# Xvirus CLI

Xvirus CLI 4.2.

## Table of Contents

- [Xvirus CLI](#xvirus-cli)
  - [Table of Contents](#table-of-contents)
  - [Minimum Requirements](#minimum-requirements)
  - [Changelog](#changelog)
  - [Known Issues](#known-issues)
  - [Get Started](#get-started)
  - [Avaiable Commands](#avaiable-commands)
  - [Settings](#settings)
  - [Exceptions](#exceptions)

## Minimum Requirements

The following Operating Systems are supported:

- Windows:
  - Windows 10 1607
  - Windows 11 22000
  - Windows Server 2012
  - Windows Server Core	2012
- Linux (glibc 2.17):
  - Alpine Linux 3.15
  - CentOS 7
  - Debian 10
  - Fedora 36
  - openSUSE 15
  - Oracle Linux 7
  - Red Hat Enterprise Linux 7
  - SUSE Enterprise Linux (SLES) 12 SP2
  - Ubuntu 18.04

## Changelog

- Version **4.2**:
  - Reduced glibc minimum version to 2.17 on Linux
  - Added "Logging()" function to enable/disable logging
  - Added "BaseFolder()" function to set a custom base folder
  - Added new setting "DatabaseFolder" to set the Database folder path
  - Fixed C++ binding will return "Success=false" correctly when failing to scan a file 

- Version **4.1**:
  - Upgraded from .NET 5 to .NET 7
  - C++ bindings now also support Linux
  - Changed how exceptions are handled in C++ bindings

- Version **4.0**:
  - Completely redone in .NET 5
  - Now supports Linux (CLI and C# bindings only)
  - Added XvirusAI scan engine (BETA)
  - Scan speed is up to 2x faster
  - Fixed memory usage spike when scanning large files
  - Removed file size limit for scanned files by default
  - The checkUpdate function can now check for SDK updates
  - Added 3 new settings "EnableAIScan", "MaxScanLength" and "DatabaseVersion"

## Known Issues

- XvirusAI engine is still in BETA. It is not recomended to use in production yet.
- XvirusAI engine does not work in C++ bindings.
- The checkUpdate function can now check for SDK updates but can't update it

## Get Started

You can run it by opening executable file in the bin folder with a command as the execution argument. For example: `XvirusSDK.exe interactive`.

## Avaiable Commands

You have the following commands available:

- **Interactive** - Starts Xvirus CLI in interactive mode. When in this mode you can write commands and the executable will keep running until you call the `quit` command.
- **Quit** - Stop Xvirus CLI execution.
- **Load** 'force' - Loads Xvirus Scan Engine into memory, if set `force`=true it will reload the scan engine, even if it is already loaded.
- **Unload** - Unloads Xvirus Scan Engine from memory.
- **Scan** 'filepath' - Scans the file located at `filepath`. It will print one of the following messages:
  - "**Safe**" - If no malware is detected.
  - "**Malware**" - If malware is detected but the name isn't known.
  - **_Malware Name_** - If it is malware from a known family (example: "Trojan.Downloader").
  - "**AI.{aiScore}**" - Score of the file using XvirusAI from 0 to 100, the higher the score the more probable it is malicious (example: "AI.99").
  - "**File not found!**" - If no file is found in the submited path.
  - "**File too big!**" - If the file size is bigger than the set limit.
  - "**Could not get file hash!**" - There was an error calculating the hash of the file.
- **Update** 'checkSDKUpdates' 'loadDBAfterUpdate' - Checks and updates the databases and AI engine to the most recent versions. If `checkSDKUpdates`=true then it will also check for SDK updates. If `loadDBAfterUpdate`=true then it will reload the Xvirus Scan Engine after the update is done. It can print the following messages:
  - "**There is a new SDK version available!**"
  - "**Database was updated!**"
  - "**Database is up-to-date!**"
- **Logging** 'enableLogging' - Sets and prints if `Logging` is enabled. If no `enableLogging` value is provided it will only print.
- **BaseFolder** 'baseFolder' - Sets and prints the `BaseFolder` path. If no `baseFolder` value is provided it will only print.
- **Settings** - Prints the `settings.json` file.
- **Version** - Prints the version of the SDK/CLI.

## Settings

Settings are located in the "`settings.json`" file in the root folder of the SDK. There are 5 avaiable options:

- **EnableHeuristics** - Enables heuristics scanning of files. Default: _true_
- **EnableAIScan** - Enables XvirusAI scan engine. This feature is still in BETA. Default: _false_
- **MaxScanLength** - Maximum file size to be scanned in bytes. If set "null" then there is no limit. Default: _null_
- **DatabaseFolder** - Path to the database folder, it accepts both relative and absolute paths. Default: _"Database"_
- **DatabaseVersion** - KeyValue list of database files version. This is updated automatically when using the "checkUpdate()" function.

Example of a `settings.json` file:

```JSON
{
  "EnableHeuristics": true,
  "EnableAIScan": false,
  "MaxScanLength": null,
  "DatabaseFolder": "Database",
  "DatabaseVersion": {
    "AIModel": 0,
    "MainDB": 0,
    "DailyDB": 0,
    "WhiteDB": 0,
    "DailywlDB": 0,
    "HeurDB": 0,
    "HeurDB2": 0,
    "MalvendorDB": 0
  }
}
```

## Exceptions

If any of the functions fail it may return an exception. Exception will stop the execution of the CLI.

All exceptions are logged in the `errorlog.txt` file.