Merge branch 'main' of https://git.mamahaha.work/sangge/BackDoorBuster into feature/pyc-detection

This commit is contained in:
dqy
2024-05-31 19:20:35 +08:00
10 changed files with 687 additions and 244 deletions

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detection/__main__.py Normal file
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import os
from typing import Dict, List, Tuple, Optional
from reportlab.lib.pagesizes import letter
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import Paragraph, Spacer, SimpleDocTemplate
from .Regexdetection import find_dangerous_functions
from .GPTdetection import detectGPT
from .pyc_detection import disassemble_pyc
from .utils import *
import sys
from colorama import init, Fore, Style
SUPPORTED_EXTENSIONS = {".py", ".js", ".cpp", ".pyc"}
OUTPUT_FORMATS = ["html", "md", "txt", "pdf"]
ORDERS = [
"__import__",
"system",
"exec",
"popen",
"eval",
"subprocess",
"__getattribute__",
"getattr",
"child_process",
]
# Initialize colorama
init(autoreset=True)
ORANGE = "\033[38;5;214m"
CYAN = Fore.CYAN
def supports_color() -> bool:
"""
Checks if the running terminal supports color output.
Returns:
bool: True if the terminal supports color, False otherwise.
"""
# Windows support
if sys.platform == "win32":
return True
# Check if output is a TTY (terminal)
if hasattr(sys.stdout, "isatty") and sys.stdout.isatty():
return True
return False
def supports_emoji() -> bool:
"""
Checks if the running terminal supports emoji output.
Returns:
bool: True if the terminal supports emoji, False otherwise.
"""
# This is a simple check. Modern terminals typically support emoji.
return sys.platform != "win32" or os.getenv("WT_SESSION") is not None
def highlight_orders(line: str, risk_level: str, use_color: bool) -> str:
"""
Highlights specific orders in the line based on risk level.
Args:
line (str): The line to highlight.
risk_level (str): The risk level of the line ("high", "medium", "low").
use_color (bool): Whether to use color for highlighting.
Returns:
str: The highlighted line.
"""
risk_colors = {
"high": Fore.RED,
"medium": Fore.YELLOW,
"low": CYAN,
}
color = risk_colors.get(risk_level, Fore.WHITE) if use_color else ""
reset = Style.RESET_ALL if use_color else ""
for order in ORDERS:
line = line.replace(order, f"{color}{order}{reset}")
return line
def generate_text_content(results: Dict[str, List[Tuple[int, str]]]) -> str:
"""
Generates a formatted text report for security analysis results.
Args:
results (Dict[str, List[Tuple[int, str]]]): The security analysis results categorized by risk levels.
Returns:
str: The formatted text report as a string.
"""
use_color = supports_color()
use_emoji = supports_emoji()
text_output = "Security Analysis Report\n"
text_output += "=" * 30 + "\n\n"
for risk_level, entries in results.items():
if entries and risk_level != "none":
risk_color = (
{
"high": Fore.RED,
"medium": Fore.YELLOW,
"low": Fore.GREEN,
}.get(risk_level, Fore.WHITE)
if use_color
else ""
)
risk_title = (
{
"High": "👹",
"Medium": "👾",
"Low": "👻",
}
if use_emoji
else {
"High": "",
"Medium": "",
"Low": "",
}
)
text_output += f"{risk_color}{risk_level.capitalize()} Risk{risk_title[risk_level.capitalize()]}:{Style.RESET_ALL if use_color else ''}\n"
text_output += "-" * (len(risk_level) + 6) + "\n"
for line_num, line in entries:
line = highlight_orders(line, risk_level, use_color)
line_text = f"{Style.RESET_ALL if use_color else ''} {Fore.GREEN if use_color else ''}{line_num}{Style.RESET_ALL if use_color else ''}: {line}{Style.RESET_ALL if use_color else ''}\n"
text_output += line_text
text_output += "\n"
return text_output
def output_results(
results: Dict[str, List[Tuple[int, str]]],
output_format: str,
output_file: Optional[str] = None,
) -> None:
"""
Outputs the security analysis results in the specified format.
