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cape2yara.py: update for use of scopes, and fix bug

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This commit is contained in:
Yacine Elhamer
2023-08-24 14:32:49 +02:00
parent 7c101f01e5
commit 9eb1255b29
2 changed files with 13 additions and 19 deletions
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9
scripts/capa2yara.py
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@@ -566,7 +566,7 @@ def convert_rules(rules, namespaces, cround, make_priv):
logger.info("skipping already converted rule capa: %s - yara rule: %s", rule.name, rule_name)
continue
logger.info("-------------------------- DOING RULE CAPA: %s - yara rule: ", rule.name, rule_name)
logger.info("-------------------------- DOING RULE CAPA: %s - yara rule: %s", rule.name, rule_name)
if "capa/path" in rule.meta:
url = get_rule_url(rule.meta["capa/path"])
else:
@@ -603,7 +603,12 @@ def convert_rules(rules, namespaces, cround, make_priv):
meta_name = meta
# e.g. 'examples:' can be a list
seen_hashes = []
if isinstance(metas[meta], list):
if isinstance(metas[meta], dict):
if meta_name == "scopes":
yara_meta += "\t" + "static scope" + ' = "' + metas[meta]["static"] + '"\n'
yara_meta += "\t" + "dynamic scope" + ' = "' + metas[meta]["dynamic"] + '"\n'
elif isinstance(metas[meta], list):
if meta_name == "examples":
meta_name = "hash"
if meta_name == "att&ck":

23
tests/test_scripts.py
View File

@@ -38,25 +38,15 @@ def get_rule_path():
@pytest.mark.parametrize(
"script,args",
[
pytest.param("capa2yara.py", [get_rules_path()], marks=pytest.mark.xfail(reason="relies on legacy ruleset")),
pytest.param(
"capafmt.py", [get_rule_path()], marks=pytest.mark.xfail(reason="rendering hasn't been added yet")
),
pytest.param("capa2yara.py", [get_rules_path()]),
pytest.param("capafmt.py", [get_rule_path()]),
# not testing lint.py as it runs regularly anyway
pytest.param("match-function-id.py", [get_file_path()]),
pytest.param(
"show-capabilities-by-function.py",
[get_file_path()],
marks=pytest.mark.xfail(reason="rendering hasn't been added yet"),
),
pytest.param("show-capabilities-by-function.py", [get_file_path()]),
pytest.param("show-features.py", [get_file_path()]),
pytest.param("show-features.py", ["-F", "0x407970", get_file_path()]),
pytest.param(
"show-unused-features.py", [get_file_path()], marks=pytest.mark.xfail(reason="relies on legacy ruleset")
),
pytest.param(
"capa_as_library.py", [get_file_path()], marks=pytest.mark.xfail(reason="relies on legacy ruleset")
),
pytest.param("show-unused-features.py", [get_file_path()]),
pytest.param("capa_as_library.py", [get_file_path()]),
],
)
def test_scripts(script, args):
@@ -65,7 +55,6 @@ def test_scripts(script, args):
assert p.returncode == 0
@pytest.mark.xfail(reason="relies on legacy ruleset")
def test_bulk_process(tmp_path):
# create test directory to recursively analyze
t = tmp_path / "test"
@@ -86,7 +75,7 @@ def run_program(script_path, args):
return subprocess.run(args, stdout=subprocess.PIPE)
@pytest.mark.xfail(reason="rendering hasn't been added yet")
@pytest.mark.xfail(reason="RD test files haven't been updated yet")
def test_proto_conversion(tmp_path):
t = tmp_path / "proto-test"
t.mkdir()