SEKOIA_Apt_Badmagic_Startngrok_Pshscript

rule SEKOIA_Apt_Badmagic_Startngrok_Pshscript : FILE
{
	meta:
		description = "Detects BadMagic StartNgrok powershell script"
		author = "Sekoia.io"
		id = "94d64482-3033-4531-8530-58546364ac06"
		date = "2023-05-15"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_badmagic_startngrok_pshscript.yar#L1-L19"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "f15f9dc2c35f3f7cd816aa539c03b857254c3628c9b14eacca1110bb85b1a24c"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$ = "$ExecutablePath http \"\"file:///$Disk"
		$ = "write \"$ExecutablePath not found"
		$ = "$ng_proxy_string ="
		$ = "$ng_auth_token ="
		$ = "$env:ALLUSERSPROFILE\\$NGrokFolderName"

	condition:
		all of them and filesize < 1KB
}