Codoso_PlugX_2

rule Codoso_PlugX_2 {
	meta:
		description = "Detects Codoso APT PlugX Malware"
		license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
		author = "Florian Roth (Nextron Systems)"
		reference = "https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks"
		date = "2016-01-30"
		hash = "b9510e4484fa7e3034228337768176fce822162ad819539c6ca3631deac043eb"
		id = "0402a0ff-5664-52db-a739-51c5181853f8"
	strings:
		$s1 = "%TEMP%\\HID" fullword wide
		$s2 = "%s\\hid.dll" fullword wide
		$s3 = "%s\\SOUNDMAN.exe" fullword wide
		$s4 = "\"%s\\SOUNDMAN.exe\" %d %d" fullword wide
		$s5 = "%s\\HID.dllx" fullword wide
	condition:
		( uint16(0) == 0x5a4d and filesize < 400KB and 3 of them ) or all of them
}