Trojan_Win32_Fsysna_GND_MTB

YARA detection rule by roadwy

Trojan:Win32/Fsysna.GND!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule Trojan_Win32_Fsysna_GND_MTB{
	meta:
		description = "Trojan:Win32/Fsysna.GND!MTB,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_01_0 = {73 65 72 76 65 72 2e 63 6f 6d 2f 76 69 72 75 73 2e 65 78 65 } 		$a_80_1 = {74 6d 70 6a 68 67 54 46 7a 74 66 5a 37 38 39 74 66 7a 54 44 74 } 		$a_01_2 = {76 69 72 75 73 2e 65 78 65 49 47 44 41 49 45 6a 68 4d 57 4e 4a 58 42 } 		$a_80_3 = {61 6e 6e 6f 66 61 69 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_80_1  & 1)*1+(#a_01_2  & 1)*1+(#a_80_3  & 1)*1) >=4
 
}

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

161ae8b9-0182-42a5-bf93-c06ffb8ddc3a

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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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