Backdoor_Win32_Zegost_EG_bit

YARA detection rule by roadwy

Backdoor:Win32/Zegost.EG!bit,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Backdoor_Win32_Zegost_EG_bit{
	meta:
		description = "Backdoor:Win32/Zegost.EG!bit,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {8b 45 10 25 ?? ?? ?? ?? 99 b9 ?? ?? ?? ?? f7 f9 [0-10] 88 55 fc c7 45 f8 00 00 00 00 eb ?? 8b 55 f8 83 c2 01 89 55 f8 8b 45 f8 3b 45 0c 73 ?? 8b 4d 08 8a 11 32 55 fc 8b 45 08 88 10 8b 4d 08 8a 11 02 55 fc 8b 45 08 88 10 8b 4d 08 } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

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

9c528816-fd94-45ba-bd1d-b9bfe549d19a

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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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