Trojan_Win32_CryptInject_YAA_MTB

YARA detection rule by roadwy

Trojan:Win32/CryptInject.YAA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Trojan_Win32_CryptInject_YAA_MTB{
	meta:
		description = "Trojan:Win32/CryptInject.YAA!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_02_0 = {53 33 db 66 ?? ?? ?? ?? ?? ?? 6c 00 c6 ?? ?? ?? ?? 00 6b c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? 66 c7 05 ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c6 05 ?? ?? ?? ?? ?? c6 05 ?? ?? ?? ?? ?? c6 05 ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? c7 05 ?? ?? ?? ?? ?? ?? ?? ?? 66 c7 05 ?? ?? ?? ?? ?? ?? 88 ?? ?? ?? ?? ?? 56 3d } 	condition:
		((#a_02_0  & 1)*1) >=1
 
}

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

c81f9673-a3d6-444b-92ac-eea777a96c0e

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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 ]]

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