Trojan_Win32_GuLoader_RCI_MTB

YARA detection rule by roadwy

Trojan:Win32/GuLoader.RCI!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Trojan_Win32_GuLoader_RCI_MTB{
	meta:
		description = "Trojan:Win32/GuLoader.RCI!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {67 72 61 64 69 6f 6d 65 74 65 72 5c 6a 75 6c 6f 69 64 5c 73 6f 64 61 6c 69 74 68 69 74 65 } 		$a_81_1 = {25 68 61 72 76 65 6e 64 65 73 25 5c 6c 79 6b 6b 65 66 6c 65 6c 73 65 6e } 		$a_81_2 = {41 6e 61 64 61 72 6b 6f 20 50 65 74 72 6f 6c 65 75 6d 20 43 6f 72 70 6f 72 61 74 69 6f 6e } 		$a_81_3 = {42 72 69 73 74 6f 6c 2d 4d 79 65 72 73 20 53 71 75 69 62 62 20 43 6f 6d 70 61 6e 79 } 		$a_81_4 = {75 72 70 72 65 6d 69 65 72 65 73 2e 65 78 65 } 	condition:
		((#a_81_0  & 1)*1+(#a_81_1  & 1)*1+(#a_81_2  & 1)*1+(#a_81_3  & 1)*1+(#a_81_4  & 1)*1) >=5
 
}

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

747074cd-2a84-4d57-8cb2-0cf9571d0be8

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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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