Trojan_Win32_GuLoader_RCW_MTB

YARA detection rule by roadwy

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

rule Trojan_Win32_GuLoader_RCW_MTB{
	meta:
		description = "Trojan:Win32/GuLoader.RCW!MTB,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_81_0 = {6d 65 72 6b 61 6e 74 69 6c 69 73 65 72 69 6e 67 65 72 6e 65 5c 69 72 61 73 5c 61 6c 66 65 64 61 6e 73 } 		$a_81_1 = {70 72 6f 74 65 72 61 6e 64 72 6f 75 73 6c 79 5c 4d 75 6c 64 65 64 65 5c } 		$a_81_2 = {5c 62 72 65 64 64 65 6d 69 6e 75 74 74 65 72 6e 65 73 2e 69 6e 69 } 		$a_81_3 = {25 63 68 6f 72 69 6f 63 61 70 69 6c 6c 61 72 69 73 25 5c 6c 69 73 74 65 72 69 6f 73 69 73 } 		$a_81_4 = {41 62 6f 72 74 67 72 75 70 70 65 72 31 36 34 5c 54 72 61 65 6e 65 74 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 ]]

11029d20-30ab-4111-9a34-8d8cb445a1e3

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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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