BrowserModifier_MSIL_MediaArena_MTB_5

YARA detection rule by roadwy

BrowserModifier:MSIL/MediaArena!MTB,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0a 00 00

rule BrowserModifier_MSIL_MediaArena_MTB_5{
	meta:
		description = "BrowserModifier:MSIL/MediaArena!MTB,SIGNATURE_TYPE_PEHSTR_EXT,08 00 08 00 0a 00 00 "
		
	strings :
		$a_80_0 = {4f 66 66 65 72 53 63 72 65 65 6e } 		$a_80_1 = {6f 66 66 65 72 57 69 6e 64 6f 77 } 		$a_80_2 = {44 65 66 42 72 6f 77 73 65 72 } 		$a_80_3 = {49 44 53 5f 44 4f 57 4e 4c 4f 41 44 5f 42 52 4f 57 53 45 52 } 		$a_80_4 = {49 44 53 5f 44 45 46 41 55 4c 54 5f 42 52 4f 57 53 45 52 } 		$a_80_5 = {49 44 53 5f 45 44 47 45 5f 53 45 54 54 49 4e 47 53 5f 44 45 46 5f 42 52 4f 57 53 45 52 } 		$a_80_6 = {42 72 6f 77 73 65 72 4c 6f 61 64 65 64 57 69 74 68 55 72 6c } 		$a_80_7 = {43 4f 4c 4c 45 43 54 5f 44 41 54 41 5f 53 45 41 52 43 48 5f 45 4e 47 49 4e 45 } 		$a_80_8 = {55 6e 69 6e 73 74 2e 65 78 65 } 		$a_80_9 = {55 6e 69 6e 73 74 61 6c 6c 2e 65 78 65 } 	condition:
		((#a_80_0  & 1)*1+(#a_80_1  & 1)*1+(#a_80_2  & 1)*1+(#a_80_3  & 1)*1+(#a_80_4  & 1)*1+(#a_80_5  & 1)*1+(#a_80_6  & 1)*1+(#a_80_7  & 1)*1+(#a_80_8  & 1)*-100+(#a_80_9  & 1)*-100) >=8
 
}

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

a1e1097d-43e9-4b35-8095-fd3d5ef59317

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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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