Tag Archives: Windows 8

Windows 8 OS

Programming with FASM – writing to file.

In this simple example, I will show how to write a file using the assembly programming language with FASM, known as flat assembler. You can use the FASM editor with the FASMW.EXE executable. Open this editor and use this commented source code:

;define format of exe file
format pe console 4.0
;include file WIN32AX
;http://flatassembler.net/docs.php?article=win32
include 'INCLUDE/WIN32AX.INC'
; define data for code
.data
 ;this will be the filename of file
 filename db 'file.txt',0
 ; this string will be write on the file
 buffer_text db 'This is a test by Catalin!'
 ; this is the size for WriteFile based on buffer_text
 buffer_size = $ - buffer_text
 ; define a space
 bytes_to_write dd ?
; the code for running
.code
 main:
 invoke  CreateFile,filename, GENERIC_WRITE, 0, 0, 4, FILE_ATTRIBUTE_NORMAL, 0
 ;https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-writefile
 invoke  WriteFile, eax, buffer_text, buffer_size, bytes_to_write, 0
 ;https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-exitprocess
 invoke  ExitProcess, 0
.end main

;define format of exe file

format pe console 4.0

;include file WIN32AX

;http://flatassembler.net/docs.php?article=win32

include 'INCLUDE/WIN32AX.INC'

; define data for code

.data

;this will be the filename of file

filename db 'file.txt',0

; this string will be write on the file

buffer_text db 'This is a test by Catalin!'

; this is the size for WriteFile based on buffer_text

buffer_size = $ - buffer_text

; define a space

bytes_to_write dd ?

; the code for running

.code

main:

invoke CreateFile,filename, GENERIC_WRITE, 0, 0, 4, FILE_ATTRIBUTE_NORMAL, 0

;https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-writefile

invoke WriteFile, eax, buffer_text, buffer_size, bytes_to_write, 0

;https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-exitprocess

invoke ExitProcess, 0

.end main

Each step is describe in the source code. Run and test with… Read More »

Programming with FASM – OpenAI and FASM programming.

The entire world map praises OpenAI for its ability to analyze, sort, and give correct feedback on a defined issue. I do not completely agree, there are still reminders related to the way of solving complex tasks. An example is creating source code in an assembler for FASM. Although FASM is very strict in terms… Read More »

Windows – GodMode shortcut.

Windows let you create a shortcut with most windows maintenance features. Just create a new folder on your desktop and rename it with this:

GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

1	GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}

This can be scary!

Windows – Qemu emulate Raspberry Pi ARM in Windows 10.

If you want to try the Raspberry Pi ARM operating system in Windows 10 then you need to install the Qemu free and open-source emulator. I used this version qemu-w32-setup-20220419 from the official webpage. After installation, you need to download in the same folder with the qemu installation this software kernel-qemu-4.4.34-jessie and the Rasberry Pi… Read More »

Windows – full screenshot with browser developer tool.

Every modern web browser includes a powerful suite of developer tools. Sometimes you want to take a screenshot of the entire document, the web page that can only be accessed in the Chrome browser or another browser that uses the web tool and you cannot use an online website or a chrome extension. You can… Read More »

PowerShell tips – part 024.

You can access the certificate store using MMC or using CertMgr.msc command. This will show you all certificates in the Local Machines Personal Store:

PS C:\Users\catafest> Get-ChildItem -path cert:\LocalMachine\My

1	PS C:\Users\catafest> Get-ChildItem -path cert:\LocalMachine\My

This will show info about one certificate result on the first PowerShell command:

PS C:\Users\catafest> Get-ChildItem Cert:\LocalMachine\My\XXX | Select @{N='StartDate';E={$_.NotBefore}},
>>    @{N='EndDate';E={$_.NotAfter}},
>>    @{N='DaysRemaining';E={($_.NotAfter - (Get-Date)).Days}}
>>

StartDate                  EndDate                                DaysRemaining
---------                  -------                                -------------
6/2/2019 8:17:27 AM        6/2/2022 8:17:27 AM                              -24

PS C:\Users\catafest> Get-ChildItem Cert:\LocalMachine\My\XXX | Select @{N='StartDate';E={$_.NotBefore}},

>> @{N='EndDate';E={$_.NotAfter}},

>> @{N='DaysRemaining';E={($_.NotAfter - (Get-Date)).Days}}

StartDate EndDate DaysRemaining

--------- ------- -------------

6/2/2019 8:17:27 AM 6/2/2022 8:17:27 AM -24

Also, you can test many PowerShell commands about certificates, like:

PS C:\Users\catafest> Get-PSDrive cert | ft -AutoSize
PS C:\Users\catafest> Get-ChildItem Cert:\LocalMachine\Root\ | where{$_.Friendly
Name -eq 'DigiCert'}
...

PS C:\Users\catafest> Get-PSDrive cert | ft -AutoSize

PS C:\Users\catafest> Get-ChildItem Cert:\LocalMachine\Root\ | where{$_.Friendly

Name -eq 'DigiCert'}

...

For the remote servers, we… Read More »

Windows – Windows 8.1 activation settings commands.

Use these commands with administrator privileges. I’m using a licensed Windows 8.1 purchased with my old laptop, and I found these commands useful for information about activation settings:

C:\Windows\system32>slmgr.vbs /dli

C:\Windows\system32>slmgr.vbs /dlv

C:\Windows\system32>slmgr.vbs /rilc

C:\Windows\system32>slmgr.vbs /dli

C:\Windows\system32>slmgr.vbs /dlv

C:\Windows\system32>slmgr.vbs /rilc

The last command show all licenses for your Windows.

Windows – fix with SFC using the Windows recovery media.

Most users know how to use the SFC command and in this tutorial, I will show you how to fix it with Windows recovery media. The Windows recovery media can be downloaded from the Windows official website, see the Window 10 download. The System File Checker known as the SFC command can be used on… Read More »