290 lines
9.1 KiB
Python
290 lines
9.1 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
"""
|
||
|
|
Convert CSIC 2010 HTTP dataset files into Sunbeam audit-log JSONL format.
|
||
|
|
|
||
|
|
The CSIC 2010 dataset contains raw HTTP/1.1 requests separated by blank lines.
|
||
|
|
Label is determined by which file it came from (normal vs anomalous).
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
# Download the dataset first:
|
||
|
|
git clone https://github.com/msudol/Web-Application-Attack-Datasets.git /tmp/csic
|
||
|
|
|
||
|
|
# Convert all three files:
|
||
|
|
python3 scripts/convert_csic.py \
|
||
|
|
--normal /tmp/csic/OriginalDataSets/normalTrafficTraining.txt \
|
||
|
|
--normal /tmp/csic/OriginalDataSets/normalTrafficTest.txt \
|
||
|
|
--anomalous /tmp/csic/OriginalDataSets/anomalousTrafficTest.txt \
|
||
|
|
--hosts admin,src,docs,auth,drive,grafana,people,meet,s3,livekit \
|
||
|
|
--output csic_converted.jsonl
|
||
|
|
|
||
|
|
# Merge with production logs:
|
||
|
|
cat logs.jsonl csic_converted.jsonl > combined.jsonl
|
||
|
|
|
||
|
|
# Train:
|
||
|
|
cargo run -- train-scanner --input combined.jsonl --output scanner_model.bin
|
||
|
|
"""
|
||
|
|
|
||
|
|
import argparse
|
||
|
|
import json
|
||
|
|
import random
|
||
|
|
import sys
|
||
|
|
from datetime import datetime, timedelta
|
||
|
|
from urllib.parse import urlparse, unquote
|
||
|
|
|
||
|
|
|
||
|
|
def parse_csic_file(filepath):
|
||
|
|
"""Parse a CSIC 2010 raw HTTP file into individual requests."""
|
||
|
|
requests = []
|
||
|
|
current_lines = []
|
||
|
|
|
||
|
|
with open(filepath, "r", encoding="utf-8", errors="replace") as f:
|
||
|
|
for line in f:
|
||
|
|
stripped = line.rstrip("\r\n")
|
||
|
|
if stripped == "" and current_lines:
|
||
|
|
req = parse_single_request(current_lines)
|
||
|
|
if req:
|
||
|
|
requests.append(req)
|
||
|
|
current_lines = []
|
||
|
|
else:
|
||
|
|
current_lines.append(stripped)
|
||
|
|
|
||
|
|
# Handle last request if file doesn't end with blank line
|
||
|
|
if current_lines:
|
||
|
|
req = parse_single_request(current_lines)
|
||
|
|
if req:
|
||
|
|
requests.append(req)
|
||
|
|
|
||
|
|
return requests
|
||
|
|
|
||
|
|
|
||
|
|
def parse_single_request(lines):
|
||
|
|
"""Parse a single HTTP request from its lines into a dict of headers/fields."""
|
||
|
|
if not lines:
|
||
|
|
return None
|
||
|
|
|
||
|
|
# First line: METHOD url HTTP/1.1
|
||
|
|
request_line = lines[0]
|
||
|
|
parts = request_line.split(" ", 2)
|
||
|
|
if len(parts) < 2:
|
||
|
|
return None
|
||
|
|
|
||
|
|
method = parts[0]
|
||
|
|
raw_url = parts[1]
|
||
|
|
|
||
|
|
# Extract path from URL (may be absolute like http://localhost:8080/path)
|
||
|
|
parsed = urlparse(raw_url)
|
||
|
|
path = parsed.path or "/"
|
||
|
|
query = parsed.query or ""
|
||
|
|
|
||
|
|
# Parse headers
|
||
|
|
headers = {}
|
||
|
|
body_start = None
|
||
|
|
for i, line in enumerate(lines[1:], start=1):
|
||
|
|
if line == "":
|
||
|
|
body_start = i + 1
|
||
|
|
break
|
||
|
|
if ":" in line:
|
||
|
|
key, _, value = line.partition(":")
|
||
|
|
headers[key.strip().lower()] = value.strip()
|
||
|
|
|
||
|
|
# Extract body if present
|
||
|
|
body = ""
|
||
|
|
if body_start and body_start < len(lines):
|
||
|
|
body = "\n".join(lines[body_start:])
|
||
|
|
|
||
|
|
content_length = 0
|
||
|
|
if "content-length" in headers:
|
||
|
|
try:
|
||
|
|
content_length = int(headers["content-length"])
|
||
|
|
except ValueError:
|
||
|
|
content_length = len(body)
|
||
|
|
elif body:
|
||
|
|
content_length = len(body)
|
||
|
|
|
||
|
|
return {
|
||
|
|
"method": method,
|
||
|
|
"path": path,
|
||
|
|
"query": query,
|
||
|
|
"user_agent": headers.get("user-agent", "-"),
|
||
|
|
"has_cookies": "cookie" in headers,
|
||
|
|
"content_length": content_length,
|
||
|
|
"referer": headers.get("referer", "-"),
|
||
|
|
"accept_language": headers.get("accept-language", "-"),
|
||
|
|
"accept": headers.get("accept", "*/*"),
|
||
|
|
"host_header": headers.get("host", "localhost:8080"),
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
def to_audit_jsonl(req, label, configured_hosts, base_time, offset_secs):
|
||
|
|
"""Convert a parsed request into our audit log JSONL format."""
