rule SUSP_Size_of_ASUS_TuningTool {
meta:
description = "Detects an ASUS tuning tool with a suspicious size"
author = "Florian Roth (Nextron Systems)"
reference = "https://www.welivesecurity.com/2018/10/17/greyenergy-updated-arsenal-dangerous-threat-actors/"
date = "2018-10-17"
modified = "2022-12-21"
score = 60
noarchivescan = 1
hash1 = "d4e97a18be820a1a3af639c9bca21c5f85a3f49a37275b37fd012faeffcb7c4a"
id = "d22a1bf9-55d6-5cb4-9537-ad13b23af4d1"
strings:
$s1 = "\\Release\\ASGT.pdb" ascii
condition:
uint16(0) == 0x5a4d and filesize < 300KB and filesize > 70KB and all of them
}