signature-base/yara/crime_credstealer_generic.yar

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2017-06-07 14:21:24 +00:00
rule CredentialStealer_Generic_Backdoor {
meta:
description = "Detects credential stealer byed on many strings that indicate password store access"
license = "https://creativecommons.org/licenses/by-nc/4.0/"
2017-06-07 14:21:24 +00:00
author = "Florian Roth"
reference = "Internal Research"
date = "2017-06-07"
hash1 = "edb2d039a57181acf95bd91b2a20bd9f1d66f3ece18506d4ad870ab65e568f2c"
strings:
$s1 = "GetOperaLoginData" fullword ascii
$s2 = "GetInternetExplorerCredentialsPasswords" fullword ascii
$s3 = "%s\\Opera Software\\Opera Stable\\Login Data" fullword ascii
$s4 = "select * from moz_logins" fullword ascii
$s5 = "%s\\Google\\Chrome\\User Data\\Default\\Login Data" fullword ascii
$s6 = "Host.dll.Windows" fullword ascii
$s7 = "GetInternetExplorerVaultPasswords" fullword ascii
$s8 = "GetWindowsLiveMessengerPasswords" fullword ascii
$s9 = "%s\\Chromium\\User Data\\Default\\Login Data" fullword ascii
$s10 = "%s\\Opera\\Opera\\profile\\wand.dat" fullword ascii
condition:
( uint16(0) == 0x5a4d and 4 of them )
}