Trojan_Win64_CobaltStrikePacker_AH_MTB

YARA detection rule by roadwy

Trojan:Win64/CobaltStrikePacker.AH!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Trojan_Win64_CobaltStrikePacker_AH_MTB{
	meta:
		description = "Trojan:Win64/CobaltStrikePacker.AH!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {31 03 0f b6 c2 0f b6 53 ?? 0f af d0 48 8b 83 ?? ?? ?? ?? 88 14 01 ff 43 ?? 8b 83 ?? ?? ?? ?? 03 43 ?? 31 83 ?? ?? ?? ?? 48 8b 05 ?? ?? ?? ?? 8b 48 ?? 8b 83 ?? ?? ?? ?? 83 f1 01 09 8b ?? ?? ?? ?? 83 f0 ?? 09 43 ?? 49 81 f8 ?? ?? ?? ?? 90 13 48 8b 0d ?? ?? ?? ?? 8b 81 ?? ?? ?? ?? 03 83 ?? ?? ?? ?? 35 ?? ?? ?? ?? 29 41 ?? 48 8b 83 ?? ?? ?? ?? 8b 4b ?? 33 8b ?? ?? ?? ?? 41 8b 14 00 49 83 c0 04 8b 83 ?? ?? ?? ?? 33 83 ?? ?? ?? ?? 83 e8 ?? 09 43 ?? 8b 83 ?? ?? ?? ?? 0f af c1 48 63 4b ?? 89 83 ?? ?? ?? ?? 8b 43 ?? 2b 43 } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

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

bb714d31-436d-4aa7-b622-a004cfa49f92

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