Trojan_Win64_MuddyWater_GVF_MTB

YARA detection rule by roadwy

Trojan:Win64/MuddyWater.GVF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Trojan_Win64_MuddyWater_GVF_MTB{
	meta:
		description = "Trojan:Win64/MuddyWater.GVF!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_01_0 = {48 83 f9 13 77 26 0f b6 54 31 02 c1 e2 10 44 0f b7 04 31 44 01 c2 81 c2 00 00 00 f0 33 14 08 89 94 0c 80 01 00 00 48 83 c1 04 eb d4 } 	condition:
		((#a_01_0  & 1)*1) >=1
 
}

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

8feac70b-b260-4a04-820d-67d9df1118fb

Propose edits, view related rules, and engage with the community through comments.

Executable code, not a declarative rule

This submission is arbitrary [[ currentRule.format ? currentRule.format.toUpperCase() : '' ]] code, not a declarative detection rule — review it as you would any script before running it, and note that it cannot be safely aggregated or auto-executed alongside YARA/Sigma/Suricata/CRS rules.

Rejected pattern present

[[ reason ]]

What does this mean?

Format & documentation suggestions

Not a security issue — this rule is valid and was accepted as-is. These are optional fields/conventions its own format recommends, mainly affecting its quality score and how well it documents itself for other reviewers.

[[ reason ]]

What do these messages mean?

[[ currentRule.title && currentRule.title.length > 60 ? currentRule.title.slice(0, 60) + '…' : currentRule.title ]]

[[ currentRule.title ]]

Community Discussion