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Direktori : /opt/imunify360/venv/lib64/python3.11/site-packages/imav/malwarelib/scan/ai_bolit/ |
Current File : //opt/imunify360/venv/lib64/python3.11/site-packages/imav/malwarelib/scan/ai_bolit/report.py |
""" This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. Copyright © 2019 Cloud Linux Software Inc. This software is also available under ImunifyAV commercial license, see <https://www.imunify360.com/legal/eula> """ import base64 import binascii import csv import os from collections import namedtuple from contextlib import suppress from pathlib import Path from time import time from . import AIBOLIT ( SUSPICIOUS, VULNERS, EXTENDED_SUSPICIOUS, IGNORED_SUSPICIOUS, ) = ( "suspicious", "vulners", "extended-suspicious", "ignored-suspicious", ) SECTIONS = { "p": "php_malware", "j": "js_malware", "c": "cloudhash", "s": SUSPICIOUS, "v": VULNERS, "es": EXTENDED_SUSPICIOUS, "is": IGNORED_SUSPICIOUS, } SUSPICIOUS_SECTIONS = { SUSPICIOUS, VULNERS, EXTENDED_SUSPICIOUS, IGNORED_SUSPICIOUS, } AiBolitCSVReport = namedtuple( "AiBolitCSVReport", [ "section", "path", "signature", "ctime", "mtime", "size", "etime", "signature_id", "hash", "signature_name", "sha256", ], ) def parse_report_csv(report_path: Path): with report_path.open(newline="") as report_stream: for raw_row in csv.reader(report_stream, delimiter=","): row = AiBolitCSVReport(*raw_row) try: section = SECTIONS[row.section] except KeyError: continue sig = row.signature_name or "{}.{}".format( section, row.signature_id ) timestamp = ( int(float(row.etime)) if row.section != "v" else int(time()) ) file_name = row.path with suppress(binascii.Error): file_name = base64.b64decode(file_name, validate=True) file_name = os.fsdecode(file_name) yield { "name": AIBOLIT, "file_name": file_name, "signature": sig, "ctime": int(row.ctime), "modification_time": int(row.mtime), "suspicious": section in SUSPICIOUS_SECTIONS, "size": int(row.size or 0), "hash": row.sha256 or row.hash or None, "timestamp": timestamp, "extended_suspicious": section == EXTENDED_SUSPICIOUS, } def parse_report_json(report, base64_path=True): for section in SECTIONS.values(): for hit in report.get(section, []): sig = hit.get("sn") or ".".join([section, str(hit["sigid"])]) # vulners section does not provide timestamp ('et' field) # so current time is used instead. # 'et' - time when the file was scanned timestamp = ( int(float(hit["et"])) if section != "vulners" else int(time()) ) file_name = hit["fn"] if base64_path: with suppress(binascii.Error): file_name = base64.b64decode(file_name, validate=True) file_name = os.fsdecode(file_name) yield { "name": AIBOLIT, "file_name": file_name, "signature": sig, "suspicious": section in SUSPICIOUS_SECTIONS, "size": hit["sz"], "ctime": hit["ct"], "modification_time": hit["mt"], # 'hash' field is still used in 'cloudhash' section "hash": hit.get("sha256", hit.get("hash")), "timestamp": timestamp, "extended_suspicious": section == EXTENDED_SUSPICIOUS, }