/*
    This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as long as you use it under this license.
*/

import "pe"

rule Careto_SGH {
	meta:
		author = "AlienVault (Alberto Ortega)"
		description = "TheMask / Careto SGH component signature"
		reference = "www.securelist.com/en/downloads/vlpdfs/unveilingthemask_v1.0.pdf"
		date = "2014/02/11"
	strings:
		$m1 = "PGPsdkDriver" ascii wide fullword
		$m2 = "jpeg1x32" ascii wide fullword
		$m3 = "SkypeIE6Plugin" ascii wide fullword
		$m4 = "CDllUninstall" ascii wide fullword
	condition:
		2 of them
}

rule Careto_OSX_SBD {
	meta:
		author = "AlienVault (Alberto Ortega)"
		description = "TheMask / Careto OSX component signature"
		reference = "www.securelist.com/en/downloads/vlpdfs/unveilingthemask_v1.0.pdf"
		date = "2014/02/11"
	strings:
		/* XORed "/dev/null strdup() setuid(geteuid())" */
		$1 = {FF 16 64 0A 7E 1A 63 4D 21 4D 3E 1E 60 0F 7C 1A 65 0F 74 0B 3E 1C 7F 12}
	condition:
		all of them
}

rule Careto_CnC {
	meta:
		author = "AlienVault (Alberto Ortega)"
		description = "TheMask / Careto CnC communication signature"
		reference = "www.securelist.com/en/downloads/vlpdfs/unveilingthemask_v1.0.pdf"
		date = "2014/02/11"
	strings:
		$1 = "cgi-bin/commcgi.cgi" ascii wide
		$2 = "Group" ascii wide
		$3 = "Install" ascii wide
		$4 = "Bn" ascii wide
	condition:
		all of them
}

rule Careto_CnC_domains {
	meta:
		author = "AlienVault (Alberto Ortega)"
		description = "TheMask / Careto known command and control domains"
		reference = "www.securelist.com/en/downloads/vlpdfs/unveilingthemask_v1.0.pdf"
		date = "2014/02/11"
	strings:
		$1 = "linkconf.net" ascii wide nocase
		$2 = "redirserver.net" ascii wide nocase
		$3 = "swupdt.com" ascii wide nocase
	condition:
		any of them
}