DITEKSHEN_MALWARE_Win_Vbsdownloader

rule DITEKSHEN_MALWARE_Win_Vbsdownloader : FILE
{
	meta:
		description = "Detects second stage VBS downloader of third stage VBS"
		author = "ditekShen"
		id = "480e6872-3a8c-58c5-a455-02342ec7918c"
		date = "2020-11-06"
		modified = "2024-11-01"
		reference = "https://github.com/ditekshen/detection"
		source_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L11363-L11375"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "fee9a78e60d02ff2f03035812af2bf36fe350c70d3e4e094713791833f8ba4d6"
		score = 75
		quality = 75
		tags = "FILE"

	strings:
		$s1 = "CreateObject(\"MSXML2.ServerXMLHTTP\")" wide
		$s2 = ".Open \"GET\"," wide
		$s3 = ".Send" wide
		$s4 = ".responseText" wide
		$s5 = "ExecuteGlobal" wide

	condition:
		filesize < 50KB and all of them
}