Backdoor_Win32_Zegost_CO

YARA detection rule by roadwy

Backdoor:Win32/Zegost.CO,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00

rule Backdoor_Win32_Zegost_CO{
	meta:
		description = "Backdoor:Win32/Zegost.CO,SIGNATURE_TYPE_PEHSTR_EXT,03 00 03 00 03 00 00 "
		
	strings :
		$a_01_0 = {53 56 57 68 dc dd 1a 33 e8 } 		$a_01_1 = {8b f0 c1 ee 1b c1 e0 05 0b f0 0f b6 c1 8a 4a 01 03 c6 42 84 c9 75 e9 } 		$a_03_2 = {5c 5c 73 65 c7 85 ?? ?? ?? ?? 72 76 2e 74 c7 85 ?? ?? ?? ?? 78 74 00 78 89 4d a8 c7 45 ?? 69 63 65 73 c7 45 ?? 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*1+(#a_01_1  & 1)*1+(#a_03_2  & 1)*1) >=3
 
}

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

b5c15314-1273-4f9f-b244-5c739661e11c

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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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