MALPEDIA_Win_Yakuza_Ransomware_Auto

rule MALPEDIA_Win_Yakuza_Ransomware_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "224ba63c-d4f0-51b1-8c05-67d4892ede1d"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.yakuza_ransomware"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.yakuza_ransomware_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "0a0df7fa583a3ef9907c16a286a3464ad9534c70947de91ef5e701245c7f072f"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { e8???????? c645fc2a c78550f7ffff4c844e00 c78554f7ffff7c7f4e00 c78558f7ffff947b4e00 c645fc2b 8d8d64f7ffff }
		$sequence_1 = { e8???????? 8d8d34feffff c645fc67 e8???????? 6a01 8d8d4cfeffff e8???????? }
		$sequence_2 = { ff75c8 e8???????? 8d45cc 50 e8???????? 83c404 8d4d60 }
		$sequence_3 = { e9???????? 8d8de4feffff e9???????? 8d8dd0f9ffff e9???????? 8d8de8f9ffff e9???????? }
		$sequence_4 = { 897df0 c745fc00000000 6a54 6a00 57 e8???????? 83c410 }
		$sequence_5 = { ff742418 68???????? 68???????? e8???????? 8b4704 8d4f04 83c40c }
		$sequence_6 = { e8???????? 8b4e0c 8d45dc 50 83c11c c645fc61 e8???????? }
		$sequence_7 = { e8???????? c645fc2b 83ec08 50 8d8d08ffffff e8???????? c645fc2d }
		$sequence_8 = { e8???????? 807b3400 c645fc14 7507 e8???????? eb05 e8???????? }
		$sequence_9 = { ff5018 8bf8 8b06 8b0f 8b5918 3d???????? 7521 }

	condition:
		7 of them and filesize < 2811904
}