SEKOIA_Generic_Sharpshooter_Payload_12

rule SEKOIA_Generic_Sharpshooter_Payload_12 : FILE
{
	meta:
		description = "Detects payload created by SharpShooter"
		author = "Sekoia.io"
		id = "b69186cf-9825-4d90-be20-7caa9e7de61f"
		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_12.yar#L1-L18"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "5c9692337c0dd533c7e49bd3850feedad93b256bc2fba45af6121f50ad83f4cc"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

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

	condition:
		all of them and filesize < 2MB
}