Worm_Win32_Capside_ARR_MTB

YARA detection rule by roadwy

Worm:Win32/Capside.ARR!MTB,SIGNATURE_TYPE_PEHSTR_EXT,23 00 23 00 04 00 00

rule Worm_Win32_Capside_ARR_MTB{
	meta:
		description = "Worm:Win32/Capside.ARR!MTB,SIGNATURE_TYPE_PEHSTR_EXT,23 00 23 00 04 00 00 "
		
	strings :
		$a_01_0 = {56 74 78 20 3d 20 52 65 70 6c 61 63 65 28 56 74 78 2c 20 22 24 22 2c 20 43 68 72 28 33 34 29 29 3a 20 44 6f 63 75 6d 65 6e 74 2e 57 72 69 74 65 20 28 56 74 78 29 20 26 20 76 62 43 72 4c 66 20 26 20 43 61 70 73 69 64 65 } 		$a_01_1 = {45 63 20 3d 20 45 63 20 26 20 43 68 72 28 43 6b 20 58 6f 72 20 37 29 } 		$a_01_2 = {56 74 78 3d 22 3c 6f 62 6a 65 63 74 20 73 74 79 6c 65 3d 24 63 75 72 73 6f 72 3a 63 72 6f 73 73 2d 68 61 69 72 24 20 63 6c 61 73 73 69 64 3d 24 63 6c 73 69 64 3a 32 32 32 32 32 32 32 32 2d 32 32 32 32 2d 32 32 32 32 2d 32 32 32 32 24 20 20 43 4f 44 45 42 41 53 45 3d 24 6d 68 74 6d 6c 3a 22 26 56 70 74 26 22 21 66 69 6c 65 3a 2f 2f 2f 43 61 70 73 69 64 65 2e 65 78 65 24 3e 3c 2f 6f 62 6a 65 63 74 3e 22 } 		$a_01_3 = {43 61 70 73 69 64 65 2e 65 78 65 } 	condition:
		((#a_01_0  & 1)*10+(#a_01_1  & 1)*5+(#a_01_2  & 1)*12+(#a_01_3  & 1)*8) >=35
 
}

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

1df73727-42e3-48f5-880b-d15a7323d0ed

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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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