SEKOIA_Implant_Any_Sliver

rule SEKOIA_Implant_Any_Sliver : FILE
{
	meta:
		description = "Rule which detects any Sliver implant PE/Dlls/ELFs/MAC-O."
		author = "Sekoia.io"
		id = "4b16f28a-2048-4044-8620-8e7a1651f2b1"
		date = "2021-11-08"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/implant_any_sliver.yar#L1-L28"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "c7a2790fd13de0476cfe16ef26b2d4c8775f4f453d076c78975e2c372f03322c"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.1"
		classification = "TLP:CLEAR"

	strings:
		$s1 = ").GetActiveC2" ascii
		$s2 = ").GetVersion" ascii
		$s3 = ").GetReconnectInterval" ascii
		$s4 = ").GetProxyURL" ascii
		$s5 = ").GetPollInterval" ascii

	condition:
		( uint16be( 0 ) == 0x4d5a or uint32be( 0 ) == 0x7f454c46 or uint32be( 0 ) == 0xcffaedfe ) and ( true and filesize < 11MB and filesize > 7MB ) and ( all of ( $s* ) )
}