mirror of https://github.com/MISP/misp-modules
50 lines
1.5 KiB
Python
50 lines
1.5 KiB
Python
import json
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try:
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import yara
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except (OSError, ImportError):
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print("yara is missing, use 'pip3 install -I -r REQUIREMENTS' from the root of this repository to install it.")
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['yara'], 'output': ['text']}
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moduleinfo = {
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'version': '0.1',
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'author': 'Dennis Rand',
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'description': 'An expansion hover module to perform a syntax check on if yara rules are valid or not.',
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'module-type': ['hover'],
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'name': 'YARA Syntax Validator',
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'logo': 'yara.png',
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'requirements': ['yara_python python library'],
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'features': 'This modules simply takes a YARA rule as input, and checks its syntax. It returns then a confirmation if the syntax is valid, otherwise the syntax error is displayed.',
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'references': ['http://virustotal.github.io/yara/'],
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'input': 'YARA rule attribute.',
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'output': 'Text to inform users if their rule is valid.',
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}
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moduleconfig = []
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def handler(q=False):
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if q is False:
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return False
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request = json.loads(q)
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if not request.get('yara'):
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misperrors['error'] = 'Yara rule missing'
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return misperrors
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try:
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yara.compile(source=request.get('yara'))
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summary = ("Syntax valid")
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except Exception as e:
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summary = ("Syntax error: " + str(e))
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r = {'results': [{'types': mispattributes['output'], 'values': summary}]}
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return r
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def introspection():
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return mispattributes
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def version():
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moduleinfo['config'] = moduleconfig
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return moduleinfo
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