SEKOIA_Apt_Polonium_Technocreep_Strings

rule SEKOIA_Apt_Polonium_Technocreep_Strings : FILE
{
	meta:
		description = "Tries to detect TechnoCreep implant"
		author = "Sekoia.io"
		id = "dad79df3-b081-458e-9c14-1d5e2b43ba91"
		date = "2022-10-12"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_polonium_technocreep_strings.yar#L1-L27"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "6fbd14d39f215b835c0fe7709041ca982774be42d389397d19a41fda6f7a00d1"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.1"
		classification = "TLP:CLEAR"

	strings:
		$ = "file name : " ascii wide
		$ = "copy to : " ascii wide
		$ = "download" ascii wide
		$ = "persistence" ascii wide
		$ = "/cmdResult created!" ascii wide
		$ = "/downloadsResulat created!" ascii wide
		$ = "Downloading will take minets..." ascii wide
		$ = "powershell -Command \"$c1 = " ascii wide
		$ = "Missing Parameter.. Format of command:" ascii wide
		$ = "File Fath On Target Device Not Exists>" ascii wide
		$ = "/MissingDownloadParameter.txt" ascii wide

	condition:
		uint16be( 0 ) == 0x4d5a and filesize < 1MB and 4 of them
}