mirror of
https://github.com/mandiant/capa.git
synced 2025-12-22 07:10:29 -08:00
3cd97ae9f2
Replace the header from source code files using the following script:
```Python
for dir_path, dir_names, file_names in os.walk("capa"):
for file_name in file_names:
# header are only in `.py` and `.toml` files
if file_name[-3:] not in (".py", "oml"):
continue
file_path = f"{dir_path}/{file_name}"
f = open(file_path, "rb+")
content = f.read()
m = re.search(OLD_HEADER, content)
if not m:
continue
print(f"{file_path}: {m.group('year')}")
content = content.replace(m.group(0), NEW_HEADER % m.group("year"))
f.seek(0)
f.write(content)
```
Some files had the copyright headers inside a `"""` comment and needed
manual changes before applying the script. `hook-vivisect.py` and
`pyinstaller.spec` didn't include the license in the header and also
needed manual changes.
The old header had the confusing sentence `All rights reserved`, which
does not make sense for an open source license. Replace the header by
the default Google header that corrects this issue and keep capa
consistent with other Google projects.
Adapt the linter to work with the new header.
Replace also the copyright text in the `web/public/index.html` file for
consistency.
119 lines
4.6 KiB
Python
119 lines
4.6 KiB
Python
#!/usr/bin/env python2
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# Copyright 2023 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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detect-binexport2-capabilities.py
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Detect capabilities in a BinExport2 file and write the results into the protobuf format.
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Example:
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$ python detect-binexport2-capabilities.py suspicious.BinExport2 | xxd | head
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┌────────┬─────────────────────────┬─────────────────────────┬────────┬────────┐
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│00000000│ 0a d4 05 0a 1a 32 30 32 ┊ 33 2d 30 32 2d 31 30 20 │_.•_•202┊3-02-10 │
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│00000010│ 31 31 3a 34 39 3a 35 32 ┊ 2e 36 39 33 34 30 30 12 │11:49:52┊.693400•│
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│00000020│ 05 35 2e 30 2e 30 1a 34 ┊ 74 65 73 74 73 2f 64 61 │•5.0.0•4┊tests/da│
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│00000030│ 74 61 2f 50 72 61 63 74 ┊ 69 63 61 6c 20 4d 61 6c │ta/Pract┊ical Mal│
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│00000040│ 77 61 72 65 20 41 6e 61 ┊ 6c 79 73 69 73 20 4c 61 │ware Ana┊lysis La│
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│00000050│ 62 20 30 31 2d 30 31 2e ┊ 64 6c 6c 5f 1a 02 2d 6a │b 01-01.┊dll_••-j│
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│00000060│ 22 c4 01 0a 20 32 39 30 ┊ 39 33 34 63 36 31 64 65 │".•_ 290┊934c61de│
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│00000070│ 39 31 37 36 61 64 36 38 ┊ 32 66 66 64 64 36 35 66 │9176ad68┊2ffdd65f│
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│00000080│ 30 61 36 36 39 12 28 61 ┊ 34 62 33 35 64 65 37 31 │0a669•(a┊4b35de71│
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"""
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import sys
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import logging
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import argparse
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import capa.main
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import capa.rules
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import capa.engine
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import capa.loader
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import capa.helpers
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import capa.features
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import capa.exceptions
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import capa.render.proto
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import capa.render.verbose
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import capa.features.freeze
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import capa.capabilities.common
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import capa.render.result_document as rd
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from capa.loader import FORMAT_BINEXPORT2, BACKEND_BINEXPORT2
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logger = logging.getLogger("capa.detect-binexport2-capabilities")
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def main(argv=None):
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if argv is None:
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argv = sys.argv[1:]
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parser = argparse.ArgumentParser(description="detect capabilities in programs.")
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capa.main.install_common_args(
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parser,
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wanted={"format", "os", "backend", "input_file", "signatures", "rules", "tag"},
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)
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args = parser.parse_args(args=argv)
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try:
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capa.main.handle_common_args(args)
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capa.main.ensure_input_exists_from_cli(args)
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input_format = capa.main.get_input_format_from_cli(args)
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assert input_format == FORMAT_BINEXPORT2
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backend = capa.main.get_backend_from_cli(args, input_format)
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assert backend == BACKEND_BINEXPORT2
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sample_path = capa.main.get_sample_path_from_cli(args, backend)
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assert sample_path is not None
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os_ = capa.loader.get_os(sample_path)
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rules = capa.main.get_rules_from_cli(args)
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extractor = capa.main.get_extractor_from_cli(args, input_format, backend)
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# alternatively, if you have all this handy in your library code:
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#
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# extractor = capa.loader.get_extractor(
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# args.input_file,
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# FORMAT_BINEXPORT2,
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# os_,
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# BACKEND_BINEXPORT2,
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# sig_paths=[],
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# sample_path=sample_path,
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# )
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#
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# or even more concisely:
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#
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# be2 = capa.features.extractors.binexport2.get_binexport2(input_path)
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# buf = sample_path.read_bytes()
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# extractor = capa.features.extractors.binexport2.extractor.BinExport2FeatureExtractor(be2, buf)
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except capa.main.ShouldExitError as e:
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return e.status_code
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capabilities, counts = capa.capabilities.common.find_capabilities(rules, extractor)
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meta = capa.loader.collect_metadata(argv, args.input_file, input_format, os_, args.rules, extractor, counts)
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meta.analysis.layout = capa.loader.compute_layout(rules, extractor, capabilities)
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doc = rd.ResultDocument.from_capa(meta, rules, capabilities)
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pb = capa.render.proto.doc_to_pb2(doc)
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sys.stdout.buffer.write(pb.SerializeToString(deterministic=True))
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sys.stdout.flush()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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