264 lines
9.7 KiB
Nim
264 lines
9.7 KiB
Nim
import argparse, times, strformat, terminal, nanoid, tables, json, sequtils
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import ../../types
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#[
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Agent Argument parsing
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]#
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proc initAgentCommands*(): Table[CommandType, Command] =
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var commands = initTable[CommandType, Command]()
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commands[ExecuteShell] = Command(
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name: "shell",
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commandType: ExecuteShell,
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description: "Execute a shell command and retrieve the output.",
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example: "shell whoami /all",
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arguments: @[
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Argument(name: "command", description: "Command to be executed.", argumentType: String, isRequired: true),
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Argument(name: "arguments", description: "Arguments to be passed to the command.", argumentType: String, isRequired: false)
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]
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)
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commands[Sleep] = Command(
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name: "sleep",
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commandType: Sleep,
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description: "Update sleep delay configuration.",
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example: "sleep 5",
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arguments: @[
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Argument(name: "delay", description: "Delay in seconds.", argumentType: Int, isRequired: true)
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]
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)
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commands[GetWorkingDirectory] = Command(
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name: "pwd",
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commandType: GetWorkingDirectory,
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description: "Retrieve current working directory.",
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example: "pwd",
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arguments: @[]
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)
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commands[SetWorkingDirectory] = Command(
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name: "cd",
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commandType: SetWorkingDirectory,
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description: "Change current working directory.",
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example: "cd C:\\Windows\\Tasks",
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arguments: @[
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Argument(name: "directory", description: "Relative or absolute path of the directory to change to.", argumentType: String, isRequired: true)
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]
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)
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commands[ListDirectory] = Command(
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name: "ls",
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commandType: ListDirectory,
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description: "List files and directories.",
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example: "ls C:\\Users\\Administrator\\Desktop",
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arguments: @[
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Argument(name: "directory", description: "Relative or absolute path. Default: current working directory.", argumentType: String, isRequired: false)
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]
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)
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commands[RemoveFile] = Command(
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name: "rm",
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commandType: RemoveFile,
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description: "Remove a file.",
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example: "rm C:\\Windows\\Tasks\\payload.exe",
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arguments: @[
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Argument(name: "file", description: "Relative or absolute path to the file to delete.", argumentType: String, isRequired: true)
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]
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)
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commands[RemoveDirectory] = Command(
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name: "rmdir",
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commandType: RemoveDirectory,
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description: "Remove a directory.",
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example: "rm C:\\Payloads",
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arguments: @[
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Argument(name: "directory", description: "Relative or absolute path to the directory to delete.", argumentType: String, isRequired: true)
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]
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)
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commands[Move] = Command(
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name: "move",
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commandType: Move,
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description: "Move a file or directory.",
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example: "move source.exe C:\\Windows\\Tasks\\destination.exe",
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arguments: @[
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Argument(name: "source", description: "Source file path.", argumentType: String, isRequired: true),
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Argument(name: "destination", description: "Destination file path.", argumentType: String, isRequired: true)
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]
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)
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commands[Copy] = Command(
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name: "copy",
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commandType: Copy,
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description: "Copy a file or directory.",
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example: "copy source.exe C:\\Windows\\Tasks\\destination.exe",
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arguments: @[
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Argument(name: "source", description: "Source file path.", argumentType: String, isRequired: true),
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Argument(name: "destination", description: "Destination file path.", argumentType: String, isRequired: true)
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]
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)
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return commands
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let commands = initAgentCommands()
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proc getCommandFromTable(cmd: string, commands: Table[CommandType, Command]): (CommandType, Command) =
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let commandType = parseEnum[CommandType](cmd.toLowerAscii())
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let command = commands[commandType]
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(commandType, command)
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proc parseAgentCommand(input: string): seq[string] =
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var i = 0
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while i < input.len:
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# Skip whitespaces/tabs
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while i < input.len and input[i] in {' ', '\t'}:
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inc i
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if i >= input.len:
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break
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var arg = ""
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if input[i] == '"':
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# Parse quoted argument
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inc i # Skip opening quote
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# Add parsed argument when quotation is closed
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while i < input.len and input[i] != '"':
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arg.add(input[i])
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inc i
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if i < input.len:
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inc i # Skip closing quote
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else:
