DITEKSHEN_MALWARE_Win_Pwshloader_Runpe02

rule DITEKSHEN_MALWARE_Win_Pwshloader_Runpe02
{
	meta:
		description = "Detects PowerShell PE loader / executer. Observed Gorgon TTPs"
		author = "ditekSHen"
		id = "08261054-bebc-58fe-949a-27f6e817003a"
		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#L4922-L4934"
		license_url = "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
		logic_hash = "d7677689938d3e3eb6b59b99b7e347c60214f6edf8e5f83bf85da5a5f1ad33bb"
		score = 75
		quality = 75
		tags = ""

	strings:
		$s1 = "'.Replace('" ascii nocase
		$s2 = "'aspnet_compiler.exe'" ascii
		$s3 = "[Byte[]]$" ascii
		$pe1 = "(77,90," ascii
		$pe2 = "='4D5A" ascii

	condition:
		all of ( $s* ) and ( #pe1 > 1 or #pe2 > 1 ) and #s1 > 4
}