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0eb4291b25
* updating copyright, back to the date of origin of file * updating regex to account for linter violation
67 lines
2.5 KiB
Python
67 lines
2.5 KiB
Python
# Copyright (C) 2020 Mandiant, Inc. All Rights Reserved.
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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: [package root]/LICENSE.txt
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# Unless required by applicable law or agreed to in writing, software distributed under the License
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# is distributed on an "AS IS" BASIS, 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 limitations under the License.
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import codecs
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from capa.features.extractors import helpers
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def test_all_zeros():
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a = b"\x00\x00\x00\x00"
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b = codecs.decode(b"00000000", "hex")
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c = b"\x01\x00\x00\x00"
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d = codecs.decode(b"01000000", "hex")
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assert helpers.all_zeros(a) is True
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assert helpers.all_zeros(b) is True
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assert helpers.all_zeros(c) is False
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assert helpers.all_zeros(d) is False
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def test_generate_symbols():
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assert list(helpers.generate_symbols("name.dll", "api", include_dll=True)) == list(
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helpers.generate_symbols("name", "api", include_dll=True)
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)
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assert list(helpers.generate_symbols("name.dll", "api", include_dll=False)) == list(
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helpers.generate_symbols("name", "api", include_dll=False)
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)
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# A/W import
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symbols = list(helpers.generate_symbols("kernel32", "CreateFileA", include_dll=True))
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assert len(symbols) == 4
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assert "kernel32.CreateFileA" in symbols
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assert "kernel32.CreateFile" in symbols
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assert "CreateFileA" in symbols
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assert "CreateFile" in symbols
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# import
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symbols = list(helpers.generate_symbols("kernel32", "WriteFile", include_dll=True))
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assert len(symbols) == 2
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assert "kernel32.WriteFile" in symbols
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assert "WriteFile" in symbols
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# ordinal import
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symbols = list(helpers.generate_symbols("ws2_32", "#1", include_dll=True))
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assert len(symbols) == 1
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assert "ws2_32.#1" in symbols
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# A/W api
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symbols = list(helpers.generate_symbols("kernel32", "CreateFileA", include_dll=False))
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assert len(symbols) == 2
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assert "CreateFileA" in symbols
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assert "CreateFile" in symbols
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# api
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symbols = list(helpers.generate_symbols("kernel32", "WriteFile", include_dll=False))
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assert len(symbols) == 1
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assert "WriteFile" in symbols
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# ordinal api
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symbols = list(helpers.generate_symbols("ws2_32", "#1", include_dll=False))
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assert len(symbols) == 1
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assert "ws2_32.#1" in symbols
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