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MALPEDIA_Win_Naplistener_Auto

autogenerated rule brought to you by yara-signator

MalwareNaplistenerMalpedia signator rulesCreative Commons Attribution-ShareAlike 4.0Compiles with YARA-X
Author
Felix Bilstein - yara-signator at cocacoding dot com
Date
2026-05-04
Modified
2026-05-18
Score / Quality
75 / 75

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Naplistener.

It defines 10 patterns (0 text, 10 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-naplistener-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Naplistener_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a3d7d9df-de3a-516e-b81c-c3cfa9ffc96f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.naplistener"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.naplistener_auto.yar#L1-L117"
		license_url = "N/A"
		logic_hash = "2510a61e053aa5f210d742699c248976270de6ea89c8a2ddd06d921dbbb47612"
		score = 75
		quality = 75
		tags = "FILE"
		version = "1"
		tool = "yara-signator v0.6.0"
		signator_config = "callsandjumps;datarefs;binvalue"
		malpedia_rule_date = "20260422"
		malpedia_hash = "a182e35da64e6d71cb55f125c4d4225196523f14"
		malpedia_version = "20260504"
		malpedia_license = "CC BY-SA 4.0"
		malpedia_sharing = "TLP:WHITE"

	strings:
		$sequence_0 = { 18 8d01000001 1316 1116 16 110a }
		$sequence_1 = { 38bbfdffff 1314 00 7251010070 }
		$sequence_2 = { 7285000070 0c 06 6f0e00000a }
		$sequence_3 = { 110c 110b 1110 6f2600000a }
		$sequence_4 = { 6f2600000a 00 1106 6f2700000a 732800000a 1311 1111 }
		$sequence_5 = { 00 de3a 00 1107 14 fe01 }
		$sequence_6 = { 6f2700000a 1307 1107 09 16 09 8e }
		$sequence_7 = { 110e 1110 18 8d01000001 }
		$sequence_8 = { 281900000a 1109 6f1a00000a 130a 7283000070 1105 6f1b00000a }
		$sequence_9 = { 06 6f3b00000a 16 fe01 }

	condition:
		7 of them and filesize < 50176
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 18 8d01000001 1316 1116 16 110a }
$sequence_1hex{ 38bbfdffff 1314 00 7251010070 }
$sequence_2hex{ 7285000070 0c 06 6f0e00000a }
$sequence_3hex{ 110c 110b 1110 6f2600000a }
$sequence_4hex{ 6f2600000a 00 1106 6f2700000a 732800000a 1311 1111 }
$sequence_5hex{ 00 de3a 00 1107 14 fe01 }
$sequence_6hex{ 6f2700000a 1307 1107 09 16 09 8e }
$sequence_7hex{ 110e 1110 18 8d01000001 }
$sequence_8hex{ 281900000a 1109 6f1a00000a 130a 7283000070 1105 6f1b00000a }
$sequence_9hex{ 06 6f3b00000a 16 fe01 }

Condition

7 of them and filesize < 50176

In plain words (Heuristic)

  • The file must be smaller than 50176 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

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References

Licence & attribution

Author: Felix Bilstein - yara-signator at cocacoding dot com

Source repository: Malpedia signator rules @ c901f97b7d

Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)

Original rule

Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.

Rule id: a3d7d9df-de3a-516e-b81c-c3cfa9ffc96f

Metadata

version1
toolyara-signator v0.6.0
signator_configcallsandjumps;datarefs;binvalue
malpedia_rule_date20260422
malpedia_hasha182e35da64e6d71cb55f125c4d4225196523f14
malpedia_version20260504
malpedia_licenseCC BY-SA 4.0
malpedia_sharingTLP:WHITE

Tags:FILE