655 lines
24 KiB
Python
655 lines
24 KiB
Python
import datetime
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import pytest
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from stix2patterns.exceptions import ParseException
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import stix2
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from stix2.pattern_visitor import create_pattern_object
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def test_create_comparison_expression():
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exp = stix2.EqualityComparisonExpression(
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"file:hashes.'SHA-256'",
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stix2.HashConstant("aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f", "SHA-256"),
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) # noqa
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assert str(exp) == "file:hashes.'SHA-256' = 'aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f'"
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def test_boolean_expression():
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exp1 = stix2.MatchesComparisonExpression(
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"email-message:from_ref.value",
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stix2.StringConstant(".+\\@example\\.com$"),
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)
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exp2 = stix2.MatchesComparisonExpression(
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"email-message:body_multipart[*].body_raw_ref.name",
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stix2.StringConstant("^Final Report.+\\.exe$"),
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)
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exp = stix2.AndBooleanExpression([exp1, exp2])
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assert str(exp) == "email-message:from_ref.value MATCHES '.+\\\\@example\\\\.com$' AND email-message:body_multipart[*].body_raw_ref.name MATCHES '^Final Report.+\\\\.exe$'" # noqa
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def test_boolean_expression_with_parentheses():
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exp1 = stix2.MatchesComparisonExpression(
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stix2.ObjectPath(
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"email-message",
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[
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stix2.ReferenceObjectPathComponent("from_ref"),
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stix2.BasicObjectPathComponent("value", False),
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],
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),
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stix2.StringConstant(".+\\@example\\.com$"),
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)
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exp2 = stix2.MatchesComparisonExpression(
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"email-message:body_multipart[*].body_raw_ref.name",
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stix2.StringConstant("^Final Report.+\\.exe$"),
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)
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exp = stix2.ParentheticalExpression(stix2.AndBooleanExpression([exp1, exp2]))
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assert str(exp) == "(email-message:from_ref.value MATCHES '.+\\\\@example\\\\.com$' AND email-message:body_multipart[*].body_raw_ref.name MATCHES '^Final Report.+\\\\.exe$')" # noqa
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def test_hash_followed_by_registryKey_expression_python_constant():
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hash_exp = stix2.EqualityComparisonExpression(
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"file:hashes.MD5",
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stix2.HashConstant("79054025255fb1a26e4bc422aef54eb4", "MD5"),
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)
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o_exp1 = stix2.ObservationExpression(hash_exp)
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reg_exp = stix2.EqualityComparisonExpression(
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stix2.ObjectPath("windows-registry-key", ["key"]),
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stix2.StringConstant("HKEY_LOCAL_MACHINE\\foo\\bar"),
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)
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o_exp2 = stix2.ObservationExpression(reg_exp)
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fb_exp = stix2.FollowedByObservationExpression([o_exp1, o_exp2])
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para_exp = stix2.ParentheticalExpression(fb_exp)
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qual_exp = stix2.WithinQualifier(300)
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exp = stix2.QualifiedObservationExpression(para_exp, qual_exp)
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assert str(exp) == "([file:hashes.MD5 = '79054025255fb1a26e4bc422aef54eb4'] FOLLOWEDBY [windows-registry-key:key = 'HKEY_LOCAL_MACHINE\\\\foo\\\\bar']) WITHIN 300 SECONDS" # noqa
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def test_hash_followed_by_registryKey_expression():
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hash_exp = stix2.EqualityComparisonExpression(
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"file:hashes.MD5",
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stix2.HashConstant("79054025255fb1a26e4bc422aef54eb4", "MD5"),
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)
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o_exp1 = stix2.ObservationExpression(hash_exp)
