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File and analysis artifacts yara matcher for Karton framework

Home Page: https://github.com/CERT-Polska/karton

License: BSD 3-Clause "New" or "Revised" License

Python 97.80% Dockerfile 2.20%

karton malware-analysis malware-research pipeline cybersecurity cert csirt yara

karton-yaramatcher's Introduction

YaraMatcher karton service

Scans analyses and samples with yara rules and spawns tasks with appropiate tags.

Author: CERT.pl

Maintainers: nazywam

Consumes:

{
    "type": "sample",
    "stage": "recognized",
    "kind": "runnable"
}, {
    "type": "sample",
    "stage": "recognized",
    "kind": "dump"
}, {
    "type": "analysis",
    "kind": "cuckoo1"
}, {
    "type": "analysis",
    "kind": "drakrun"
}, {
    "type": "analysis",
    "kind": "joesandbox"
}

Produces:

{
    "type": "sample",
    "stage": "analyzed"
}

Usage

First of all, make sure you have setup the core system: https://github.com/CERT-Polska/karton

Then install karton-yaramatcher from PyPi:

$ pip install karton-yaramatcher

And run the karton service by pointing it to your YARA rules repository:

$ karton-yaramatcher --rules yara_rule_directory

karton-yaramatcher's People

Contributors

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Forkers

c3rb3ru5d3d53c ekmixon radizzle r1d3th3wav3s v1d1an phretor jconnor0426 msm-code marienmare

karton-yaramatcher's Issues

Rules update on-fly support

For now, to update yara rules you need to reload the instance. As I can see, we have a chance to lose data if we will stop the scan process in the middle of YaraMatcher.process call. It would be nice to have the possibility to reinit YaraHandler if there are some changes in rules folder using Threading module.

As an example, we can adapt this script and if we have some changes in our yara rules - pause the scan, reinit the YaraMatcher, resume the scan.

Make working testcases using tlp:white rules

Is it possible to filter by payload?

I would like to create a service that will trigger only on certain files by yara rule (for examples, on UPX-ed or FSG-ed), is there any way to do it or for this I should add a possibility to add certain rule names to headers, not payload?

Compiled Signature Support

I'll probably work on adding pre-compiled signature support to this module and make a PR, should be labelled as enhancement.

Putting this here so I don't forget!

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