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mukul975
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Complete skill folder anatomy across all cybersecurity skills: - scripts/agent.py: 80-150 line Python agents using real libraries (impacket, boto3, azure-mgmt-*, kubernetes, pefile, yara, scapy, shodan, stix2, etc.) - references/api-reference.md: real API documentation with method signatures - LICENSE: MIT license for all skill folders
2.3 KiB
2.3 KiB
API Reference: Analyzing Threat Intelligence Feeds
taxii2-client
Server Discovery
from taxii2client.v21 import Server
server = Server("https://cti.example.com/taxii2/", user="u", password="p")
for api_root in server.api_roots:
for col in api_root.collections:
print(col.id, col.title)
Fetch Indicators from Collection
from taxii2client.v21 import Collection, as_pages
collection = Collection(
"https://cti.example.com/taxii2/collections/abc123/",
user="u", password="p"
)
for bundle in as_pages(collection.get_objects, per_request=100):
for obj in bundle.get("objects", []):
if obj["type"] == "indicator":
print(obj["pattern"])
Push Indicators
collection.add_objects(stix_bundle_json)
stix2 (Python Library)
Create Indicator
from stix2 import Indicator
indicator = Indicator(
name="Malicious IP",
pattern="[ipv4-addr:value = '1.2.3.4']",
pattern_type="stix",
valid_from="2025-01-01T00:00:00Z",
confidence=85,
)
Create Bundle and Serialize
from stix2 import Bundle
bundle = Bundle(objects=[indicator])
print(bundle.serialize(pretty=True))
MemoryStore for Querying
from stix2 import MemoryStore, Filter
store = MemoryStore(stix_data=bundle)
results = store.query([Filter("type", "=", "indicator")])
STIX 2.1 Pattern Syntax
| IOC Type | Pattern |
|---|---|
| IPv4 | [ipv4-addr:value = '1.2.3.4'] |
| Domain | [domain-name:value = 'evil.com'] |
| SHA-256 | [file:hashes.'SHA-256' = 'abc...'] |
| URL | [url:value = 'http://evil.com/payload'] |
[email-addr:value = 'phish@evil.com'] |
TAXII 2.1 HTTP Endpoints
| Endpoint | Method | Description |
|---|---|---|
/taxii2/ |
GET | Server discovery |
/{api-root}/collections/ |
GET | List collections |
/{api-root}/collections/{id}/objects/ |
GET | Get STIX objects |
/{api-root}/collections/{id}/objects/ |
POST | Add STIX objects |
References
- taxii2-client: https://pypi.org/project/taxii2-client/
- stix2 library: https://pypi.org/project/stix2/
- STIX 2.1 spec: https://docs.oasis-open.org/cti/stix/v2.1/stix-v2.1.html
- TAXII 2.1 spec: https://docs.oasis-open.org/cti/taxii/v2.1/taxii-v2.1.html