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reg_exp = stix2.EqualityComparisonExpression(
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stix2.ObjectPath("windows-registry-key", ["key"]),
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stix2.StringConstant("HKEY_LOCAL_MACHINE\\foo\\bar"),
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)
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o_exp2 = stix2.ObservationExpression(reg_exp)
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fb_exp = stix2.FollowedByObservationExpression([o_exp1, o_exp2])
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para_exp = stix2.ParentheticalExpression(fb_exp)
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qual_exp = stix2.WithinQualifier(stix2.IntegerConstant(300))
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exp = stix2.QualifiedObservationExpression(para_exp, qual_exp)
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assert str(exp) == "([file:hashes.MD5 = '79054025255fb1a26e4bc422aef54eb4'] FOLLOWEDBY [windows-registry-key:key = 'HKEY_LOCAL_MACHINE\\\\foo\\\\bar']) WITHIN 300 SECONDS" # noqa
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def test_file_observable_expression():
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exp1 = stix2.EqualityComparisonExpression(
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"file:hashes.'SHA-256'",
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stix2.HashConstant(
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"aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f",
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'SHA-256',
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),
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)
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exp2 = stix2.EqualityComparisonExpression("file:mime_type", stix2.StringConstant("application/x-pdf"))
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bool_exp = stix2.ObservationExpression(stix2.AndBooleanExpression([exp1, exp2]))
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assert str(bool_exp) == "[file:hashes.'SHA-256' = 'aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f' AND file:mime_type = 'application/x-pdf']" # noqa
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@pytest.mark.parametrize(
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"observation_class, op", [
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(stix2.AndObservationExpression, 'AND'),
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(stix2.OrObservationExpression, 'OR'),
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],
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)
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def test_multiple_file_observable_expression(observation_class, op):
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exp1 = stix2.EqualityComparisonExpression(
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"file:hashes.'SHA-256'",
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stix2.HashConstant(
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"bf07a7fbb825fc0aae7bf4a1177b2b31fcf8a3feeaf7092761e18c859ee52a9c",
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'SHA-256',
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),
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)
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exp2 = stix2.EqualityComparisonExpression(
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"file:hashes.MD5",
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stix2.HashConstant("cead3f77f6cda6ec00f57d76c9a6879f", "MD5"),
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)
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bool1_exp = stix2.OrBooleanExpression([exp1, exp2])
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exp3 = stix2.EqualityComparisonExpression(
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"file:hashes.'SHA-256'",
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stix2.HashConstant(
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"aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f",
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'SHA-256',
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),
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)
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op1_exp = stix2.ObservationExpression(bool1_exp)
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op2_exp = stix2.ObservationExpression(exp3)
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exp = observation_class([op1_exp, op2_exp])
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assert str(exp) == "[file:hashes.'SHA-256' = 'bf07a7fbb825fc0aae7bf4a1177b2b31fcf8a3feeaf7092761e18c859ee52a9c' OR file:hashes.MD5 = 'cead3f77f6cda6ec00f57d76c9a6879f'] {} [file:hashes.'SHA-256' = 'aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f']".format(op) # noqa
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def test_root_types():
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ast = stix2.ObservationExpression(
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stix2.AndBooleanExpression(
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[
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stix2.ParentheticalExpression(
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stix2.OrBooleanExpression([
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stix2.EqualityComparisonExpression("a:b", stix2.StringConstant("1")),
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stix2.EqualityComparisonExpression("b:c", stix2.StringConstant("2")),
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]),
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),
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stix2.EqualityComparisonExpression(u"b:d", stix2.StringConstant("3")),
