DITEKSHEN_MALWARE_Win_Vovalex

rule DITEKSHEN_MALWARE_Win_Vovalex : FILE
{
	meta:
		description = "Detects Vovalex ransomware"
		author = "ditekSHen"
		id = "967af585-8a91-5ed0-8400-a8a24d95fd12"
		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#L4705-L4718"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "ea695521981f4b007eee50e95f7989dda1f07cc411c59450489bb17391ff29dc"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "README.VOVALEX.txt" fullword ascii
		$s2 = "\\src\\phobos\\std\\" ascii
		$s3 = "LoadLibraryA(\"Advapi32.dll\")" fullword ascii
		$s4 = "Failed to spawn process \"" fullword ascii
		$s5 = "=== Bypassed ===" fullword ascii
		$s6 = "If you don't know where to buy" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 4 of them
}