Trojan_Win32_Formbook_SIBB_MTB

YARA detection rule by roadwy

Trojan:Win32/Formbook.SIBB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00

rule Trojan_Win32_Formbook_SIBB_MTB{
	meta:
		description = "Trojan:Win32/Formbook.SIBB!MTB,SIGNATURE_TYPE_PEHSTR_EXT,01 00 01 00 01 00 00 "
		
	strings :
		$a_03_0 = {31 c0 80 04 06 ?? [0-50] 8b 4d ?? 80 04 01 ?? [0-50] 8b 4d 90 1b 02 fe 04 01 [0-50] 8b 4d 90 1b 02 80 34 01 ?? [0-50] 8b 4d 90 1b 02 fe 0c 01 [0-50] 39 c3 74 ?? 8b 75 90 1b 02 40 eb ?? 8b 45 90 1b 02 ff e0 } 	condition:
		((#a_03_0  & 1)*1) >=1
 
}

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

795a24df-22e9-4aa3-8b2e-e6a12bffb476

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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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