|
||
|
|
# Assign a host: normal traffic gets a configured host, attack gets random
|
||
|
|
if label == "normal":
|
||
|
|
host_prefix = random.choice(configured_hosts)
|
||
|
|
status = random.choice([200, 200, 200, 200, 301, 304])
|
||
|
|
else:
|
||
|
|
# 70% unknown host, 30% configured (attacks do hit real hosts)
|
||
|
|
if random.random() < 0.7:
|
||
|
|
host_prefix = random.choice([
|
||
|
|
"unknown", "scanner", "probe", "test",
|
||
|
|
"random-" + str(random.randint(1000, 9999)),
|
||
|
|
])
|
||
|
|
else:
|
||
|
|
host_prefix = random.choice(configured_hosts)
|
||
|
|
status = random.choice([404, 404, 404, 400, 403, 500])
|
||
|
|
|
||
|
|
host = f"{host_prefix}.sunbeam.pt"
|
||
|
|
|
||
|
|
# Synthesize a client IP
|
||
|
|
ip = f"{random.randint(1,223)}.{random.randint(0,255)}.{random.randint(0,255)}.{random.randint(1,254)}"
|
||
|
|
|
||
|
|
timestamp = (base_time + timedelta(seconds=offset_secs)).strftime(
|
||
|
|
"%Y-%m-%dT%H:%M:%S.%fZ"
|
||
|
|
)
|
||
|
|
|
||
|
|
referer = req["referer"]
|
||
|
|
accept_language = req["accept_language"]
|
||
|
|
|
||
|
|
# For anomalous samples, simulate realistic scanner behavior:
|
||
|
|
# scanners don't carry session cookies, referer, or accept-language.
|
||
|
|
# CSIC attacks all have these because they were generated from a user
|
||
|
|
# session — strip them to match what real scanners look like.
|
||
|
|
if label != "normal":
|
||
|
|
has_cookies = False
|
||
|
|
referer = "-"
|
||
|
|
# 80% drop accept-language (most scanners), 20% keep (sophisticated ones)
|
||
|
|
if random.random() < 0.8:
|
||
|
|
accept_language = "-"
|
||
|
|
# 40% use a scanner-like UA instead of the CSIC browser UA
|
||
|
|
r = random.random()
|
||
|
|
if r < 0.15:
|
||
|
|
user_agent = ""
|
||
|
|
elif r < 0.25:
|
||
|
|
user_agent = "curl/7.68.0"
|
||
|
|
elif r < 0.35:
|
||
|
|
user_agent = "python-requests/2.28.0"
|
||
|
|
elif r < 0.40:
|
||
|
|
user_agent = f"Go-http-client/1.1"
|
||
|
|
else:
|
||
|
|
user_agent = req["user_agent"]
|
||
|
|
else:
|
||
|
|
has_cookies = req["has_cookies"]
|
||
|
|
user_agent = req["user_agent"]
|
||
|
|
|
||
|
|
entry = {
|
||
|
|
"timestamp": timestamp,
|
||
|
|
"level": "INFO",
|
||
|
|
"fields": {
|
||
|
|
"message": "request",
|
||
|
|
"target": "audit",
|
||
|
|
"method": req["method"],
|
||
|
|
"host": host,
|
||
|
|
"path": req["path"],
|
||
|
|
"query": req.get("query", ""),
|
||
|
|
"client_ip": ip,
|
||
|
|
"status": status,
|
||
|
|
"duration_ms": random.randint(1, 50),
|
||
|
|
"content_length": req["content_length"],
|
||
|
|
"user_agent": user_agent,
|
||
|
|
"referer": referer,
|
||
|
|
"accept_language": accept_language,
|
||
|
|
"accept": req["accept"],
|
||
|
|
"has_cookies": has_cookies,
|
||
|
|
"cf_country": "-",
|
||
|
|
"backend": f"{host_prefix}-svc:8080" if label == "normal" else "-",
|
||
|
|
"label": "normal" if label == "normal" else "attack",
|
||
|
|
},
|
||
|
|
"target": "sunbeam_proxy::proxy",
|
||
|
|
}
|
||
|
|
|
||
|
|
return json.dumps(entry, ensure_ascii=False)
