Delete main.py
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main.py
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import pandas as pd
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from sklearn.feature_extraction.text import TfidfVectorizer
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from sklearn.model_selection import train_test_split
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from sklearn.naive_bayes import MultinomialNB
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from sklearn.metrics import accuracy_score
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import nltk
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from nltk.corpus import stopwords
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import re
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# Download NLTK stopwords
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nltk.download('stopwords')
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# Load dataset
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# Assuming you have a CSV file with 'url' and 'label' columns
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data = pd.read_csv('malicious_phish.csv')
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# Preprocess URLs
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def preprocess_url(url):
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url = re.sub(r"http\S+", "", url) # Remove http links
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url = re.sub(r"\d+", "", url) # Remove digits
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url = re.sub(r"\W", " ", url) # Remove non-word characters
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url = url.lower() # Convert to lowercase
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return url
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data['url'] = data['url'].apply(preprocess_url)
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# Split data into training and testing sets
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X = data['url']
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y = data['type']
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X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)
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# Vectorize URLs using TF-IDF
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vectorizer = TfidfVectorizer(stop_words=stopwords.words('english'))
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X_train_tfidf = vectorizer.fit_transform(X_train)
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X_test_tfidf = vectorizer.transform(X_test)
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# Train a Naive Bayes classifier
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model = MultinomialNB()
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model.fit(X_train_tfidf, y_train)
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# Predict and evaluate
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y_pred = model.predict(X_test_tfidf)
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accuracy = accuracy_score(y_test, y_pred)
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print(f"Accuracy: {accuracy * 100:.2f}%")
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# Function to predict if a URL is malicious
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def predict_url(url):
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processed_url = preprocess_url(url)
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vectorized_url = vectorizer.transform([processed_url])
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prediction = model.predict(vectorized_url)
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return prediction[0]
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# Example usage
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print(predict_url("br-icloud.com.br"))
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