Args:
results (Dict[str, List[Tuple[int, str]]]): The security analysis results categorized by risk levels.
output_format (str): The format to output the results in. Supported formats: "pdf", "html", "md", "txt".
output_file (Optional[str]): The name of the file to save the output. If None, prints to the terminal.
"""
OUTPUT_FORMATS = {"pdf", "html", "md", "txt"}
if output_file:
file_name, file_ext = os.path.splitext(output_file)
if output_format not in OUTPUT_FORMATS:
output_format = "txt"
output_file = f"{file_name}.txt"
results_dir = os.path.dirname(output_file)
if not os.path.exists(results_dir) and results_dir != "":
os.makedirs(results_dir)
if output_format == "pdf":
output_pdf(results, output_file)
elif output_format == "html":
output_html(results, output_file)
elif output_format == "md":
output_markdown(results, output_file)
else: # Default to txt
output_text(results, output_file)
else:
# If no output file is specified, default to text output to the terminal.
txt_output = generate_text_content(results)
print(txt_output)
def output_pdf(results: Dict[str, List[Tuple[int, str]]], file_name):
doc = SimpleDocTemplate(file_name, pagesize=letter)
story = []
styles = getSampleStyleSheet()
# Add the title centered
title_style = styles["Title"]
title_style.alignment = 1 # Center alignment
title = Paragraph("Security Analysis Report", title_style)
story.append(title)
story.append(Spacer(1, 20)) # Space after title
# Add risk levels and entries
normal_style = styles["BodyText"]
for risk_level, entries in results.items():
if risk_level != "none":
story.append(
Paragraph(f"{risk_level.capitalize()} Risk:", styles["Heading2"])
)
for line_num, line in entries:
entry = Paragraph(f"Line {line_num}: {line}", normal_style)
story.append(entry)
story.append(Spacer(1, 12)) # Space between sections
doc.build(story)
def output_html(results: Dict[str, List[Tuple[int, str]]], file_name=None):
"""
Generates an HTML report for security analysis results.
Args:
results (Dict[str, List[Tuple[int, str]]]): The security analysis results categorized by risk levels.
file_name (Optional[str]): The name of the file to save the HTML output. If None, returns the HTML string.
Returns:
Optional[str]: The HTML string if file_name is None, otherwise None.
"""
html_output = """
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="icon" href="https://s2.loli.net/2024/05/30/WDc6MekjbuCU9Qo.png">
<title>Security Analysis Report</title>
<style>
body {
background-image: url('https://s2.loli.net/2024/05/30/85Mv7leB2IRWNp6.jpg');
background-size: 100%, auto;
background-attachment: fixed;
font-family: Arial, sans-serif;
}
h1, h2 {
color: white;
}
ul {
list-style-type: none;
padding: 0;
}
li {
background: rgba(255, 255, 255, 0.8);
margin: 5px 0;
padding: 10px;
border-radius: 5px;
}
</style>
</head>
<body>
<h1>Security Analysis Report</h1>
"""
for risk_level, entries in results.items():
if risk_level != "none":
risk_title = {
"High": f"<h2>{risk_level.capitalize()} Risk👹</h2><ul>",
"Medium": f"<h2>{risk_level.capitalize()} Risk👾</h2><ul>",
"Low": f"<h2>{risk_level.capitalize()} Risk👻</h2><ul>",
}
html_output += risk_title[risk_level.capitalize()]
for line_num, line in entries:
html_output += f"<li>{line_num}: {line}</li>"
html_output += "</ul>"
html_output += "</body></html>"
if file_name:
with open(file_name, "w", encoding="utf-8") as file:
file.write(html_output)
return None
else:
return html_output
def output_markdown(results: Dict[str, List[Tuple[int, str]]], file_name=None):
"""
Generates a Markdown report for security analysis results.
Args:
results (Dict[str, List[Tuple[int, str]]]): The security analysis results categorized by risk levels.
file_name (Optional[str]): The name of the file to save the Markdown output. If None, returns the Markdown string.
Returns:
Optional[str]: The Markdown string if file_name is None, otherwise None.
