Backdoor_Win32_Wykcores_A

YARA detection rule by roadwy

Backdoor:Win32/Wykcores.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00

rule Backdoor_Win32_Wykcores_A{
	meta:
		description = "Backdoor:Win32/Wykcores.A,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {43 83 c6 48 83 c7 44 83 fb 04 75 b6 33 c0 89 45 0c 33 c0 89 45 14 33 c0 89 45 1c b0 01 81 c4 34 02 00 00 5d 5f 5e 5b c3 } 		$a_01_1 = {8b cb 8a 55 b8 d2 e2 30 10 43 40 83 fb 10 75 f0 } 		$a_01_2 = {53 4f 46 54 57 41 52 45 5c 43 6c 61 73 73 65 73 5c 53 78 6c } 	condition:
		((#a_01_0  & 1)*2+(#a_01_1  & 1)*2+(#a_01_2  & 1)*1) >=3
 
}

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

d25b1548-d0c3-418e-9e11-3bd124bf6fcd

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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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