SEKOIA_Generic_Sharpshooter_Payload_10

rule SEKOIA_Generic_Sharpshooter_Payload_10 : FILE
{
	meta:
		description = "Detects payload created by SharpShooter"
		author = "Sekoia.io"
		id = "477f8b92-e231-460c-8660-487d0a97f0e2"
		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_10.yar#L1-L17"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "6ded3f5b7e9c7f2c09e3bc0869e41775e4bb31a39e6fef8209f50f5091e8d2e2"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "length = enc.GetByteCount_2(b);"
		$ = "ms.Write(ba, 0, (length / 4) * 3);"
		$ = "d.DynamicInvoke(al.ToArray()).CreateInstance(entry_class);"

	condition:
		all of them and filesize < 2MB
}