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MALPEDIA_Win_Onliner_Auto

autogenerated rule brought to you by yara-signator

MalwareOnlinerMalpedia 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: Onliner.

It defines 8 patterns (0 text, 8 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-onliner-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Onliner_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "fa3dd8d7-a5cc-58f8-ae0d-e850fb7db769"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.onliner"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.onliner_auto.yar#L1-L90"
		license_url = "N/A"
		logic_hash = "597deb9e2d0b7df5d7ff676ac825978c222dfe4f2de499345b8b00fb5671cd6a"
		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 = { 000c4b 41 001e 4b }
		$sequence_1 = { 001c87 42 002483 42 }
		$sequence_2 = { 0003 9a4100539a4100 879a4100d19a 41 }
		$sequence_3 = { 001c83 42 00a887420014 834200bc }
		$sequence_4 = { 001c99 41 004999 41 }
		$sequence_5 = { 0008 874200 fc 8242003c }
		$sequence_6 = { 0004054100d005 41 00d0 0541001505 }
		$sequence_7 = { 0000 55 8bec 83c4f0 }

	condition:
		7 of them and filesize < 1736704
}

Strings (8 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 000c4b 41 001e 4b }
$sequence_1hex{ 001c87 42 002483 42 }
$sequence_2hex{ 0003 9a4100539a4100 879a4100d19a 41 }
$sequence_3hex{ 001c83 42 00a887420014 834200bc }
$sequence_4hex{ 001c99 41 004999 41 }
$sequence_5hex{ 0008 874200 fc 8242003c }
$sequence_6hex{ 0004054100d005 41 00d0 0541001505 }
$sequence_7hex{ 0000 55 8bec 83c4f0 }

Condition

7 of them and filesize < 1736704

In plain words (Heuristic)

  • The file must be smaller than 1736704 (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: fa3dd8d7-a5cc-58f8-ae0d-e850fb7db769

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