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17 changes: 9 additions & 8 deletions api_app/ingestors_manager/ingestors/malware_bazaar.py
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@ class MalwareBazaar(AbuseCHMixin, Ingestor):
hours: int
# Download samples from chosen signatures (aka malware families)
signatures: str
# Max number of results you want to display
limit: int

@classmethod
def update(cls) -> bool:
Expand All @@ -32,7 +34,7 @@ def update(cls) -> bool:
def get_signature_information(self, signature):
result = requests.post(
self.url,
data={"query": "get_siginfo", "signature": signature, "limit": 100},
data={"query": "get_siginfo", "signature": signature, "limit": self.limit},
headers=self.authentication_header,
timeout=30,
)
Expand All @@ -53,20 +55,19 @@ def get_recent_samples(self):
current_time = timezone.now()
for signature in self.signatures:
data = self.get_signature_information(signature)
hours_str = "hour" if self.hours == 1 else "hours"
if len(data) > self.limit:
logger.info(
f"{signature}: in the last {hours_str} there are "
f"more results than the limit {len(data)}/{self.limit}"
)
for elem in data:
first_seen = timezone.make_aware(
timezone.datetime.strptime(elem["first_seen"], "%Y-%m-%d %H:%M:%S")
)
diff = int((current_time - first_seen).total_seconds()) // 3600
if elem["signature"] == signature and diff <= self.hours:
hashes.add(elem["sha256_hash"])

last_hours_str = (
"Last hour" if self.hours == 1 else f"Last {self.hours} hours"
)
logger.info(
f"{last_hours_str} {signature} samples: {len(hashes)}/{len(data)}"
)
return hashes

def download_sample(self, h):
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,80 @@
from django.db import migrations


def migrate(apps, schema_editor):
Parameter = apps.get_model("api_app", "Parameter")
PythonModule = apps.get_model("api_app", "PythonModule")
IngestorConfig = apps.get_model("ingestors_manager", "IngestorConfig")
PluginConfig = apps.get_model("api_app", "PluginConfig")

ingestors = [
"malware_bazaar.MalwareBazaar",
"threatfox.ThreatFox",
]
for ingestor in ingestors:
module = PythonModule.objects.get(
module=ingestor,
base_path="api_app.ingestors_manager.ingestors",
)
p = Parameter.objects.create(
name="limit",
type="int",
description="Max number of results.",
is_secret=False,
required=True,
python_module=module,
)
p.full_clean()
p.save()

ic = IngestorConfig.objects.get(name=ingestor.split(".")[1])
pc = PluginConfig(
value=20,
ingestor_config=ic,
for_organization=False,
owner=None,
parameter=p,
)
pc.full_clean()
pc.save()


def reverse_migrate(apps, schema_editor):
Parameter = apps.get_model("api_app", "Parameter")
PythonModule = apps.get_model("api_app", "PythonModule")
IngestorConfig = apps.get_model("ingestors_manager", "IngestorConfig")
PluginConfig = apps.get_model("api_app", "PluginConfig")

ingestors = [
"malware_bazaar.MalwareBazaar",
"threatfox.ThreatFox",
]
for ingestor in ingestors:
module = PythonModule.objects.get(
module=ingestor,
base_path="api_app.ingestors_manager.ingestors",
)
ic = IngestorConfig.objects.get(name=ingestor.split(".")[1])
p = Parameter.objects.get(
name="limit",
type="int",
description="Max number of results.",
is_secret=False,
required=True,
python_module=module,
)
PluginConfig.objects.get(
parameter=p,
ingestor_config=ic,
).delete()
p.delete()


class Migration(migrations.Migration):
atomic = False
dependencies = [
("api_app", "0065_job_mpnodesearch"),
("ingestors_manager", "0026_alter_ingestor_config_malware_bazaar_threatfox"),
]

operations = [migrations.RunPython(migrate, reverse_migrate)]
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