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MALPEDIA_Win_Ratankbapos_Auto

autogenerated rule brought to you by yara-signator

MalwareRatankbaposMalpedia 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: Ratankbapos.

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

Summary generated from the rule's metadata and condition.

Rule source

win-ratankbapos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ratankbapos_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "98477565-9980-5358-b7f5-1a0def6b1050"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.ratankbapos"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ratankbapos_auto.yar#L1-L123"
		license_url = "N/A"
		logic_hash = "00eb98b82d4844d3802e8954effb204297741740e3d71070c31870329e1fd40a"
		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 = { 743b 48 753d 8b4508 50 a3???????? ff15???????? }
		$sequence_1 = { 7229 f3a5 ff249590490010 8bc7 }
		$sequence_2 = { 33f6 85c0 7409 50 e8???????? 83c404 }
		$sequence_3 = { ebab c745e4a4e10010 817de4b0e10010 7311 }
		$sequence_4 = { 0fbe84c160010110 6a07 c1f804 59 8985a0fdffff }
		$sequence_5 = { 8a8c181d010000 888808350110 40 ebe6 ff35???????? ff15???????? 85c0 }
		$sequence_6 = { 8bff 56 57 33ff ffb7c03d0110 ff15???????? 8987c03d0110 }
		$sequence_7 = { 56 8d34c5303c0110 833e00 7513 50 e8???????? 59 }
		$sequence_8 = { 8975e4 33c0 39b810360110 0f8491000000 ff45e4 }
		$sequence_9 = { 5d c3 8b04cd74300110 5d c3 0544ffffff 6a0e }

	condition:
		7 of them and filesize < 327680
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 743b 48 753d 8b4508 50 a3???????? ff15???????? }
$sequence_1hex{ 7229 f3a5 ff249590490010 8bc7 }
$sequence_2hex{ 33f6 85c0 7409 50 e8???????? 83c404 }
$sequence_3hex{ ebab c745e4a4e10010 817de4b0e10010 7311 }
$sequence_4hex{ 0fbe84c160010110 6a07 c1f804 59 8985a0fdffff }
$sequence_5hex{ 8a8c181d010000 888808350110 40 ebe6 ff35???????? ff15???????? 85c0 }
$sequence_6hex{ 8bff 56 57 33ff ffb7c03d0110 ff15???????? 8987c03d0110 }
$sequence_7hex{ 56 8d34c5303c0110 833e00 7513 50 e8???????? 59 }
$sequence_8hex{ 8975e4 33c0 39b810360110 0f8491000000 ff45e4 }
$sequence_9hex{ 5d c3 8b04cd74300110 5d c3 0544ffffff 6a0e }

Condition

7 of them and filesize < 327680

In plain words (Heuristic)

  • The file must be smaller than 327680 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 98477565-9980-5358-b7f5-1a0def6b1050

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