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],
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),
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)
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assert str(ast) == "[(a:b = '1' OR b:c = '2') AND b:d = '3']"
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def test_artifact_payload():
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exp1 = stix2.EqualityComparisonExpression(
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"artifact:mime_type",
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"application/vnd.tcpdump.pcap",
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)
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exp2 = stix2.MatchesComparisonExpression(
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"artifact:payload_bin",
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stix2.StringConstant("\\xd4\\xc3\\xb2\\xa1\\x02\\x00\\x04\\x00"),
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)
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and_exp = stix2.ObservationExpression(stix2.AndBooleanExpression([exp1, exp2]))
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assert str(and_exp) == "[artifact:mime_type = 'application/vnd.tcpdump.pcap' AND artifact:payload_bin MATCHES '\\\\xd4\\\\xc3\\\\xb2\\\\xa1\\\\x02\\\\x00\\\\x04\\\\x00']" # noqa
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def test_greater_than_python_constant():
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exp1 = stix2.GreaterThanComparisonExpression("file:extensions.'windows-pebinary-ext'.sections[*].entropy", 7.0)
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exp = stix2.ObservationExpression(exp1)
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assert str(exp) == "[file:extensions.'windows-pebinary-ext'.sections[*].entropy > 7.0]"
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def test_greater_than():
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exp1 = stix2.GreaterThanComparisonExpression(
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"file:extensions.'windows-pebinary-ext'.sections[*].entropy",
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stix2.FloatConstant(7.0),
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)
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exp = stix2.ObservationExpression(exp1)
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assert str(exp) == "[file:extensions.'windows-pebinary-ext'.sections[*].entropy > 7.0]"
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def test_parsing_greater_than():
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patt_obj = create_pattern_object("[file:extensions.'windows-pebinary-ext'.sections[*].entropy > 7.478901]", version="2.1")
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assert str(patt_obj) == "[file:extensions.'windows-pebinary-ext'.sections[*].entropy > 7.478901]"
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def test_less_than():
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exp = stix2.LessThanComparisonExpression("file:size", 1024)
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assert str(exp) == "file:size < 1024"
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def test_parsing_less_than():
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patt_obj = create_pattern_object("[file:size < 1024]", version="2.1")
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assert str(patt_obj) == "[file:size < 1024]"
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def test_greater_than_or_equal():
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exp = stix2.GreaterThanEqualComparisonExpression(
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"file:size",
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1024,
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)
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assert str(exp) == "file:size >= 1024"
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def test_parsing_greater_than_or_equal():
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patt_obj = create_pattern_object("[file:size >= 1024]", version="2.1")
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assert str(patt_obj) == "[file:size >= 1024]"
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def test_less_than_or_equal():
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exp = stix2.LessThanEqualComparisonExpression(
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"file:size",
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1024,
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)
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assert str(exp) == "file:size <= 1024"
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def test_parsing_less_than_or_equal():
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patt_obj = create_pattern_object("[file:size <= 1024]", version="2.1")
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assert str(patt_obj) == "[file:size <= 1024]"
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def test_parsing_issubset():
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patt_obj = create_pattern_object("[network-traffic:dst_ref.value ISSUBSET '2001:0db8:dead:beef:0000:0000:0000:0000/64']", version="2.1")
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assert str(patt_obj) == "[network-traffic:dst_ref.value ISSUBSET '2001:0db8:dead:beef:0000:0000:0000:0000/64']"
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def test_parsing_issuperset():
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patt_obj = create_pattern_object("[network-traffic:dst_ref.value ISSUPERSET '2001:0db8:dead:beef:0000:0000:0000:0000/64']", version="2.1")
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assert str(patt_obj) == "[network-traffic:dst_ref.value ISSUPERSET '2001:0db8:dead:beef:0000:0000:0000:0000/64']"
