SEKOIA_Apt_Muddywater_Muddyc2Go_Dll_Launcher_Strings

rule SEKOIA_Apt_Muddywater_Muddyc2Go_Dll_Launcher_Strings : FILE
{
	meta:
		description = "Detects MuddyC2Go DLL launcher"
		author = "Sekoia.io"
		id = "59756195-d842-4038-8fbf-43d26f4353bc"
		date = "2024-03-07"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_muddywater_muddyc2go_dll_launcher_strings.yar#L1-L20"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		hash = "1a0827082d4b517b643c86ee678eaa53f85f1b33ad409a23c50164c3909fdaca"
		logic_hash = "b91653e313258ebd2073a398d0467800056ac94adab02c3a83aa8a379710e4e6"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "-Method GET -ErrorAction Stop;Write-Output $response.Content;iex $response.Content;"
		$ = "GetCurrentProcess"
		$ = "TerminateProcess"

	condition:
		uint16be( 0 ) == 0x4d5a and filesize < 50KB and all of them
}