suspicious_string_base_64_nop_sled_used_in_TIFF_overflow_CVE_2010_0188

YARA detection rule by @tylabs

Rule suspicious_string_base_64_nop_sled_used_in_TIFF_overflow_CVE_2010_0188 (No description metadata provided).

rule suspicious_string_base_64_nop_sled_used_in_TIFF_overflow_CVE_2010_0188 : hardened limited
{
	meta:
		is_exploit = true
		is_warning = false
		is_feature = false
		rank = 5
		revision = "1"
		date = "June 07 2020"
		author = "@tylabs"
		sigtype = "pdfexaminer_obfuscation"
		copyright = "Copyright 2020 tylabs.com. All rights reserved."
		desc = "suspicious.string base 64 nop sled used in TIFF overflow CVE-2010-0188"
		mitre = "T1203 T1204.002"

	strings:
		$h_raw1 = {4a 43 51 6b 4a 43 51 6b 4a 43 51 6b 4a 43 51 6b 4a 43 51 6b 4a 43 51 6b 4a 43 51 6b}
		$h_raw2 = {54 55 30 41 4b 67 41 41 49 44 67 4d 6b 41 79 51 44 4a 41 4d 6b 41 79 51 44 4a 41 4d 6b}
		$h_hex3 = { 4A [1-2] 43 [1-2] 51 [1-2] 6B [1-2] 4A [1-2] 43 [1-2] 51 [1-2] 6B}
		$h_raw4 = {2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34 2b 50 6a 34}

	condition:
		any of them
}

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

565e98b4-e092-4d72-906b-54215c806b14

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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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