"""
md_output = "# Security Analysis Report\n\n"
for risk_level, entries in results.items():
if risk_level != "none":
md_output += f"## {risk_level.capitalize()} Risk\n\n"
md_output += "| Line Number | Description |\n"
md_output += "|-------------|-------------|\n"
for line_num, line in entries:
md_output += f"| {line_num} | {line} |\n"
md_output += "\n"
if file_name:
with open(file_name, "w") as file:
file.write(md_output)
return None
else:
return md_output
def output_text(results: Dict[str, List[Tuple[int, str]]], file_name=None):
"""
Generates a plain text report for security analysis results.
Args:
results (Dict[str, List[Tuple[int, str]]]): The security analysis results categorized by risk levels.
file_name (Optional[str]): The name of the file to save the text output. If None, returns the text string.
Returns:
Optional[str]: The text string if file_name is None, otherwise None.
"""
text_output = "Security Analysis Report\n"
text_output += "=" * len("Security Analysis Report") + "\n\n"
for risk_level, entries in results.items():
if risk_level != "none":
text_output += f"{risk_level.capitalize()} Risk:\n"
text_output += "-" * len(f"{risk_level.capitalize()} Risk:") + "\n"
for line_num, line in entries:
text_output += f" Line {line_num}: {line}\n"
text_output += "\n"
if file_name:
with open(file_name, "w") as file:
file.write(text_output)
return None
else:
return text_output
def checkModeAndDetect(mode: str, filePath: str, fileExtension: str, pycdc_addr: str):
# TODO:添加更多方式,这里提高代码的复用性和扩展性
if fileExtension == ".pyc":
# 反汇编pyc文件
file_content = disassemble_pyc(filePath, pycdc_addr)
if mode == "regex":
return find_dangerous_functions(file_content, fileExtension)
elif mode == "llm":
return detectGPT(file_content)
else:
return find_dangerous_functions(file_content, fileExtension)
else:
file_content = read_file_content(filePath)
if mode == "regex":
return find_dangerous_functions(file_content, fileExtension)
elif mode == "llm":
return detectGPT(file_content)
else:
return find_dangerous_functions(file_content, fileExtension)
def process_path(
path: str, output_format: str, mode: str, pycdc_addr: str, output_file=None
):
results = {"high": [], "medium": [], "low": [], "none": []}
if os.path.isdir(path):
for root, dirs, files in os.walk(path):
for file in files:
file_extension = os.path.splitext(file)[1]
if file_extension in SUPPORTED_EXTENSIONS:
file_path = os.path.join(root, file)
file_results = checkModeAndDetect(
mode, file_path, file_extension, pycdc_addr
)
for key in file_results:
if key != "none": # Exclude 'none' risk level
results[key].extend(
[
(f"{file_path}: Line {line_num}", line)
for line_num, line in file_results[key]
]
)
elif os.path.isfile(path):
file_extension = os.path.splitext(path)[1]
if file_extension in SUPPORTED_EXTENSIONS:
file_results = checkModeAndDetect(mode, path, file_extension, pycdc_addr)
for key in file_results:
if key != "none": # Exclude 'none' risk level
results[key].extend(
[
(f"{path}: Line {line_num}", line)
for line_num, line in file_results[key]
]
)
else:
print("Unsupported file type.")
return
else:
print("Invalid path.")
sys.exit(1)
output_results(results, output_format, output_file)
def main():
import argparse
parser = argparse.ArgumentParser(
description="Backdoor detection tool.", prog="detection"
)
parser.add_argument("path", help="Path to the code to analyze")
parser.add_argument("-o", "--output", help="Output file path", default=None)
parser.add_argument(
"-m", "--mode", help="Mode of operation:[regex,llm]", default="regex"
)
parser.add_argument(
"-p", "--pycdc", help="Path to pycdc.exe to decompile", default=None
)
args = parser.parse_args()
output_format = "txt" # Default output format
output_file = None
if args.output:
_, ext = os.path.splitext(args.output)
ext = ext.lower()
if ext in [".html", ".md", ".txt", ".pdf"]:
output_format = ext.replace(".", "")
output_file = args.output
else:
print(
"Your input file format was incorrect, the output has been saved as a TXT file."
)
output_file = args.output.rsplit(".", 1)[0] + ".txt"
# 如果未指定输出文件,则输出到 stdout否则写入文件
process_path(args.path, output_format, args.mode, args.pycdc, output_file)
if __name__ == "__main__":
main()