 0x2a1], 0x4c
jne 0x5d3411
cmp byte [ebp + 0x2a2], 0x56
jne 0x5d3411
mov al, 1
mov cl, byte [ebp + 0x2a4]
test cl, cl
jns 0x5d33cb
xor al, al
test cl, 0x40
je 0x5d33d2
xor al, al
test cl, 0x20
je 0x5d33d9
xor al, al
test cl, 0x10
je 0x5d33e0
xor al, al
test cl, 2
je 0x5d33e7
xor al, al
mov cl, byte [ebp + 0x2a3]
test cl, cl
je 0x5d3411
cmp cl, 2
ja 0x5d3411
test al, al
je 0x5d3411
push str.video_x_flv
push 0x678ea8
push esi
call fcn.00402f60
add esp, 0xc
mov byte [ebp - 0x11], 0
mov dword [ebp - 4], 0
jmp 0x5d342a
cmp dword [0x75f810], 0
je 0x5d3760
cmp byte [ebp - 0x11], 0
je 0x5d3760
push 0x2a0
push 0
lea edx, [ebp]
push edx
call fcn.00621270
add esp, 0xc
mov byte [ebp], 1
xor edi, edi
lea eax, [ebp - 0x24]
push eax
mov ecx, dword [ebp - 0x28]
push ecx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
mov esi, eax
cmp esi, 0xffffffff
jne 0x5d347d
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x5d3513
push 1
push 0
push 0
mov edx, dword [ebp - 0x24]
push edx
call fcn.006254d0
xor ecx, ecx
add eax, esi
adc edx, ecx
js 0x5d3513
jg 0x5d349d
cmp eax, 0x100
jbe 0x5d3513
test edx, edx
jg 0x5d34af
jl 0x5d34aa
cmp eax, 0x1388
jae 0x5d34af
mov dword [ebp - 0x30], edx
jmp 0x5d34b7
mov eax, 0x1388
mov dword [ebp - 0x30], ecx
mov ebx, eax
push ebx
call fcn.005f4e47
add esp, 4
mov esi, eax
test esi, esi
je 0x5d3513
mov dword [ebp - 0x1c], edi
push 0
push 0
push 0
mov edx, dword [ebp - 0x28]
push edx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
lea eax, [ebp - 0x1c]
push eax
push ebx
push esi
mov ecx, dword [ebp - 0x28]
push ecx
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x5d3508
mov eax, dword [ebp - 0x1c]
test eax, eax
jbe 0x5d3508
lea edx, [ebp]
push edx
push 0
push eax
push esi
call dword [0x75f810]
mov edi, eax
push esi
call fcn.005f4e52
add esp, 4
jmp 0x5d352c
lea eax, [ebp]
push eax
push 0
mov ecx, dword [ebp - 0x1c]
push ecx
lea edx, [ebp + 0x2a0]
push edx
call dword [0x75f810]
mov edi, eax
test edi, edi
je 0x5d3539
cmp edi, 0xffffffff
je 0x5d3539
mov byte [ebp - 0x11], 0
cmp edi, 3
jne 0x5d35b1
mov edi, dword [ebp - 0x18]
mov eax, dword [edi + 0x138]
mov edx, dword [edi + 0x13c]
mov ecx, dword [ebp - 0x1c]
xor esi, esi
cmp eax, ecx
jne 0x5d3564
cmp edx, esi
jne 0x5d3564
test edx, edx
jg 0x5d356c
jl 0x5d3564
test eax, eax
ja 0x5d356c
cmp ebx, 0x1388
jb 0x5d35c0
mov edi, 1
lea eax, [ebp + 0x12d]
lea edx, [eax + 1]
lea ebx, [ebx]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x5d3580
sub eax, edx
je 0x5d36e4
push 0x6b6ca0
lea eax, [ebp + 0x12d]
push eax
call fcn.006226ae
add esp, 8
test eax, eax
jne 0x5d35d9
push 0x67e82c
jmp 0x5d3687
cmp edi, 1
je 0x5d3571
cmp edi, 2
je 0x5d3571
jmp 0x5d3760
mov byte [ebp - 0x12], 1
push 0x67997c
lea ecx, [edi + 0xcc]
call fcn.0054f750
jmp 0x5d3760
push 0x67f8d8
lea edx, [ebp + 0x12d]
push edx
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3682
push str.html
lea eax, [ebp + 0x12d]
push eax
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3682
mov ebx, dword [ebp - 0x18]
mov esi, dword [ebx + 0xa4]
cmp byte [esi], 0x2e
jne 0x5d361c
inc esi
cmp dword [0x75f814], 0
je 0x5d3665
lea ecx, [ebp + 0x12d]
push ecx
push esi
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3665
push 0
push esi
lea edx, [ebp + 0xc9]
push edx
call dword [0x75f814]
cmp eax, 1
jne 0x5d3665
push esi
push str.idmcheckedtype__s
add ebx, 0xcc
push ebx
call fcn.00402f60
add esp, 0xc
jmp 0x5d3699
lea eax, [ebp + 0x12d]
