PolishBankRAT_fdsvc_xor_loop

YARA detection rule by Booz Allen Hamilton Dark Labs · GPL-2.0

Finds the custom xor decode loop for <PolishBankRAT_fdsvc>

rule PolishBankRAT_fdsvc_xor_loop 
{
	meta:

		author = "Booz Allen Hamilton Dark Labs"
		description = "Finds the custom xor decode loop for <PolishBankRAT_fdsvc>"

	strings:

		$loop = {0F B6 42 FF 48 8D 52 FF 30 42 01 FF CF 75 F1}

	condition:

		(uint16(0) == 0x5A4D and uint32(uint32(0x3C)) == 0x00004550) and $loop
}

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

ac1da11e-156a-4e32-b54a-cfbc04f6a2b5

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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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