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YARA Rule: Windows_Ransomware_Rook_ee21fa67.yar

Group: Rook
Valid Rule

rule Windows_Ransomware_Rook_ee21fa67
{
	meta:
		author = "Elastic Security"
		id = "ee21fa67-bd82-40fb-9c6d-bab5abfe14b3"
		fingerprint = "8ef731590e73f79a13d04db39e58b03d0a29fd8e46a0584b0fcaf57ac0efe473"
		creation_date = "2022-01-14"
		last_modified = "2022-04-12"
		threat_name = "Windows.Ransomware.Rook"
		reference_sample = "c2d46d256b8f9490c9599eea11ecef19fde7d4fdd2dea93604cee3cea8e172ac"
		severity = 100
		arch_context = "x86, arm64"
		scan_context = "file, memory"
		license = "Elastic License v2"
		os = "windows"

	strings:
		$a = { 01 75 09 8B C3 FF C3 48 89 74 C5 F0 48 FF C7 48 83 FF 1A 7C DB }

	condition:
		all of them
}