Trojan_WinNT_Systex_A

YARA detection rule by roadwy

Trojan:WinNT/Systex.A,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00

rule Trojan_WinNT_Systex_A{
	meta:
		description = "Trojan:WinNT/Systex.A,SIGNATURE_TYPE_PEHSTR_EXT,04 00 04 00 04 00 00 "
		
	strings :
		$a_02_0 = {9c 60 b9 76 01 00 00 0f 32 a3 ?? ?? ?? ?? 61 9d 83 3d ?? ?? ?? ?? 06 73 ?? bb ?? ?? ?? ?? c7 45 fc 09 00 00 00 } 		$a_02_1 = {83 f8 02 75 ?? c7 05 ?? ?? ?? ?? 21 02 00 00 c3 83 f8 01 75 0b c7 05 ?? ?? ?? ?? 25 02 00 00 c3 85 c0 75 33 c7 05 ?? ?? ?? ?? 12 02 00 00 c3 83 f8 06 } 		$a_00_2 = {53 4f 47 4f 55 45 58 50 4c 4f 52 45 52 2e 45 58 45 } 		$a_00_3 = {47 52 45 45 4e 42 52 4f 57 53 45 52 2e 45 58 45 } 	condition:
		((#a_02_0  & 1)*1+(#a_02_1  & 1)*1+(#a_00_2  & 1)*1+(#a_00_3  & 1)*1) >=4
 
}

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

80fd585d-3724-447c-8f18-9825096ad4e4

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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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