misp-circl-feed/feeds/circl/stix-2.1/5894f12f-709c-4502-a896-7dbf02de0b81.json

{
    "type": "bundle",
    "id": "bundle--5894f12f-709c-4502-a896-7dbf02de0b81",
    "objects": [
        {
            "type": "identity",
            "spec_version": "2.1",
            "id": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f",
            "created": "2017-02-03T21:10:19.000Z",
            "modified": "2017-02-03T21:10:19.000Z",
            "name": "CIRCL",
            "identity_class": "organization"
        },
        {
            "type": "report",
            "spec_version": "2.1",
            "id": "report--5894f12f-709c-4502-a896-7dbf02de0b81",
            "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f",
            "created": "2017-02-03T21:10:19.000Z",
            "modified": "2017-02-03T21:10:19.000Z",
            "name": "OSINT - Windows SMBv3 Denial of Service Proof of Concept (0 Day Exploit)",
            "published": "2017-02-03T21:10:32Z",
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                "indicator--5894f14c-b000-4526-88c4-874d02de0b81",
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                "url--5894f176-4fe8-4611-91d5-46d602de0b81",
                "observed-data--5894f1a8-fda4-499e-ba27-8cd702de0b81",
                "url--5894f1a8-fda4-499e-ba27-8cd702de0b81"
            ],
            "labels": [
                "Threat-Report",
                "misp:tool=\"MISP-STIX-Converter\""
            ],
            "object_marking_refs": [
                "marking-definition--613f2e26-407d-48c7-9eca-b8e91df99dc9"
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            "type": "indicator",
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            "created": "2017-02-03T21:08:38.000Z",
            "modified": "2017-02-03T21:08:38.000Z",
            "description": "Based on this understanding of the exploit (please let me know if I didn't get it right or missed something), I wrote a simple snort signature that looks for Tree Connect messages that exceed 1000 bytes in size. Use this at your own risk. It is in \"works for me\" state:",
            "pattern": "[alert tcp $EXTERNAL_NET 445 -> $HOME_NET any  (sid: 10001515; msg: \"SMB Excessive Large Tree Connect Response\"; byte_test: 3,>,1000,1; content: \"|fe 53 4d 42 40 00|\"; offset: 4; depth: 6; content: \"|03 00|\"; offset: 16; depth:2 ;)]",
            "pattern_type": "snort",
            "valid_from": "2017-02-03T21:08:38Z",
            "kill_chain_phases": [
                {
                    "kill_chain_name": "misp-category",
                    "phase_name": "Network activity"
                }
            ],
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                "misp:type=\"snort\"",
                "misp:category=\"Network activity\""
            ]
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            "type": "observed-data",
            "spec_version": "2.1",
            "id": "observed-data--5894f176-4fe8-4611-91d5-46d602de0b81",
            "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f",
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            "modified": "2017-02-03T21:09:25.000Z",
            "first_observed": "2017-02-03T21:09:25Z",
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                "misp:type=\"link\"",
                "misp:category=\"Payload delivery\"",
                "ms-caro-malware:malware-type=\"Exploit\""
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            "type": "url",
            "spec_version": "2.1",
            "id": "url--5894f176-4fe8-4611-91d5-46d602de0b81",
            "value": "https://github.com/lgandx/PoC/tree/master/SMBv3%20Tree%20Connect"
        },
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            "type": "observed-data",
            "spec_version": "2.1",
            "id": "observed-data--5894f1a8-fda4-499e-ba27-8cd702de0b81",
            "created_by_ref": "identity--55f6ea5e-2c60-40e5-964f-47a8950d210f",
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            "modified": "2017-02-03T21:10:19.000Z",
            "first_observed": "2017-02-03T21:10:19Z",
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            "number_observed": 1,
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                "misp:type=\"link\"",
                "misp:category=\"External analysis\"",
                "osint:source-type=\"blog-post\"",
                "admiralty-scale:source-reliability=\"b\""
            ]
        },
        {
            "type": "url",
            "spec_version": "2.1",
            "id": "url--5894f1a8-fda4-499e-ba27-8cd702de0b81",
            "value": "https://isc.sans.edu/diary/Windows%2BSMBv3%2BDenial%2Bof%2BService%2BProof%2Bof%2BConcept%2B%280%2BDay%2BExploit%29/22029"
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            "created": "2017-01-20T00:00:00.000Z",
            "definition_type": "tlp",
            "name": "TLP:WHITE",
            "definition": {
                "tlp": "white"
            }
        }
    ]
}