Trojan_Win32_Fsysna_AS_MTB

YARA detection rule by roadwy

Trojan:Win32/Fsysna.AS!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0f 00 0f 00 03 00 00

rule Trojan_Win32_Fsysna_AS_MTB{
	meta:
		description = "Trojan:Win32/Fsysna.AS!MTB,SIGNATURE_TYPE_PEHSTR_EXT,0f 00 0f 00 03 00 00 "
		
	strings :
		$a_01_0 = {53 68 65 6c 6c 45 78 65 63 75 74 65 41 } 		$a_01_1 = {55 52 4c 44 6f 77 6e 6c 6f 61 64 54 6f 46 69 6c 65 41 } 		$a_01_2 = {43 3a 5c 50 72 6f 67 72 61 6d 44 61 74 61 5c 73 76 63 68 6f 73 74 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*5+(#a_01_1  & 1)*5+(#a_01_2  & 1)*5) >=15
 
}

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

a5e118d8-b927-4387-93f8-c89a2c48e60a

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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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