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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
1.6 KiB
1.6 KiB
API Reference: Malware Triage with YARA
yara-python API
import yara
# Compile from files
rules = yara.compile(filepaths={"ns1": "rules.yar"})
# Compile from string
rules = yara.compile(source='rule test { condition: true }')
# Scan file
matches = rules.match("/path/to/sample")
# Scan data
matches = rules.match(data=open("sample", "rb").read())
Match Object Attributes
| Attribute | Type | Description |
|---|---|---|
match.rule |
str | Name of the matching rule |
match.namespace |
str | Rule file namespace |
match.tags |
list | Tags from the rule definition |
match.meta |
dict | Meta fields (author, description, hash) |
match.strings |
list | Matched strings: (offset, identifier, data) |
YARA CLI
| Command | Description |
|---|---|
yara rules.yar sample.exe |
Scan file against rules |
yara -r rules.yar /dir/ |
Recursive directory scan |
yara -s rules.yar sample.exe |
Show matching strings |
yarac rules.yar compiled.yarc |
Compile rules for faster loading |
yara -C rules.yar |
Check rule syntax |
Python Libraries
| Library | Version | Purpose |
|---|---|---|
yara-python |
>=4.3 | YARA rule compilation and scanning |
hashlib |
stdlib | Sample hashing (SHA-256, MD5) |
References
- YARA documentation: https://yara.readthedocs.io/
- yara-python: https://github.com/VirusTotal/yara-python
- YARA-Rules community: https://github.com/Yara-Rules/rules
- Signature-base: https://github.com/Neo23x0/signature-base
- yarGen rule generator: https://github.com/Neo23x0/yarGen