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ma_cisco_malware
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load names with data for per-user evaluation

This commit is contained in:
René Knaebel 2017-09-02 16:02:48 +02:00
parent 0db8427457
commit 3f6779fa3d
3 changed files with 91 additions and 50 deletions
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64
dataset.py
View File

@ -106,42 +106,42 @@ def create_dataset_from_flows(user_flow_df, char_dict, max_len, window_size=10):
results.append(pool.apply_async(get_user_chunks, (user_flow, window_size)))
windows = [window for res in results for window in res.get()]
logger.info("create training dataset")
domain_tr, flow_tr, hits_tr, _, server_tr, trusted_hits_tr = create_dataset_from_lists(chunks=windows,
vocab=char_dict,
max_len=max_len)
domain, flow, hits, names, server, trusted_hits = create_dataset_from_lists(chunks=windows,
vocab=char_dict,
max_len=max_len)
# make client labels discrete with 4 different values
hits_tr = np.apply_along_axis(lambda x: discretize_label(x, 3), 0, np.atleast_2d(hits_tr))
hits = np.apply_along_axis(lambda x: discretize_label(x, 3), 0, np.atleast_2d(hits))
# select only 1.0 and 0.0 from training data
pos_idx = np.where(np.logical_or(hits_tr == 1.0, trusted_hits_tr >= 1.0))[0]
neg_idx = np.where(hits_tr == 0.0)[0]
pos_idx = np.where(np.logical_or(hits == 1.0, trusted_hits >= 1.0))[0]
neg_idx = np.where(hits == 0.0)[0]
idx = np.concatenate((pos_idx, neg_idx))
# choose selected sample to train on
domain_tr = domain_tr[idx]
flow_tr = flow_tr[idx]
domain = domain[idx]
flow = flow[idx]
client_tr = np.zeros_like(idx, float)
client_tr[:pos_idx.shape[-1]] = 1.0
server_tr = server_tr[idx]
server = server[idx]
names = names[idx]
# client_tr = np_utils.to_categorical(client_tr, 2)
return domain_tr, flow_tr, client_tr, server_tr
return domain, flow, names, client_tr, server
def store_h5dataset(path, domain_tr, flow_tr, client_tr, server_tr):
def store_h5dataset(path, domain, flow, name, client, server):
f = h5py.File(path, "w")
domain_tr = domain_tr.astype(np.int8)
f.create_dataset("domain", data=domain_tr)
f.create_dataset("flow", data=flow_tr)
server_tr = server_tr.astype(np.bool)
client_tr = client_tr.astype(np.bool)
f.create_dataset("client", data=client_tr)
f.create_dataset("server", data=server_tr)
domain = domain.astype(np.int8)
f.create_dataset("domain", data=domain)
f.create_dataset("flow", data=flow)
f.create_dataset("name", data=name)
server = server.astype(np.bool)
client = client.astype(np.bool)
f.create_dataset("client", data=client)
f.create_dataset("server", data=server)
f.close()
def load_h5dataset(path):
data = h5py.File(path, "r")
return data["domain"], data["flow"], data["client"], data["server"]
return data["domain"], data["flow"], data["name"], data["client"], data["server"]
def create_dataset_from_lists(chunks, vocab, max_len):
@ -166,7 +166,9 @@ def create_dataset_from_lists(chunks, vocab, max_len):
logger.info(" select hits")
hits = np.max(np.stack(map(lambda f: f.virusTotalHits, chunks)), axis=1)
logger.info(" select names")
names = np.unique(np.stack(map(lambda f: f.user_hash, chunks)))
names = np.stack(map(lambda f: f.user_hash, chunks))
assert (names[:, :1].repeat(10, axis=1) == names).all()
names = names[:, 0]
logger.info(" select servers")
servers = np.stack(map(lambda f: f.serverLabel, chunks))
logger.info(" select trusted hits")
@ -222,15 +224,29 @@ def load_or_generate_h5data(h5data, train_data, domain_length, window_size):
logger.info("h5 data not found - load csv file")
user_flow_df = get_user_flow_data(train_data)
logger.info("create training dataset")
domain_tr, flow_tr, client_tr, server_tr = create_dataset_from_flows(user_flow_df, char_dict,
domain, flow, names, client, server = create_dataset_from_flows(user_flow_df, char_dict,
max_len=domain_length,
window_size=window_size)
logger.info("store training dataset as h5 file")
store_h5dataset(h5data, domain_tr, flow_tr, client_tr, server_tr)
store_h5dataset(h5data, domain, flow, names, client, server)
logger.info("load h5 dataset")
return load_h5dataset(h5data)
def generate_names(train_data, window_size):
user_flow_df = get_user_flow_data(train_data)
with Pool() as pool:
results = []
for user_flow in tqdm(get_flow_per_user(user_flow_df),
total=len(user_flow_df['user_hash'].unique().tolist())):
results.append(pool.apply_async(get_user_chunks, (user_flow, window_size)))
windows = [window for res in results for window in res.get()]
names = np.stack(map(lambda f: f.user_hash, windows))
names = names[:, 0]
return names
def load_or_generate_domains(train_data, domain_length):
fn = f"{train_data}_domains.gz"
char_dict = get_character_dict()

