Forensics

To check if a file is generated from a particular system or not, you can try the following steps:

Check the file metadata: The metadata of the file can contain information about the system it was generated from. You can check the file properties or attributes, such as the creation date, the author, or the file path. This information may provide clues about the system that created the file.
Check the file format: Different systems may use different file formats or extensions to save files. For example, Microsoft Word documents have a .docx extension, while Adobe Photoshop files have a .psd extension. If you know which system generated the file, you can check if the file format is consistent with that system.
Check the file contents: The contents of the file may also provide clues about the system it was generated from. For example, if the file contains references to system-specific software or hardware, it may indicate that it was created on that system. Additionally, the language used in the file or any metadata in the file may also provide hints.
Use forensics tools: If you need more in-depth analysis, you can use forensics tools to examine the file and determine its origin. Forensics tools can analyze file headers, metadata, and other information to determine the system that created the file.

Overall, determining the system that generated a file can be a complex process that requires a combination of technical expertise and investigative techniques. It's important to be aware that this kind of analysis can be limited by the quality and quantity of the available information, and may not always provide definitive answers.

There are several forensic tools available for analyzing file headers and metadata. Here are a few examples:

Sleuth Kit: This is an open-source forensic toolkit that includes several command-line tools for analyzing file systems and file metadata. The "fsstat" tool can be used to display information about file system metadata, while the "icat" tool can be used to extract file contents from unallocated space.
EnCase: This is a commercial forensic software suite that includes tools for analyzing file headers and metadata. The "File Header Analysis" feature can be used to identify file types and examine file headers, while the "Metadata Analysis" feature can be used to analyze file metadata such as timestamps, ownership, and permissions.
FTK Imager: This is a free forensic imaging tool that can be used to acquire and analyze digital evidence. The tool includes features for analyzing file headers and metadata, including the ability to display file timestamps and other metadata.
Autopsy: This is an open-source digital forensic platform that includes several built-in tools for analyzing file headers and metadata. The "Metadata Extractor" feature can be used to extract metadata from various file types, while the "File Type Identification" feature can be used to identify the type of a file based on its header.
ExifTool: This is a free and open-source command-line tool for reading and writing metadata in image, audio, and video files. It can extract metadata from a wide range of file formats, including EXIF, IPTC, XMP, and many others.
Scalpel: A file carving tool that can be used to extract file headers and metadata from fragmented or corrupted files.
Bulk Extractor: A tool for analyzing large volumes of data and extracting file headers and metadata from a wide range of file formats.
PhotoRec: A file recovery tool that can be used to recover file headers and metadata from damaged or deleted files, particularly image and video files.
TSK: A file system analysis tool that can be used to extract file headers and metadata from a wide range of file formats.

These are just a few examples of the many forensic tools available for analyzing file headers and metadata. The choice of tool will depend on the specific requirements of the investigation, as well as the type of evidence being analyzed.