SEKOIA_Hacktool_Win_Gmer

import "pe"

rule SEKOIA_Hacktool_Win_Gmer : FILE
{
	meta:
		description = "Dtect the GMER hacktool based string and UPX usage"
		author = "Sekoia.io"
		id = "d2f1aba1-4222-45e5-95bd-4d7f08595cea"
		date = "2022-09-09"
		modified = "2024-12-19"
		reference = "https://github.com/SEKOIA-IO/Community"
		source_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/hacktool_win_gmer.yar#L3-L24"
		license_url = "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
		logic_hash = "dbd4e97c343dcb14c6e814afa820a9fbb5aa4290c7ddf9d864029bb35bb96dbf"
		score = 75
		quality = 80
		tags = "FILE"
		version = "1.0"
		classification = "TLP:CLEAR"

	strings:
		$pac = "IDI_GMER" wide
		$str0 = "---- Processes - GMER %s ----" ascii
		$str1 = "E:\\projects\\cpp\\gmer\\Release\\gmer.pdb" ascii

	condition:
		uint16( 0 ) == 0x5A4D and ( ( $pac and for any i in ( 0 .. pe.number_of_sections -1 ) : ( pe.sections [ i ] . name == "UPX0" ) ) or any of ( $str* ) ) and filesize < 900KB
}