52
main.py
View File

@ -106,8 +106,8 @@ def main_hyperband():
}
logger.info("create training dataset")
domain_tr, flow_tr, client_tr, server_tr = load_or_generate_h5data(args.train_h5data, args.train_data,
args.domain_length, args.window)
domain_tr, flow_tr, name_tr, client_tr, server_tr = load_or_generate_h5data(args.train_h5data, args.train_data,
args.domain_length, args.window)
hp = hyperband.Hyperband(params,
[domain_tr, flow_tr],
[client_tr, server_tr])
@ -120,8 +120,10 @@ def main_train(param=None):
exists_or_make_path(args.model_path)
logger.info(f"Use command line arguments: {args}")
domain_tr, flow_tr, client_tr, server_windows_tr = load_or_generate_h5data(args.train_h5data, args.train_data,
args.domain_length, args.window)
domain_tr, flow_tr, name_tr, client_tr, server_windows_tr = load_or_generate_h5data(args.train_h5data,
args.train_data,
args.domain_length,
args.window)
if not param:
param = PARAMS
@ -169,6 +171,8 @@ def main_train(param=None):
labels = [client_tr]
elif args.model_output == "server":
labels = [server_tr]
else:
raise ValueError("unknown model output")
model.fit([domain_tr, flow_tr],
labels,
@ -184,8 +188,10 @@ def main_train(param=None):
def main_test():
logger.info("start test: load data")
domain_val, flow_val, client_val, server_val = load_or_generate_h5data(args.test_h5data, args.test_data,
args.domain_length, args.window)
domain_val, flow_val, name_val, client_val, server_val = load_or_generate_h5data(args.test_h5data,
args.test_data,
args.domain_length,
args.window)
domain_encs, labels = dataset.load_or_generate_domains(args.test_data, args.domain_length)
for model_args in get_model_args(args):
@ -212,8 +218,10 @@ def main_test():
def main_visualization():
domain_val, flow_val, client_val, server_val = load_or_generate_h5data(args.test_h5data, args.test_data,
args.domain_length, args.window)
domain_val, flow_val, name_val, client_val, server_val = load_or_generate_h5data(args.test_h5data,
args.test_data,
args.domain_length,
args.window)
# client_val, server_val = client_val.value, server_val.value
client_val = client_val.value
@ -246,6 +254,22 @@ def main_visualization():
visualize.plot_roc_curve(client_val, client_pred)
visualize.plot_save("{}/client_roc.png".format(args.model_path))
# visualize.plot_roc_curve(server_val, server_pred, "{}/server_roc.png".format(args.model_path))
print(f"names {name_val.shape} vals {client_val.shape} preds {client_pred.shape}")
df_val = pd.DataFrame(data={"names": name_val, "client_val": client_val})
user_vals = df_val.groupby(df_val.names).max().client_val.as_matrix().astype(float)
df_pred = pd.DataFrame(data={"names": name_val, "client_val": client_val})
user_preds = df_pred.groupby(df_pred.names).max().client_val.as_matrix().astype(float)
visualize.plot_clf()
visualize.plot_precision_recall(user_vals, user_preds)
visualize.plot_save("{}/user_client_prc.png".format(args.model_path))
visualize.plot_clf()
visualize.plot_roc_curve(user_vals, user_preds)
visualize.plot_save("{}/user_client_roc.png".format(args.model_path))
visualize.plot_confusion_matrix(client_val, client_pred.flatten().round(),
"{}/client_cov.png".format(args.model_path),
normalize=False, title="Client Confusion Matrix")
@ -259,8 +283,10 @@ def main_visualization():
def main_visualize_all():
domain_val, flow_val, client_val, server_val = load_or_generate_h5data(args.test_h5data, args.test_data,
args.domain_length, args.window)
domain_val, flow_val, name_val, client_val, server_val = load_or_generate_h5data(args.test_h5data,
args.test_data,
args.domain_length,
args.window)
logger.info("plot pr curves")
visualize.plot_clf()
for model_args in get_model_args(args):
@ -282,9 +308,9 @@ def main_data():
char_dict = dataset.get_character_dict()
user_flow_df = dataset.get_user_flow_data(args.train_data)
logger.info("create training dataset")
domain_tr, flow_tr, client_tr, server_tr, _ = dataset.create_dataset_from_flows(user_flow_df, char_dict,
max_len=args.domain_length,
window_size=args.window)
domain_tr, flow_tr, name_tr, client_tr, server_tr = dataset.create_dataset_from_flows(user_flow_df, char_dict,
max_len=args.domain_length,
window_size=args.window)
print(f"domain shape {domain_tr.shape}")
print(f"flow shape {flow_tr.shape}")
print(f"client shape {client_tr.shape}")

