DITEKSHEN_MALWARE_Win_Prolock

rule DITEKSHEN_MALWARE_Win_Prolock : FILE
{
	meta:
		description = "ProLock ransomware payload"
		author = "ditekSHen"
		id = "88fa19ba-238c-5d4d-bf0c-d421ee2ecf1d"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L1397-L1413"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "b7d2cc71acc4f643a86781d957afcf5203a2f4034b9ca7da93e8227ddee79f3b"
		score = 75
		quality = 75
		tags = "FILE"
		clamav_sig = "MALWARE.Win.Ransomware.ProLock"

	strings:
		$s1 = ".flat" fullword ascii
		$s2 = ".data" fullword ascii
		$s3 = ".api" fullword ascii
		$s4 = "RtlZeroMemory" fullword ascii
		$s5 = "LoadLibraryA" fullword ascii
		$s6 = "Sleep" fullword ascii
		$s7 = "lstrcatA" fullword ascii
		$s8 = { 55 89 E5 8B 45 08 EB 00 89 45 EC 8D 15 4F 10 40 00 8D 05 08 10 40 00 83 E8 08 29 C2 8B 45 EC 01 C2 31 }

	condition:
		uint16( 0 ) == 0x5a4d and all of them
}