Function at 0x4d5160
Capabilities:
Get file size
Read file on windows

Disassembly:
sub esp, 0xa8
mov eax, dword [esp + 0xb4]
push ebx
mov ebx, dword [esp + 0xb4]
push ebp
mov ebp, dword [eax]
xor eax, eax
push esi
push edi
xor edi, edi
mov dword [esp + 0x14], ebp
xor esi, esi
mov dword [esp + 0x1c], eax
test ebx, ebx
jne 0x4d51ba
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_invalid_path_name_for_CA_file__s:__s
push ebp
call fcn.004a43c0
add esp, 0x1c
lea ebp, [edi + 0x4d]
jmp 0x4d549b
push 0
push pe_nt_image_headers32
push 3
push 0
push 1
push closesocket
push ebx
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov dword [esp + 0x24], eax
cmp eax, 0xffffffff
jne 0x4d520c
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_failed_to_open_CA_file__s:__s
push ebp
call fcn.004a43c0
add esp, 0x1c
mov ebp, 0x4d
jmp 0x4d549b
lea ecx, [esp + 0x28]
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
test eax, eax
jne 0x4d524c
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_failed_to_determine_size_of_CA_file__s:__s
push ebp
call fcn.004a43c0
add esp, 0x1c
mov ebp, 0x4d
jmp 0x4d5491
mov edi, dword [esp + 0x28]
cmp dword [esp + 0x2c], esi
jl 0x4d527f
jg 0x4d5260
cmp edi, 0x100000
jbe 0x4d527f
push 0x100000
push str.schannel:_CA_file_exceeds_max_size_of__u_bytes
push ebp
call fcn.004a43c0
add esp, 0xc
mov ebp, 0x4d
xor edi, edi
jmp 0x4d5491
lea eax, [edi + 1]
push eax
call dword [0x53c698]
mov ecx, eax
add esp, 4
mov dword [esp + 0x10], ecx
test ecx, ecx
jne 0x4d52a0
lea ebp, [eax + 0x1b]
mov edi, eax
jmp 0x4d5491
xor ebp, ebp
test edi, edi
je 0x4d52e2
push 0
lea eax, [esp + 0x1c]
mov dword [esp + 0x1c], ebp
push eax
mov eax, edi
sub eax, esi
push eax
lea eax, [esi + ecx]
push eax
push dword [esp + 0x34]
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x4d53be
mov eax, dword [esp + 0x18]
mov ecx, dword [esp + 0x10]
test eax, eax
je 0x4d53b7
add esi, eax
cmp esi, edi
jb 0x4d52a6
mov byte [edi + ecx], 0
mov edi, ecx
nop dword [eax + eax]
cmp byte [edi], 0
je 0x4d545f
push str._____BEGIN_CERTIFICATE_____
push edi
call fcn.0050e4b0
mov esi, eax
add esp, 8
test esi, esi
je 0x4d545f
mov al, byte [esi + 0x1b]
cmp al, 0xd
je 0x4d5320
cmp al, 0xa
jne 0x4d545f
push str._n_____END_CERTIFICATE_____
push esi
call fcn.0050e4b0
mov edi, eax
add esp, 8
test edi, edi
je 0x4d5446
lea eax, [esp + 0x18]
mov dword [esp + 0x18], ebp
push eax
push 0
push 0
push 0
lea eax, [esp + 0x30]
mov dword [esp + 0x30], ebp
push eax
push 0
push 0
push 0xe
push 2
lea eax, [esp + 0x54]
mov dword [esp + 0x58], esi
sub edi, esi
push eax
add edi, 0x1a
push 2
mov dword [esp + 0x5c], edi
call dword [sym.imp.CRYPT32.dll_CryptQueryObject]
test eax, eax
je 0x4d5427
mov eax, dword [esp + 0x20]
add edi, esi
cmp eax, 1
jne 0x4d5410
push 0
push 4
push dword [esp + 0x20]
push dword [esp + 0xc8]
call dword [sym.imp.CRYPT32.dll_CertAddCertificateContextToStore]
push dword [esp + 0x18]
mov esi, eax
call dword [sym.imp.CRYPT32.dll_CertFreeCertificateContext]
test esi, esi
je 0x4d53f1
inc dword [esp + 0x1c]
jmp 0x4d52f0
mov edi, esi
jmp 0x4d52e2
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_failed_to_read_from_CA_file__s:__s
push dword [esp + 0x2c]
call fcn.004a43c0
add esp, 0x1c
mov ebp, 0x4d
jmp 0x4d548d
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_failed_to_add_certificate_from_CA_file__s_to_certificate_store:__s
jmp 0x4d53db
push ebx
push eax
push str.schannel:_unexpected_content_type__d_when_extracting_certificate_from_CA_file__s
push dword [esp + 0x20]
call fcn.004a43c0
mov ebp, 0x4d
jmp 0x4d548a
push pe_nt_image_headers32
lea eax, [esp + 0x3c]
push eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
call fcn.004c55b0
push eax
push ebx
push str.schannel:_failed_to_extract_certificate_from_CA_file__s:__s
jmp 0x4d53db
push ebx
push str.schannel:_CA_file__s_is_not_correctly_formatted
push dword [esp + 0x1c]
call fcn.004a43c0
add esp, 0xc
mov ebp, 0x4d
jmp 0x4d548d
mov eax, dword [esp + 0x1c]
push ebx
test eax, eax
jne 0x4d547b
push str.schannel:_did_not_add_any_certificates_from_CA_file__s_n
push dword [esp + 0x1c]
call fcn.004a4480
add esp, 0xc
jmp 0x4d548d
push eax
push str.schannel:_added__d_certificate_s__from_CA_file__s_n
push dword [esp + 0x20]
call fcn.004a4480
add esp, 0x10
mov edi, dword [esp + 0x10]
push dword [esp + 0x24]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push edi
call dword [0x53c69c]
add esp, 4
mov eax, ebp
pop edi
pop esi
pop ebp
pop ebx
add esp, 0xa8
ret