{ "Event": { "analysis": "2", "date": "2016-08-13", "extends_uuid": "", "info": "Rule to detect KirBi ticket for Mimikatz by Benjamin Delpy with Contribution of Didier Stevens", "publish_timestamp": "1471358866", "published": true, "threat_level_id": "4", "timestamp": "1471358862", "uuid": "57b3273b-7588-4042-9276-4eb4950d210f", "Orgc": { "name": "CthulhuSPRL.be", "uuid": "55f6ea5f-fd34-43b8-ac1d-40cb950d210f" }, "Tag": [ { "colour": "#ffffff", "local": false, "name": "tlp:white", "relationship_type": "" } ], "Attribute": [ { "category": "Artifacts dropped", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1471358806", "to_ids": true, "type": "yara", "uuid": "57b32756-3d4c-457f-b651-4357950d210f", "value": "rule mimikatz_kirbi_ticket\r\n{\r\n\tmeta:\r\n\t\tdescription\t\t= \"KiRBi ticket for mimikatz\"\r\n\t\tauthor\t\t\t= \"Benjamin DELPY (gentilkiwi); Didier Stevens\"\r\n\r\n\tstrings:\r\n\t\t$asn1\t\t\t= { 76 82 ?? ?? 30 82 ?? ?? a0 03 02 01 05 a1 03 02 01 16 }\r\n\t\t$asn1_84\t\t= { 76 84 ?? ?? ?? ?? 30 84 ?? ?? ?? ?? a0 84 00 00 00 03 02 01 05 a1 84 00 00 00 03 02 01 16 }\r\n\r\n\tcondition:\r\n\t\t$asn1 at 0 or $asn1_84 at 0\r\n}" }, { "category": "External analysis", "comment": "", "deleted": false, "disable_correlation": false, "timestamp": "1471358817", "to_ids": false, "type": "link", "uuid": "57b32761-e19c-462f-b657-4ffe950d210f", "value": "https://github.com/Neo23x0/signature-base/blob/master/yara/gen_kirbi_mimkatz.yar" } ] } }