SEKOIA_Apt_Uac0099_Lonepage

rule SEKOIA_Apt_Uac0099_Lonepage : FILE
{
	meta:
		description = "Detects LonePage vbs malware"
		author = "Sekoia.io"
		id = "007f62f5-da5c-4df7-8b5c-5ed815ce6993"
		date = "2024-01-08"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_uac0099_lonepage.yar#L1-L30"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "479f438acb63c76e09722640b973e76d1f1924bf24db477ca6898d123091d5f8"
		score = 75
		quality = 76
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$s0 = "dim r, c" ascii fullword
		$s1 = "= createobject(\"WScript.Shell\")" ascii fullword
		$s2 = "r.Run c, 0, false" ascii fullword
		$t1 = "GetHostAddresses" ascii fullword nocase
		$t2 = "upgrade.txt" ascii fullword nocase
		$t3 = "net.webclient" ascii fullword nocase
		$t4 = "downloaddata" ascii fullword nocase
		$t5 = "[System.Environment]::NewLine" ascii fullword nocase
		$t6 = ".uploaddata('" ascii nocase

	condition:
		true and filesize < 10KB and ( ( $s1 at 0x10 and $s0 at 0 and $s2 and 2 of ( $t* ) ) or ( all of ( $t* ) and any of ( $s* ) ) )
}