SEKOIA_Implant_Mul_Alchimist

rule SEKOIA_Implant_Mul_Alchimist : FILE
{
	meta:
		description = "Detect the Alchimist implant based on strings"
		author = "Sekoia.io"
		id = "66330cc6-a7da-4717-9977-0cede48f46f5"
		date = "2022-10-18"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/implant_mul_alchimist.yar#L1-L21"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "d4a5338c502b145a1d7ad9f35779e24d66ee2d11bf760d498aab39e2c62fbeb4"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$str01 = "POST /users/loginpage.html HTTP/1.1" ascii
		$str02 = "pm3/apps/Insekt/main.go" ascii
		$str03 = "generate new insekt err" ascii
		$str04 = "[SHELLCODE][filesize]:[scan]" ascii
		$str05 = "\\Device\\NamedPipe\\cygwinbad" ascii
		$str06 = "pm3/utils.GetTmpDir" ascii
		$str07 = "os/exec.Command" ascii

	condition:
		( uint16( 0 ) == 0x5A4D or uint32( 0 ) == 0x464C457F ) and 5 of them
}