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def test_parsing_like():
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patt_obj = create_pattern_object("[directory:path LIKE 'C:\\\\Windows\\\\%\\\\foo']", version="2.1")
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assert str(patt_obj) == "[directory:path LIKE 'C:\\\\Windows\\\\%\\\\foo']"
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def test_parsing_match():
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patt_obj = create_pattern_object("[process:command_line MATCHES '^.+>-add GlobalSign.cer -c -s -r localMachine Root$'] FOLLOWEDBY [process:command_line MATCHES '^.+>-add GlobalSign.cer -c -s -r localMachineTrustedPublisher$'] WITHIN 300 SECONDS", version="2.1") # noqa
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assert str(patt_obj) == "[process:command_line MATCHES '^.+>-add GlobalSign.cer -c -s -r localMachine Root$'] FOLLOWEDBY [process:command_line MATCHES '^.+>-add GlobalSign.cer -c -s -r localMachineTrustedPublisher$'] WITHIN 300 SECONDS" # noqa
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def test_parsing_followed_by():
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patt_obj = create_pattern_object("([file:hashes.MD5 = '79054025255fb1a26e4bc422aef54eb4'] FOLLOWEDBY [windows-registry-key:key = 'HKEY_LOCAL_MACHINE\\\\foo\\\\bar']) WITHIN 300 SECONDS", version="2.1") # noqa
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assert str(patt_obj) == "([file:hashes.MD5 = '79054025255fb1a26e4bc422aef54eb4'] FOLLOWEDBY [windows-registry-key:key = 'HKEY_LOCAL_MACHINE\\\\foo\\\\bar']) WITHIN 300 SECONDS" # noqa
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def test_not():
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exp = stix2.LessThanComparisonExpression(
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"file:size",
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1024,
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negated=True,
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)
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assert str(exp) == "file:size NOT < 1024"
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def test_and_observable_expression():
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exp1 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1007"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Peter",
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),
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])
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exp2 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1008"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Paul",
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),
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])
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exp3 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1009"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Mary",
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),
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])
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exp = stix2.AndObservationExpression([
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stix2.ObservationExpression(exp1),
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stix2.ObservationExpression(exp2),
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stix2.ObservationExpression(exp3),
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])
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assert str(exp) == "[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] AND [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul'] AND [user-account:account_type = 'unix' AND user-account:user_id = '1009' AND user-account:account_login = 'Mary']" # noqa
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def test_parsing_and_observable_expression():
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exp = create_pattern_object("[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] AND [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul']", version="2.1") # noqa
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assert str(exp) == "[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] AND [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul']" # noqa
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def test_or_observable_expression():
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exp1 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1007"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Peter",
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),
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])
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exp2 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1008"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Paul",
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),
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])
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exp3 = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:account_type",
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"unix",
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),
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stix2.EqualityComparisonExpression(
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"user-account:user_id",
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stix2.StringConstant("1009"),
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),
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stix2.EqualityComparisonExpression(
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"user-account:account_login",
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"Mary",
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),
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])
