WaterBug_fa_malware

YARA detection rule by Symantec Security Response · NOASSERTION

Symantec Waterbug Attack - FA malware variant

rule WaterBug_wipbot_2013_core {
	meta:
		description = "Symantec Waterbug Attack - Trojan.Wipbot core + core; garbage appended data (PDF Exploit leftovers) + wipbot dropper; fake AdobeRd32 Error"
		author = "Symantec Security Response"
		date = "2015-01-22"
		modified = "2023-01-27"
		reference = "http://t.co/rF35OaAXrl"
		id = "6521e319-41f0-47c1-bfe8-b0f3b7460d83"
	strings:
		$code1 = { 89 47 0C C7 47 10 90 C2 04 00 C7 47 14 90 C2 10 00 C7 47 18 90 90 60 68 89 4F 1C C7 47 20 90 90 90 B8 89 4F 24 C7 47 28 90 FF D0 61 C7 47 2C 90 C2 04 00}
		$code2 = { 85 C0 75 25 8B 0B BF ?? ?? ?? ?? EB 17 69 D7 0D 66 19 00 8D BA 5F F3 6E 3C 89 FE C1 EE 10 89 F2 30 14 01 40 3B 43 04 72 E4}
		$code3 = {90 90 90 ?? B9 00 4D 5A 90 00 03 00 00 00 82 04} $code4 = {55 89 E5 5D C3 55 89 E5 83 EC 18 8B 45 08 85 C0}
	condition:
		uint16(0) == 0x5A4D  and (($code1 or $code2) or ($code3 and $code4))
}

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

92439b42-bb1e-47c3-8ad9-695b3a3776d8

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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

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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.

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

[[ currentRule.title ]]

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