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DITEKSHEN_INDICATOR_KB_ID_Ransomware_Ryuk

Detects files referencing identities associated with Ryuk ransomware

Suspicious / huntingditekSHen detectionBSD 2-Clause LicenseCompiles with YARA-X
Author
ditekShen
Date
2021-01-21
Modified
2024-01-23
Score / Quality
75 / 71

What this rule detects

Detects files referencing identities associated with Ryuk ransomware

It defines 3 patterns (3 text, 0 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

Download .yar
indicator-kb-id-ransomware-ryuk.yarBSD 2-Clause License
rule DITEKSHEN_INDICATOR_KB_ID_Ransomware_Ryuk
{
	meta:
		description = "Detects files referencing identities associated with Ryuk ransomware"
		author = "ditekShen"
		id = "00cf99da-ff3c-5c91-8966-69a8afc8613a"
		date = "2021-01-21"
		modified = "2024-01-23"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/indicator_knownbad_id.yar#L582-L592"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "a2b6106fc49dd254ca936e285fa0c2a3aee7110832686638d20d369d77f6c48f"
		score = 75
		quality = 71
		tags = ""

	strings:
		$s1 = "WayneEvenson@protonmail.com" ascii wide nocase
		$s2 = "WayneEvenson@tutanota.com" ascii wide nocase
		$s3 = "14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk" ascii wide

	condition:
		any of them
}

Strings (3 patterns)

IdentifierTypeValueModifiers
$s1text"WayneEvenson@protonmail.com"ascii wide nocase
$s2text"WayneEvenson@tutanota.com"ascii wide nocase
$s3text"14hVKm7Ft2rxDBFTNkkRC3kGstMGp2A4hk"ascii wide

Condition

any of them

In plain words (Heuristic)

  • At least one pattern in the rule must match.

Test this rule in your browser

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References

Licence & attribution

Author: ditekShen

Source repository: ditekSHen detection @ e76c93dcde

Licence: BSD 2-Clause License (repository licence)

Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: 00cf99da-ff3c-5c91-8966-69a8afc8613a

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