25
visualize.py
View File

@ -9,7 +9,7 @@ from sklearn.metrics import (
)
def scores(y_true, y_pred):
def scores(y_true):
for (path, dirnames, fnames) in os.walk("results/"):
for f in fnames:
if path[-1] == "1" and f.endswith("npy"):
@ -48,7 +48,7 @@ def plot_precision_recall(y, y_pred, label=""):
y = y.flatten()
y_pred = y_pred.flatten()
precision, recall, thresholds = precision_recall_curve(y, y_pred)
decreasing_max_precision = np.maximum.accumulate(precision)[::-1]
# decreasing_max_precision = np.maximum.accumulate(precision)[::-1]
# fig, ax = plt.subplots(1, 1)
# ax.hold(True)
@ -58,15 +58,15 @@ def plot_precision_recall(y, y_pred, label=""):
plt.ylabel('Precision')
def plot_precision_recall_curves(y, y_pred):
y = y.flatten()
y_pred = y_pred.flatten()
precision, recall, thresholds = precision_recall_curve(y, y_pred)
plt.plot(recall, label="Recall")
plt.plot(precision, label="Precision")
plt.xlabel('Threshold')
plt.ylabel('Score')
# def plot_precision_recall_curves(y, y_pred):
# y = y.flatten()
# y_pred = y_pred.flatten()
# precision, recall, thresholds = precision_recall_curve(y, y_pred)
#
# plt.plot(recall, label="Recall")
# plt.plot(precision, label="Precision")
# plt.xlabel('Threshold')
# plt.ylabel('Score')
def score_model(y, prediction):
@ -87,8 +87,7 @@ def plot_roc_curve(mask, prediction, label=""):
y_pred = prediction.flatten()
fpr, tpr, thresholds = roc_curve(y, y_pred)
roc_auc = auc(fpr, tpr)
plt.plot(fpr, tpr, label=label)
print("roc_auc", roc_auc)
plt.plot(fpr, tpr, label=f"{label} - {roc_auc}")
def plot_confusion_matrix(y_true, y_pred, path,