SEKOIA_Apt_Unc4990_Explorer_Ps1

rule SEKOIA_Apt_Unc4990_Explorer_Ps1
{
	meta:
		description = "Detects powershell script (explorer.ps1)"
		author = "Sekoia.io"
		id = "2e1abbbf-f9b7-4147-b7da-3544cbc4a5f1"
		date = "2024-02-01"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_unc4990_explorer_ps1.yar#L1-L19"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "5085f738e23b801c7e36408d189755086d91c0bb266af6738c80510eb85e598f"
		score = 75
		quality = 80
		tags = ""
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s0 = "$(get-location).Path"
		$s1 = "+ \"\\Runtime Broker.exe"
		$s2 = "Start-Process -FilePath"
		$s3 = "-Wait;"
		$s4 = "Start-Sleep -s"

	condition:
		all of them and @s3- @s2 < 35
}