Backdoor_Win32_Mostrar

YARA detection rule by roadwy

Backdoor:Win32/Mostrar,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00

rule Backdoor_Win32_Mostrar{
	meta:
		description = "Backdoor:Win32/Mostrar,SIGNATURE_TYPE_PEHSTR_EXT,05 00 05 00 05 00 00 "
		
	strings :
		$a_00_0 = {68 74 74 70 3a 2f 2f 61 63 63 65 73 6f 2e 6d 61 73 6d 69 6e 75 74 6f 73 2e 63 6f 6d } 		$a_00_1 = {68 74 74 70 3a 2f 2f 76 69 70 2e 65 73 63 72 69 74 6f 72 69 6f 61 63 74 69 76 6f 2e 63 6f 6d 2f 63 6f 6e 74 72 6f 6c 43 6f 6e 74 69 6e 75 69 64 61 64 2e 68 74 6d } 		$a_01_2 = {52 61 73 44 69 61 6c 41 } 		$a_00_3 = {45 46 36 44 36 41 45 33 2d 32 36 32 35 2d 34 30 44 36 2d 41 35 41 42 2d 39 32 30 44 46 44 32 44 41 46 38 43 } 		$a_00_4 = {56 65 6e 74 61 6e 61 20 4d 69 6e 69 64 69 61 6c 65 72 } 	condition:
		((#a_00_0  & 1)*1+(#a_00_1  & 1)*1+(#a_01_2  & 1)*1+(#a_00_3  & 1)*1+(#a_00_4  & 1)*1) >=5
 
}

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

38685572-45b5-42f3-b744-eef0e9bc904a

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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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