DITEKSHEN_MALWARE_Win_Rasftuby

rule DITEKSHEN_MALWARE_Win_Rasftuby : FILE
{
	meta:
		description = "Detects Rasftuby/DarkCrystal"
		author = "ditekSHen"
		id = "908624a8-0068-5512-a5d0-77ce1f4efd80"
		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#L2933-L2950"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "b769c1986d23173cf8a8a3c8a14d388a7c0327e46d936fc97c449dc55f2a5575"
		score = 75
		quality = 75
		tags = "FILE"
		clamav_sig = "MALWARE.Win.Trojan.DarkCrystal.RAT-Rasftuby"

	strings:
		$s1 = "/DCRS/main.php?data=active" fullword ascii wide
		$s2 = "/socket.php?type=__ds_" ascii wide
		$s3 = "/uploader.php" fullword ascii wide
		$s4 = "del \\\"%USERPROFILE%\\\\AppData\\\\Roaming\\\\Microsoft\\\\Windows\\\\Start Menu\\\\Programs\\\\Startup\\\\System.lnk\\\"" fullword ascii wide
		$s5 = "Host:{0},Port:{1},User:{2},Pass:{3}<STR>" fullword ascii wide
		$s6 = "keyloggerstart_status" fullword ascii wide
		$s7 = "keyloggerstop_status" fullword ascii wide
		$s8 = "[PRINT SCREEN]" fullword ascii wide
		$s9 = "DCS.Internal" ascii

	condition:
		uint16( 0 ) == 0x5a4d and 5 of ( $s* )
}