Skip to content

YARA · Malpedia signator rules

MALPEDIA_Win_Getmypass_Auto

autogenerated rule brought to you by yara-signator

MalwareGetmypassMalpedia 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: Getmypass.

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

Summary generated from the rule's metadata and condition.

Rule source

win-getmypass-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Getmypass_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "43e07883-9436-5127-bff0-b4844120de44"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.getmypass"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.getmypass_auto.yar#L1-L126"
		license_url = "N/A"
		logic_hash = "1514c3628fbfee491bf6737b96c8cd49f88ce7d269aed90821e72c7b8e7a9228"
		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 = { 55 8bec a1???????? 50 8b0d???????? 51 8b15???????? }
		$sequence_1 = { 8b11 8b4508 50 8b4a10 ffd1 68280a0000 8d95d8f5ffff }
		$sequence_2 = { 8b45f4 8b4d08 0fb71441 83fa2c 7538 33c0 }
		$sequence_3 = { 83c404 0fb6c8 85c9 0f8430010000 8b5508 52 e8???????? }
		$sequence_4 = { c785ccfdffff00000000 83bdbcfdffff00 0f86d6000000 83bdccfdffff00 7414 8b8dccfdffff 81c100400600 }
		$sequence_5 = { 8a45ff eb26 8b450c 50 8b4d08 }
		$sequence_6 = { 898dccfdffff eb0c 8b95b0fdffff 8995ccfdffff c7859cfdffff00000000 }
		$sequence_7 = { 8d95d8f5ffff 52 e8???????? 83c408 68280a0000 8d85d8f5ffff }
		$sequence_8 = { 7505 e9???????? c785acfdffff00000000 6a0a ff15???????? }
		$sequence_9 = { 8b550c 2b55a4 89550c eb19 8b45a4 8b4d08 8d1441 }

	condition:
		7 of them and filesize < 49152
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 55 8bec a1???????? 50 8b0d???????? 51 8b15???????? }
$sequence_1hex{ 8b11 8b4508 50 8b4a10 ffd1 68280a0000 8d95d8f5ffff }
$sequence_2hex{ 8b45f4 8b4d08 0fb71441 83fa2c 7538 33c0 }
$sequence_3hex{ 83c404 0fb6c8 85c9 0f8430010000 8b5508 52 e8???????? }
$sequence_4hex{ c785ccfdffff00000000 83bdbcfdffff00 0f86d6000000 83bdccfdffff00 7414 8b8dccfdffff 81c100400600 }
$sequence_5hex{ 8a45ff eb26 8b450c 50 8b4d08 }
$sequence_6hex{ 898dccfdffff eb0c 8b95b0fdffff 8995ccfdffff c7859cfdffff00000000 }
$sequence_7hex{ 8d95d8f5ffff 52 e8???????? 83c408 68280a0000 8d85d8f5ffff }
$sequence_8hex{ 7505 e9???????? c785acfdffff00000000 6a0a ff15???????? }
$sequence_9hex{ 8b550c 2b55a4 89550c eb19 8b45a4 8b4d08 8d1441 }

Condition

7 of them and filesize < 49152

In plain words (Heuristic)

  • The file must be smaller than 49152 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.

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: 43e07883-9436-5127-bff0-b4844120de44

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