rule IMPLANT_4_v3_AlternativeRule : HIGHVOL {
meta:
description = "Detects a group of different malware samples"
comment = "Alternative rule - not based on the original samples but samples on which the original rule matched"
license = "Detection Rule License 1.1 https://github.com/Neo23x0/signature-base/blob/master/LICENSE"
author = "Florian Roth (Nextron Systems)"
reference = "US CERT Grizzly Steppe Report"
date = "2017-02-12"
hash1 = "2244fe9c5d038edcb5406b45361613cf3909c491e47debef35329060b00c985a"
id = "47e9028b-7718-5372-8a1a-94c208c29ed4"
strings:
$op1 = { 33 c9 41 ff 13 13 c9 ff 13 72 f8 c3 53 1e 01 00 } /* Opcode */
$op2 = { 21 da 40 00 00 a0 40 00 08 a0 40 00 b0 70 40 00 } /* Opcode */
condition:
( uint16(0) == 0x5a4d and all of them )
}