SEKOIA_Generic_Sharpshooter_Payload_4

rule SEKOIA_Generic_Sharpshooter_Payload_4 : FILE
{
	meta:
		description = "Detects payload created by SharpShooter"
		author = "Sekoia.io"
		id = "b8327436-3f3d-441c-86b7-35cd30144dc2"
		date = "2023-02-03"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/generic_sharpshooter_payload_4.yar#L1-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "ee67eb7b51ff6f3882c6b3ad86c3581396ba02f616c29a0190d0a2ad3d2ea614"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "Function RC4(byteMessage, strKey)"
		$ = "Set EL = DM.createElement("
		$ = "decodeBase64 = EL.NodeTypedValue"
		$ = "Execute plain"

	condition:
		all of them and filesize < 2MB
}