push eax
push str.idmcheckedtype__s
add ebx, 0xcc
push ebx
call fcn.00402f60
add esp, 0xc
jmp 0x5d3699
push str.text_html
mov ecx, dword [ebp - 0x18]
add ecx, 0xcc
push ecx
call fcn.00402f60
add esp, 8
cmp edi, 2
jne 0x5d3760
mov edx, dword [ebp - 0x18]
test dword [edx + 0x15c], 0x100
je 0x5d3760
mov eax, dword [ebp + 0x160]
mov ecx, edx
mov dword [ecx + 0x374], eax
mov dword [ebp - 0x30], eax
push 4
lea eax, [ebp - 0x30]
push eax
push 4
push 0
push str.exLenToSkip
mov ecx, dword [ecx + 0x48c]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
jmp 0x5d3760
lea eax, [ebp + 0xc9]
lea edx, [eax + 1]
lea ecx, [ecx]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x5d36f0
sub eax, edx
je 0x5d3760
push str.application_octet_stream
lea edx, [ebp + 0xc9]
push edx
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3760
push 0x67e82c
lea eax, [ebp + 0xc9]
push eax
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3760
push str.text_html
lea ecx, [ebp + 0xc9]
push ecx
call fcn.006226ae
add esp, 8
test eax, eax
je 0x5d3760
lea edx, [ebp + 0xc9]
push edx
push 0x678ea8
mov eax, dword [ebp - 0x18]
add eax, 0xcc
push eax
call fcn.00402f60
add esp, 0xc
mov ecx, dword [ebp - 0x28]
push ecx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
cmp byte [ebp - 0x11], 0
je 0x5d37e1
mov edi, dword [ebp - 0x18]
mov ebx, dword [ebp - 0x2c]
lea ecx, [ebp - 0x24]
call fcn.005d6ae0
mov byte [ebp - 4], 5
push ebx
lea ecx, [ebp - 0x24]
call fcn.005d6b00
mov edx, dword [ebp - 0x38]
mov dword [edx], eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x24]
call fcn.005d6af0
cmp byte [ebp - 0x12], 0
jne 0x5d37b3
mov byte [edi + 0x33e], 1
mov dword [edi + 0xb0], 3
mov dword [ebp - 4], 0xffffffff
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
pop ebx
mov ecx, dword [ebp + 0x3a4]
xor ecx, ebp
call fcn.00620b8d
add ebp, 0x3a8
mov esp, ebp
pop ebp
ret 8
cmp byte [ebp - 0x12], 0
jne 0x5d37b3
mov edi, dword [ebp - 0x18]
mov edx, dword [edi + 0xcc]
mov eax, edx
lea esi, [eax + 1]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x5d37f5
sub eax, esi
je 0x5d37a2
push str.text_html
push edx
call fcn.006226ae
add esp, 8
neg eax
sbb eax, eax
add eax, 1
mov ebx, dword [ebp - 0x38]
mov dword [ebx], eax
jne 0x5d37a2
cmp dword [edi + 0x3c], 0
jne 0x5d382f
test byte [edi + 0x15c], 8
je 0x5d37a2
mov esi, dword [edi + 0xa4]
mov eax, esi
lea edx, [eax + 1]
lea ebx, [ebx]
mov cl, byte [eax]
inc eax
test cl, cl
jne 0x5d3840
sub eax, edx
je 0x5d37a2
cmp byte [esi], 0x2e
jne 0x5d3855
inc esi
push 0x100
push esi
lea eax, [ebp + 0x2a0]
push eax
call fcn.00405470
lea ecx, [ebp + 0x2a0]
push ecx
call fcn.00627941
add esp, 0x10
lea ecx, [ebp - 0x20]
call fcn.004024f0
mov byte [ebp - 4], 6
lea edx, [ebp + 0x2a0]
push edx
push 0x6b5bb8
lea eax, [ebp - 0x20]
push eax
call fcn.00402f60
push 0x6b6ca0
push esi
call fcn.006226ae
add esp, 0x14
test eax, eax
je 0x5d38d9
mov ecx, dword [ebp - 0x20]
push ecx
push str._3GP_7Z_AAC_ACE_AIF_APK_ARJ_ASF_AVI_BIN_BZ2_DOC_DOCX_EXE_FLV_GZ_GZIP_IMG_ISO_LZH_M4A_M4V_MKV_MOV_MP3_MP4_MPA_MPE_MPEG_MPG_MSI_MSU_OGG_OGV_PDF_PLJ_PPS_PPT_QT_R0_R1_RA_RAR_RM_RMVB_SEA_SIT_SITX_TAR_TIF_TIFF_WAV_WEBM_WMA_WMV_Z_ZIP
call fcn.00622230
add esp, 8
test eax, eax
je 0x5d38d9
mov eax, dword [edi + 0xcc]
push 0x67e82c
push eax
call fcn.006226ae
add esp, 8
neg eax
sbb eax, eax
inc eax
mov dword [ebx], eax
mov byte [ebp - 4], 0
lea ecx, [ebp - 0x20]
call fcn.00402560
jmp 0x5d37a2