Function at 0x402bb9
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x2c
push ebx
push esi
xor ebx, ebx
push edi
mov dword [ebp - 4], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov esi, 0x42bc00
push 0x400
mov edi, eax
push esi
push ebx
add edi, 0x3e8
mov dword [ebp - 0xc], ebx
mov dword [ebp - 8], ebx
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405594
mov ebx, eax
cmp ebx, 0xffffffff
mov dword [ebp - 0x10], ebx
mov dword [0x409010], ebx
jne 0x402c14
mov eax, str.Error_launching_installer
jmp 0x402e43
push esi
mov esi, 0x42ac00
push esi
call fcn.004058bd
push esi
call fcn.004053f7
push eax
push 0x42c000
call fcn.004058bd
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x41f0d0], eax
mov esi, eax
jle 0x402d85
mov eax, dword [0x423f30]
mov ebx, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x402c64
mov ebx, eax
push ebx
push 0x4170d0
call fcn.00403047
test eax, eax
je 0x402de9
xor eax, eax
cmp dword [0x423f30], eax
jne 0x402d13
push 0x1c
lea eax, [ebp - 0x2c]
push 0x4170d0
push eax
call fcn.00405555
mov eax, dword [ebp - 0x2c]
test eax, 0xfffffff0
jne 0x402d4d
cmp dword [ebp - 0x28], 0xdeadbeef
jne 0x402d4d
cmp dword [ebp - 0x1c], 0x74736e49
jne 0x402d4d
cmp dword [ebp - 0x20], 0x74666f73
jne 0x402d4d
cmp dword [ebp - 0x24], 0x6c6c754e
jne 0x402d4d
or dword [ebp + 8], eax
mov eax, dword [ebp + 8]
mov ecx, dword [0x40b0c8]
and eax, 2
or dword [0x423fc0], eax
mov eax, dword [ebp - 0x14]
cmp eax, esi
mov dword [0x423f30], ecx
jg 0x402de2
test byte [ebp + 8], 8
jne 0x402d05
test byte [ebp + 8], 4
jne 0x402d76
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp ebx, esi
jbe 0x402d4d
mov ebx, esi
jmp 0x402d4d
test byte [ebp + 8], 2
jne 0x402d4d
cmp dword [ebp - 4], eax
je 0x402d26
push eax
call fcn.00405c14
jmp 0x402d4d
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, edi
jbe 0x402d4d
push str.verifying_installer:__d__
push 0x402b2d
push 0
push 0x6f
push dword [0x423f20]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x41f0d0]
jge 0x402d66
push ebx
push 0x4170d0
push dword [ebp - 0xc]
call fcn.00405c47
mov dword [ebp - 0xc], eax
add dword [0x40b0c8], ebx
sub esi, ebx
test esi, esi
jg 0x402c49
cmp dword [ebp - 4], 0
je 0x402d85
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
xor edi, edi
cmp dword [0x423f30], edi
je 0x402de2
cmp dword [ebp - 8], edi
je 0x402db6
push dword [0x40b0c8]
call fcn.00403079
lea eax, [ebp + 8]
push 4
push eax
call fcn.00403047
test eax, eax
je 0x402de2
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp + 8]
jne 0x402de2
push dword [ebp - 0x18]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov esi, eax
mov eax, dword [0x423f30]
add eax, 0x1c
push eax
call fcn.00403079
push dword [ebp - 0x18]
push esi
push edi
push 0xffffffffffffffff
call fcn.00402e4a
cmp eax, dword [ebp - 0x18]
je 0x402dfa
mov eax, str.The_installer_you_are_trying_to_use_is_corrupted_or_incomplete._nThis_could_be_the_result_of_a_damaged_disk__a_failed_download_or_a_virus._n_nYou_may_want_to_contact_the_author_of_this_installer_to_obtain_a_new_copy._n_nIt_may_be_possible_to_skip_this_check_using_the__NCRC_command_line_switch_n_NOT_RECOMMENDED_.
jmp 0x402e43
cmp dword [ebp - 4], 0
je 0x402de2
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x402de2
test byte [ebp - 0x2c], 1
mov dword [0x423f2c], esi
mov eax, dword [esi]
mov dword [0x423f34], eax
je 0x402e13
inc dword [0x423f38]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x402e19
push 1
push edi
push edi
push dword [ebp - 0x10]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
mov dword [esi + 0x3c], eax
add esi, 4
push 0x40
push esi
push 0x423f40
call fcn.00405555
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4