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while i < input.len and input[i] notin {' ', '\t'}:
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arg.add(input[i])
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inc i
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# Add argument to returned result
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if arg.len > 0: result.add(arg)
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proc displayHelp(cq: Conquest, commands: Table[CommandType, Command]) =
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cq.writeLine("Available commands:")
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cq.writeLine(" * back")
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for key, cmd in commands:
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cq.writeLine(fmt" * {cmd.name:<15}{cmd.description}")
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cq.writeLine()
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proc displayCommandHelp(cq: Conquest, command: Command) =
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var usage = command.name & " " & command.arguments.mapIt(
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if it.isRequired: fmt"<{it.name}>" else: fmt"[{it.name}]"
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).join(" ")
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if command.example != "":
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usage &= "\nExample : " & command.example
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cq.writeLine(fmt"""
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{command.description}
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Usage : {usage}
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""")
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if command.arguments.len > 0:
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cq.writeLine("Arguments:")
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let header = @["Name", "Type", "", "Description"]
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cq.writeLine(fmt" {header[0]:<15} {header[1]:<8}{header[2]:<10} {header[3]}")
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cq.writeLine(fmt" {'-'.repeat(15)} {'-'.repeat(18)} {'-'.repeat(20)}")
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for arg in command.arguments:
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let requirement = if arg.isRequired: "(REQUIRED)" else: "(OPTIONAL)"
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cq.writeLine(fmt" * {arg.name:<15} {($arg.argumentType).toUpperAscii():<8}{requirement:<10} {arg.description}")
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cq.writeLine()
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proc handleHelp(cq: Conquest, parsed: seq[string], commands: Table[CommandType, Command]) =
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try:
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# Try parsing the first argument passed to 'help' as a command
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let (commandType, command) = getCommandFromTable(parsed[1], commands)
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cq.displayCommandHelp(command)
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except IndexDefect:
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# 'help' command is called without additional parameters
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cq.displayHelp(commands)
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except ValueError:
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# Command was not found
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cq.writeLine(fgRed, styleBright, fmt"[-] The command '{parsed[1]}' does not exist." & '\n')
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proc packageArguments(cq: Conquest, command: Command, arguments: seq[string]): JsonNode =
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# Construct a JSON payload with argument names and values
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result = newJObject()
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let parsedArgs = if arguments.len > 1: arguments[1..^1] else: @[] # Remove first element from sequence to only handle arguments
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# Check if the correct amount of parameters are passed
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if parsedArgs.len < command.arguments.filterIt(it.isRequired).len:
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cq.displayCommandHelp(command)
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raise newException(ValueError, "Missing required arguments.")
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for i, argument in command.arguments:
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# Argument provided - convert to the corresponding data type
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if i < parsedArgs.len:
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case argument.argumentType:
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of Int:
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result[argument.name] = %parseUInt(parsedArgs[i])
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of Binary:
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# Read file into memory and convert it into a base64 string
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result[argument.name] = %""
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else:
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# The last optional argument is joined together
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# This is required for non-quoted input with infinite length, such as `shell mv arg1 arg2`
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if i == command.arguments.len - 1 and not argument.isRequired:
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result[argument.name] = %parsedArgs[i..^1].join(" ")
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else:
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result[argument.name] = %parsedArgs[i]
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# Argument not provided - set to empty string for optional args
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else:
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# If a required argument is not provided, display the help text
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if argument.isRequired:
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cq.displayCommandHelp(command)
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return
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else:
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result[argument.name] = %""
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proc createTask*(cq: Conquest, command: CommandType, args: string, message: string) =
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let
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date = now().format("dd-MM-yyyy HH:mm:ss")
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task = Task(
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id: generate(alphabet=join(toSeq('A'..'Z'), ""), size=8),
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agent: cq.interactAgent.name,
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command: command,
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args: args,
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)
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cq.interactAgent.tasks.add(task)
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cq.writeLine(fgBlack, styleBright, fmt"[{date}] [*] ", resetStyle, message)
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proc handleAgentCommand*(cq: Conquest, input: string) =
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# Return if no command (or just whitespace) is entered
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if input.replace(" ", "").len == 0: return
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let date: string = now().format("dd-MM-yyyy HH:mm:ss")
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cq.writeLine(fgBlue, styleBright, fmt"[{date}] ", fgYellow, fmt"[{cq.interactAgent.name}] ", resetStyle, styleBright, input)
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let parsedArgs = parseAgentCommand(input)
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# Handle 'back' command
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if parsedArgs[0] == "back":
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return
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# Handle 'help' command
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if parsedArgs[0] == "help":
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cq.handleHelp(parsedArgs, commands)
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return
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# Handle commands with actions on the agent
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try:
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let (commandType, command) = getCommandFromTable(parsedArgs[0], commands)
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let payload = cq.packageArguments(command, parsedArgs)
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cq.createTask(commandType, $payload, fmt"Tasked agent to {command.description.toLowerAscii()}")
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except ValueError as err:
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cq.writeLine(fgRed, styleBright, fmt"[-] {err.msg}" & "\n")
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return |