MALPEDIA_Win_Cryptolocker_Auto

rule MALPEDIA_Win_Cryptolocker_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a1492219-98ad-5e35-8268-c59b9dfb3959"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.cryptolocker"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.cryptolocker_auto.yar#L1-L119"
		license_url = "N/A"
		logic_hash = "7b5dc6c7b86f8cb7cbfa9c2f5ea25879d15637080e202621f477c8bf367345bf"
		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 = { 6a00 ff7508 56 ff15???????? 8bf8 85f6 }
		$sequence_1 = { eb6f 85c0 7555 f605????????01 753b 68???????? ff15???????? }
		$sequence_2 = { 50 ff15???????? 83f801 750c 837dfc14 7506 8be5 }
		$sequence_3 = { ff15???????? 8d4e10 c701???????? e8???????? 807e0c00 }
		$sequence_4 = { 55 8bec 56 8bf1 837e0400 c706???????? 751e }
		$sequence_5 = { 83ec24 c705????????1c010000 68???????? ff15???????? }
		$sequence_6 = { 8d043f 8945f4 66837c08fe5c 0f95450b }
		$sequence_7 = { 50 8b4320 8b4004 ff741824 }
		$sequence_8 = { 6a00 ff7634 ff15???????? 3d02010000 }
		$sequence_9 = { 50 ff7618 ff15???????? 5f 5e b001 5b }

	condition:
		7 of them and filesize < 778240
}