Trojan_Win32_MysticStealer_ASAX_MTB

YARA detection rule by roadwy

Trojan:Win32/MysticStealer.ASAX!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 02 00 00

rule Trojan_Win32_MysticStealer_ASAX_MTB{
	meta:
		description = "Trojan:Win32/MysticStealer.ASAX!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 02 00 00 "
		
	strings :
		$a_03_0 = {ff d6 80 34 2f ?? ff d6 80 04 2f ?? ff d6 80 04 2f ?? ff d6 80 04 2f ?? 47 3b fb 0f 82 } 		$a_03_1 = {ff d6 80 34 ?? fc ff d6 fe 04 2f ff d6 80 04 2f ?? ff d6 80 04 2f ?? 47 3b fb 0f 82 } 	condition:
		((#a_03_0  & 1)*5+(#a_03_1  & 1)*5) >=5
 
}

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

e136e077-8f2f-4491-b040-5b3701d8b0ae

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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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