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exp = stix2.OrObservationExpression([
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stix2.ObservationExpression(exp1),
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stix2.ObservationExpression(exp2),
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stix2.ObservationExpression(exp3),
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])
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assert str(exp) == "[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] OR [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul'] OR [user-account:account_type = 'unix' AND user-account:user_id = '1009' AND user-account:account_login = 'Mary']" # noqa
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def test_parsing_or_observable_expression():
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exp = create_pattern_object("[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] OR [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul']", version="2.1") # noqa
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assert str(exp) == "[user-account:account_type = 'unix' AND user-account:user_id = '1007' AND user-account:account_login = 'Peter'] OR [user-account:account_type = 'unix' AND user-account:user_id = '1008' AND user-account:account_login = 'Paul']" # noqa
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def test_invalid_and_observable_expression():
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with pytest.raises(ValueError):
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stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"user-account:display_name",
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"admin",
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),
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stix2.EqualityComparisonExpression(
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"email-addr:display_name",
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stix2.StringConstant("admin"),
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),
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])
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def test_hex():
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exp_and = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"file:mime_type",
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"image/bmp",
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),
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stix2.EqualityComparisonExpression(
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"file:magic_number_hex",
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stix2.HexConstant("ffd8"),
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),
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])
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exp = stix2.ObservationExpression(exp_and)
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assert str(exp) == "[file:mime_type = 'image/bmp' AND file:magic_number_hex = h'ffd8']"
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def test_parsing_hex():
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patt_obj = create_pattern_object("[file:magic_number_hex = h'ffd8']", version="2.1")
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assert str(patt_obj) == "[file:magic_number_hex = h'ffd8']"
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def test_multiple_qualifiers():
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exp_and = stix2.AndBooleanExpression([
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stix2.EqualityComparisonExpression(
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"network-traffic:dst_ref.type",
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"domain-name",
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),
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stix2.EqualityComparisonExpression(
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"network-traffic:dst_ref.value",
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"example.com",
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),
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])
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exp_ob = stix2.ObservationExpression(exp_and)
|
|
qual_rep = stix2.RepeatQualifier(5)
|
|
qual_within = stix2.WithinQualifier(stix2.IntegerConstant(1800))
|
|
exp = stix2.QualifiedObservationExpression(stix2.QualifiedObservationExpression(exp_ob, qual_rep), qual_within)
|
|
assert str(exp) == "[network-traffic:dst_ref.type = 'domain-name' AND network-traffic:dst_ref.value = 'example.com'] REPEATS 5 TIMES WITHIN 1800 SECONDS" # noqa
|
|
|
|
|
|
def test_set_op():
|
|
exp = stix2.ObservationExpression(stix2.IsSubsetComparisonExpression(
|
|
"network-traffic:dst_ref.value",
|
|
"2001:0db8:dead:beef:0000:0000:0000:0000/64",
|
|
))
|
|
assert str(exp) == "[network-traffic:dst_ref.value ISSUBSET '2001:0db8:dead:beef:0000:0000:0000:0000/64']"
|
|
|
|
|
|
def test_timestamp():
|
|
ts = stix2.TimestampConstant('2014-01-13T07:03:17Z')
|
|
assert str(ts) == "t'2014-01-13T07:03:17Z'"
|
|
|
|
|
|
def test_boolean():
|
|
exp = stix2.EqualityComparisonExpression(
|
|
"email-message:is_multipart",
|
|
True,
|
|
)
|
|
assert str(exp) == "email-message:is_multipart = true"
|
|
|
|
|
|
def test_binary():
|
|
const = stix2.BinaryConstant("dGhpcyBpcyBhIHRlc3Q=")
|
|
exp = stix2.EqualityComparisonExpression(
|
|
"artifact:payload_bin",
|
|
const,
|
|
)
|
|
assert str(exp) == "artifact:payload_bin = b'dGhpcyBpcyBhIHRlc3Q='"
|
|
|
|
|
|
def test_parsing_binary():
|
|
patt_obj = create_pattern_object("[artifact:payload_bin = b'dGhpcyBpcyBhIHRlc3Q=']", version="2.1")
|
|
assert str(patt_obj) == "[artifact:payload_bin = b'dGhpcyBpcyBhIHRlc3Q=']"
|
|
|
|
|
|
def test_list():
|
|
exp = stix2.InComparisonExpression(
|
|
"process:name",
|
|
['proccy', 'proximus', 'badproc'],
|
|
)
|
|
