zerox88_js3

YARA detection rule by Josh Berry · GPL-2.0

0x88 Exploit Kit Detection

rule zerox88_js3
{
meta:
	author = "Josh Berry"
	date = "2016-06-26"
	description = "0x88 Exploit Kit Detection"
	hash0 = "9df0ac2fa92e602ec11bac53555e2d82"
	sample_filetype = "js-html"
	yaragenerator = "https://github.com/Xen0ph0n/YaraGenerator"
strings:
	$string0 = " new ActiveXObject(szHTTP); "
	$string1 = " Csa2;"
	$string2 = "var ADO "
	$string3 = " new ActiveXObject(szOx88);"
	$string4 = " unescape("
	$string5 = "/test.exe"
	$string6 = " szEtYij;"
	$string7 = "var HTTP "
	$string8 = "%41%44%4F%44%42%2E"
	$string9 = "%4D%65%64%69%61"
	$string10 = "var szSRjq"
	$string11 = "%43%3A%5C%5C%50%72%6F%67%72%61%6D"
	$string12 = "var METHOD "
	$string13 = "ADO.Mode "
	$string14 = "%61%79%65%72"
	$string15 = "%2E%58%4D%4C%48%54%54%50"
	$string16 = " 7 - 6; HTTP.Open(METHOD, szURL, i-3); "
condition:
	16 of them
}

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

10a5c564-dede-42d1-b979-b6e3449a5425

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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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