|
||
|
|
|
||
|
|
|
||
|
|
def main():
|
||
|
|
parser = argparse.ArgumentParser(
|
||
|
|
description="Convert CSIC 2010 dataset to Sunbeam audit-log JSONL"
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--normal",
|
||
|
|
action="append",
|
||
|
|
default=[],
|
||
|
|
help="Path to normal traffic file(s). Can be specified multiple times.",
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--anomalous",
|
||
|
|
action="append",
|
||
|
|
default=[],
|
||
|
|
help="Path to anomalous traffic file(s). Can be specified multiple times.",
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--hosts",
|
||
|
|
default="admin,src,docs,auth,drive,grafana,people,meet,s3,livekit",
|
||
|
|
help="Comma-separated list of configured host prefixes (default: sunbeam.pt subdomains)",
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--output",
|
||
|
|
default="-",
|
||
|
|
help="Output JSONL file (default: stdout)",
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--shuffle",
|
||
|
|
action="store_true",
|
||
|
|
default=True,
|
||
|
|
help="Shuffle output to interleave normal/attack (default: true)",
|
||
|
|
)
|
||
|
|
parser.add_argument(
|
||
|
|
"--seed",
|
||
|
|
type=int,
|
||
|
|
default=42,
|
||
|
|
help="Random seed for reproducibility (default: 42)",
|
||
|
|
)
|
||
|
|
args = parser.parse_args()
|
||
|
|
|
||
|
|
if not args.normal and not args.anomalous:
|
||
|
|
parser.error("provide at least one --normal or --anomalous file")
|
||
|
|
|
||
|
|
random.seed(args.seed)
|
||
|
|
configured_hosts = [h.strip() for h in args.hosts.split(",")]
|
||
|
|
base_time = datetime(2026, 3, 1, 0, 0, 0)
|
||
|
|
|
||
|
|
# Parse all files
|
||
|
|
labeled = []
|
||
|
|
|
||
|
|
for path in args.normal:
|
||
|
|
reqs = parse_csic_file(path)
|
||
|
|
print(f"parsed {len(reqs)} normal requests from {path}", file=sys.stderr)
|
||
|
|
for r in reqs:
|
||
|
|
labeled.append((r, "normal"))
|
||
|
|
|
||
|
|
for path in args.anomalous:
|
||
|
|
reqs = parse_csic_file(path)
|
||
|
|
print(f"parsed {len(reqs)} anomalous requests from {path}", file=sys.stderr)
|
||
|
|
for r in reqs:
|
||
|
|
labeled.append((r, "anomalous"))
|
||
|
|
|
||
|
|
if args.shuffle:
|
||
|
|
random.shuffle(labeled)
|
||
|
|
|
||
|
|
print(
|
||
|
|
f"total: {len(labeled)} requests "
|
||
|
|
f"({sum(1 for _, l in labeled if l == 'normal')} normal, "
|
||
|
|
f"{sum(1 for _, l in labeled if l == 'anomalous')} anomalous)",
|
||
|
|
file=sys.stderr,
|
||
|
|
)
|
||
|
|
|
||
|
|
# Write output
|
||
|
|
out = open(args.output, "w") if args.output != "-" else sys.stdout
|
||
|
|
try:
|
||
|
|
for i, (req, label) in enumerate(labeled):
|
||
|
|
line = to_audit_jsonl(req, label, configured_hosts, base_time, i)
|
||
|
|
out.write(line + "\n")
|
||
|
|
finally:
|
||
|
|
if out is not sys.stdout:
|
||
|
|
out.close()
|
||
|
|
|
||
|
|
if args.output != "-":
|
||
|
|
print(f"written to {args.output}", file=sys.stderr)
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
main()
|