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MALPEDIA_Win_Dadstache_Auto

autogenerated rule brought to you by yara-signator

MalwareDadstacheMalpedia 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: Dadstache.

It defines 16 patterns (0 text, 16 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-dadstache-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Dadstache_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "e98094f0-0020-57dd-95bb-6582f11111c5"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.dadstache"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.dadstache_auto.yar#L1-L171"
		license_url = "N/A"
		logic_hash = "d4b7b2319b07081295c36fd104af9427fd846713a216bedec8ef501f72661951"
		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 = { 0f1145e8 0f85f2feffff 8b7df4 8bc7 c1e818 }
		$sequence_1 = { c6437401 50 53 c7070c000000 c7431400000000 c7431801000000 }
		$sequence_2 = { 75f9 2bf2 7429 90 6a00 }
		$sequence_3 = { 41 84c0 75f9 e9???????? 80f902 0f85f8000000 8b830c020000 }
		$sequence_4 = { 7454 6a00 ff35???????? ff15???????? 85c0 }
		$sequence_5 = { ffb01c020000 ff15???????? 85c0 0f8584000000 }
		$sequence_6 = { bb04000000 c1e108 8bf7 0bc8 c745d801000000 0fb64201 }
		$sequence_7 = { 57 8bf9 897df4 85db 7419 }
		$sequence_8 = { 8b0e 33d2 33db 8955f4 8b56f8 c745e400000000 }
		$sequence_9 = { 660f383ffc 0f28c7 894df8 660f73d808 660f383ff8 }
		$sequence_10 = { 56 ff7034 ffd7 8945f8 }
		$sequence_11 = { 0f44d8 c745f8616c4672 8d45e8 66c745fc6565 50 57 c645fe00 }
		$sequence_12 = { 7405 0d00020000 8d5de4 53 50 51 }
		$sequence_13 = { 8bec 81ec9c000000 56 57 648b3d30000000 33c0 c745806b006500 }
		$sequence_14 = { 57 8d3c16 897df4 85c9 }
		$sequence_15 = { 894ddc 53 56 57 85c9 0f8415010000 8b410c }

	condition:
		7 of them and filesize < 580608
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 0f1145e8 0f85f2feffff 8b7df4 8bc7 c1e818 }
$sequence_1hex{ c6437401 50 53 c7070c000000 c7431400000000 c7431801000000 }
$sequence_2hex{ 75f9 2bf2 7429 90 6a00 }
$sequence_3hex{ 41 84c0 75f9 e9???????? 80f902 0f85f8000000 8b830c020000 }
$sequence_4hex{ 7454 6a00 ff35???????? ff15???????? 85c0 }
$sequence_5hex{ ffb01c020000 ff15???????? 85c0 0f8584000000 }
$sequence_6hex{ bb04000000 c1e108 8bf7 0bc8 c745d801000000 0fb64201 }
$sequence_7hex{ 57 8bf9 897df4 85db 7419 }
$sequence_8hex{ 8b0e 33d2 33db 8955f4 8b56f8 c745e400000000 }
$sequence_9hex{ 660f383ffc 0f28c7 894df8 660f73d808 660f383ff8 }
$sequence_10hex{ 56 ff7034 ffd7 8945f8 }
$sequence_11hex{ 0f44d8 c745f8616c4672 8d45e8 66c745fc6565 50 57 c645fe00 }
$sequence_12hex{ 7405 0d00020000 8d5de4 53 50 51 }
$sequence_13hex{ 8bec 81ec9c000000 56 57 648b3d30000000 33c0 c745806b006500 }
$sequence_14hex{ 57 8d3c16 897df4 85c9 }
$sequence_15hex{ 894ddc 53 56 57 85c9 0f8415010000 8b410c }

Condition

7 of them and filesize < 580608

In plain words (Heuristic)

  • The file must be smaller than 580608 (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: e98094f0-0020-57dd-95bb-6582f11111c5

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