mirror of
https://github.com/mandiant/capa.git
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87 lines
3.4 KiB
Python
87 lines
3.4 KiB
Python
# Copyright 2020 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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import logging
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from pathlib import Path
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import pytest
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import fixtures
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import capa.features.extractors.ida.idalib
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from capa.features.file import FunctionName
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from capa.features.insn import API
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from capa.features.common import Characteristic
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logger = logging.getLogger(__name__)
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idalib_present = capa.features.extractors.ida.idalib.has_idalib()
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if idalib_present:
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try:
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import idapro # noqa: F401 [imported but unused]
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import ida_kernwin
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kernel_version: str = ida_kernwin.get_kernel_version()
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except ImportError:
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idalib_present = False
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kernel_version = "0.0"
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@pytest.mark.skipif(idalib_present is False, reason="Skip idalib tests if the idalib Python API is not installed")
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@fixtures.parametrize(
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"sample,scope,feature,expected",
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fixtures.FEATURE_PRESENCE_TESTS + fixtures.FEATURE_SYMTAB_FUNC_TESTS,
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indirect=["sample", "scope"],
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)
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def test_idalib_features(sample: Path, scope, feature, expected):
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if kernel_version in {"9.0", "9.1"} and sample.name.startswith("2bf18d"):
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if isinstance(feature, (API, FunctionName)) and feature.value == "__libc_connect":
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# see discussion here: https://github.com/mandiant/capa/pull/2742#issuecomment-3674146335
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#
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# > i confirmed that there were changes in 9.2 related to the ELF loader handling names,
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# > so I think its reasonable to conclude that 9.1 and older had a bug that
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# > prevented this name from surfacing.
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pytest.xfail(f"IDA {kernel_version} does not extract all ELF symbols")
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if kernel_version in {"9.0"} and sample.name.startswith("Practical Malware Analysis Lab 12-04.exe_"):
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if isinstance(feature, Characteristic) and feature.value == "embedded pe":
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# see discussion here: https://github.com/mandiant/capa/pull/2742#issuecomment-3667086165
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#
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# idalib for IDA 9.0 doesn't support argv arguments, so we can't ask that resources are loaded
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pytest.xfail("idalib 9.0 does not support loading resource segments")
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try:
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fixtures.do_test_feature_presence(fixtures.get_idalib_extractor, sample, scope, feature, expected)
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finally:
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logger.debug("closing database...")
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import idapro
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idapro.close_database(save=False)
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logger.debug("closed database.")
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@pytest.mark.skipif(idalib_present is False, reason="Skip idalib tests if the idalib Python API is not installed")
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@fixtures.parametrize(
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"sample,scope,feature,expected",
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fixtures.FEATURE_COUNT_TESTS,
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indirect=["sample", "scope"],
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)
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def test_idalib_feature_counts(sample, scope, feature, expected):
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try:
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fixtures.do_test_feature_count(fixtures.get_idalib_extractor, sample, scope, feature, expected)
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finally:
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logger.debug("closing database...")
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import idapro
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idapro.close_database(save=False)
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logger.debug("closed database.")
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