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MALPEDIA_Win_Rtpos_Auto

autogenerated rule brought to you by yara-signator

MalwareRtposMalpedia 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: Rtpos.

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

Summary generated from the rule's metadata and condition.

Rule source

win-rtpos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rtpos_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "1a9d47b5-5d7d-5030-bf52-58b9b5481b2a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.rtpos"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rtpos_auto.yar#L1-L121"
		license_url = "N/A"
		logic_hash = "1b740bbcbb141f3c925558daa597c413a5797ae3e810355523b771c8b72d9296"
		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 = { c745dce4ad4200 8945bc 33db 385d18 8945c0 }
		$sequence_1 = { 8d044a 8945bc 8b4dbc 0fb611 83fa3d }
		$sequence_2 = { 6a05 8b4dec e8???????? 8b45ec 8b10 8b4dec }
		$sequence_3 = { c1f806 033485b86a4300 f6462d01 7414 e8???????? c70016000000 }
		$sequence_4 = { 68e8030000 ff15???????? 8d45e0 50 8b4ddc }
		$sequence_5 = { 53 56 57 8d1c85306a4300 8b03 8b15???????? 83cfff }
		$sequence_6 = { 8b4dbc 034db4 894dbc eb0c 8b55b4 }
		$sequence_7 = { c1ff06 e8???????? 83e03f 6bc030 59 59 0304bdb86a4300 }
		$sequence_8 = { 8b4dac e8???????? 83f801 7509 c745b001000000 eb34 8b4da8 }
		$sequence_9 = { 8b4820 51 8b95f0fdffff 8b421c }

	condition:
		7 of them and filesize < 507904
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ c745dce4ad4200 8945bc 33db 385d18 8945c0 }
$sequence_1hex{ 8d044a 8945bc 8b4dbc 0fb611 83fa3d }
$sequence_2hex{ 6a05 8b4dec e8???????? 8b45ec 8b10 8b4dec }
$sequence_3hex{ c1f806 033485b86a4300 f6462d01 7414 e8???????? c70016000000 }
$sequence_4hex{ 68e8030000 ff15???????? 8d45e0 50 8b4ddc }
$sequence_5hex{ 53 56 57 8d1c85306a4300 8b03 8b15???????? 83cfff }
$sequence_6hex{ 8b4dbc 034db4 894dbc eb0c 8b55b4 }
$sequence_7hex{ c1ff06 e8???????? 83e03f 6bc030 59 59 0304bdb86a4300 }
$sequence_8hex{ 8b4dac e8???????? 83f801 7509 c745b001000000 eb34 8b4da8 }
$sequence_9hex{ 8b4820 51 8b95f0fdffff 8b421c }

Condition

7 of them and filesize < 507904

In plain words (Heuristic)

  • The file must be smaller than 507904 (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: 1a9d47b5-5d7d-5030-bf52-58b9b5481b2a

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