assert str(exp) == "process:name IN ('proccy', 'proximus', 'badproc')"
|
|
|
|
|
|
def test_list2():
|
|
# alternate way to construct an "IN" Comparison Expression
|
|
exp = stix2.EqualityComparisonExpression(
|
|
"process:name",
|
|
['proccy', 'proximus', 'badproc'],
|
|
)
|
|
assert str(exp) == "process:name IN ('proccy', 'proximus', 'badproc')"
|
|
|
|
|
|
def test_invalid_constant_type():
|
|
with pytest.raises(ValueError):
|
|
stix2.EqualityComparisonExpression(
|
|
"artifact:payload_bin",
|
|
{'foo': 'bar'},
|
|
)
|
|
|
|
|
|
def test_invalid_integer_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.IntegerConstant('foo')
|
|
|
|
|
|
def test_invalid_timestamp_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.TimestampConstant('foo')
|
|
|
|
|
|
def test_invalid_float_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.FloatConstant('foo')
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"data, result", [
|
|
(True, True),
|
|
(False, False),
|
|
('True', True),
|
|
('False', False),
|
|
('true', True),
|
|
('false', False),
|
|
('t', True),
|
|
('f', False),
|
|
('T', True),
|
|
('F', False),
|
|
(1, True),
|
|
(0, False),
|
|
],
|
|
)
|
|
def test_boolean_constant(data, result):
|
|
boolean = stix2.BooleanConstant(data)
|
|
assert boolean.value == result
|
|
|
|
|
|
def test_invalid_boolean_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.BooleanConstant('foo')
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"hashtype, data", [
|
|
('MD5', 'zzz'),
|
|
('SSDEEP', 'zzz=='),
|
|
],
|
|
)
|
|
def test_invalid_hash_constant(hashtype, data):
|
|
with pytest.raises(ValueError):
|
|
stix2.HashConstant(data, hashtype)
|
|
|
|
|
|
def test_invalid_hex_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.HexConstant('mm')
|
|
|
|
|
|
def test_invalid_binary_constant():
|
|
with pytest.raises(ValueError):
|
|
stix2.BinaryConstant('foo')
|
|
|
|
|
|
def test_escape_quotes_and_backslashes():
|
|
exp = stix2.MatchesComparisonExpression(
|
|
"file:name",
|
|
"^Final Report.+\\.exe$",
|
|
)
|
|
assert str(exp) == "file:name MATCHES '^Final Report.+\\\\.exe$'"
|
|
|
|
|
|
def test_like():
|
|
exp = stix2.LikeComparisonExpression(
|
|
"directory:path",
|
|
"C:\\Windows\\%\\foo",
|
|
)
|
|
assert str(exp) == "directory:path LIKE 'C:\\\\Windows\\\\%\\\\foo'"
|
|
|
|
|
|
def test_issuperset():
|
|
exp = stix2.IsSupersetComparisonExpression(
|
|
"ipv4-addr:value",
|
|
"198.51.100.0/24",
|
|
)
|
|
assert str(exp) == "ipv4-addr:value ISSUPERSET '198.51.100.0/24'"
|
|
|
|
|
|
def test_repeat_qualifier():
|
|
qual = stix2.RepeatQualifier(stix2.IntegerConstant(5))
|
|
assert str(qual) == 'REPEATS 5 TIMES'
|
|
|
|
|
|
def test_invalid_repeat_qualifier():
|
|
with pytest.raises(ValueError):
|
|
stix2.RepeatQualifier('foo')
|
|
|
|
|
|
def test_invalid_within_qualifier():
|
|
with pytest.raises(ValueError):
|
|
stix2.WithinQualifier('foo')
|
|
|
|
|
|
def test_startstop_qualifier():
|
|
qual = stix2.StartStopQualifier(
|
|
stix2.TimestampConstant('2016-06-01T00:00:00Z'),
|
|
datetime.datetime(2017, 3, 12, 8, 30, 0),
|
|
)
|
|
assert str(qual) == "START t'2016-06-01T00:00:00Z' STOP t'2017-03-12T08:30:00Z'"
|
|
|
|
qual2 = stix2.StartStopQualifier(
|
|
datetime.date(2016, 6, 1),
|
|
stix2.TimestampConstant('2016-07-01T00:00:00Z'),
|
|
)
|
|
assert str(qual2) == "START t'2016-06-01T00:00:00Z' STOP t'2016-07-01T00:00:00Z'"
|
|
|
|
|
|
def test_invalid_startstop_qualifier():
|
|
with pytest.raises(ValueError):
|
|
stix2.StartStopQualifier(
|
|
'foo',
|
|
stix2.TimestampConstant('2016-06-01T00:00:00Z'),
|
|
)
|
|
|
|
with pytest.raises(ValueError):
|
|
stix2.StartStopQualifier(
|
|
datetime.date(2016, 6, 1),
|
|
'foo',
|
|
)
|
|
|
|
|
|
def test_make_constant_already_a_constant():
|
|
str_const = stix2.StringConstant('Foo')
|
|
result = stix2.patterns.make_constant(str_const)
|
|
assert result is str_const
|
|
|
|
|
|
def test_parsing_comparison_expression():
|
|
patt_obj = create_pattern_object("[file:hashes.'SHA-256' = 'aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f']", version="2.1")
|
|
assert str(patt_obj) == "[file:hashes.'SHA-256' = 'aec070645fe53ee3b3763059376134f058cc337247c978add178b6ccdfb0019f']"
|
|
|
|
|
|
def test_parsing_repeat_and_within_qualified_expression():
|
|
patt_obj = create_pattern_object(
|
|
"[network-traffic:dst_ref.type = 'domain-name' AND network-traffic:dst_ref.value = 'example.com'] REPEATS 5 TIMES WITHIN 1800 SECONDS",
|
|
version="2.1",
|
|
)
|
|
assert str(
|
|
patt_obj,
|
|
) == "[network-traffic:dst_ref.type = 'domain-name' AND network-traffic:dst_ref.value = 'example.com'] REPEATS 5 TIMES WITHIN 1800 SECONDS"
|
|
|
|
|
|
def test_parsing_start_stop_qualified_expression():
|
|
patt_obj = create_pattern_object(
|
|
"[network-traffic:dst_ref.type = 'domain-name' AND network-traffic:dst_ref.value = 'example.com'] START t'2016-06-01T00:00:00Z' STOP t'2017-03-12T08:30:00Z'", # noqa
|
|
version="2.1",
|
|
)
|
|
assert str(
|
|
patt_obj,
|
|
) == "[network-traffic:dst_ref.type = 'domain-name' AND network-traffic:dst_ref.value = 'example.com'] START t'2016-06-01T00:00:00Z' STOP t'2017-03-12T08:30:00Z'" # noqa
|
|
|
|
|
|
def test_list_constant():
|
|
patt_obj = create_pattern_object("[network-traffic:src_ref.value IN ('10.0.0.0', '10.0.0.1', '10.0.0.2')]", version="2.1")
|
|
assert str(patt_obj) == "[network-traffic:src_ref.value IN ('10.0.0.0', '10.0.0.1', '10.0.0.2')]"
|
|
|
|
|
|
def test_parsing_boolean():
|
|
patt_obj = create_pattern_object("[network-traffic:is_active = true]", version="2.1")
|
|
assert str(patt_obj) == "[network-traffic:is_active = true]"
|
|
|
|
|
|
def test_parsing_multiple_slashes_quotes():
|
|
patt_obj = create_pattern_object("[ file:name = 'weird_name\\'' ]", version="2.1")
|
|
assert str(patt_obj) == "[file:name = 'weird_name\\'']"
|
|
|
|
|
|
def test_parse_error():
|
|
with pytest.raises(ParseException):
|
|
create_pattern_object("[ file: name = 'weirdname]", version="2.1")
|