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MALPEDIA_Win_Snappy_Client_Auto

autogenerated rule brought to you by yara-signator

MalwareSnappy ClientMalpedia 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: Snappy Client.

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

Summary generated from the rule's metadata and condition.

Rule source

win-snappy-client-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Snappy_Client_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "83f27e97-2259-59df-9f1e-70ff961a2f9a"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.snappy_client"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.snappy_client_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "b2c5bb56f240c76bee33ebf3792ebf1b230895a24c38b64edc4f476901ebc8c5"
		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 = { eb12 8d4608 8bcb 50 8d442414 50 e8???????? }
		$sequence_1 = { ff762c 894df8 ff15???????? 8bc8 83c408 85c9 751c }
		$sequence_2 = { eb06 ff75e0 ff7624 8b4e08 e8???????? 8b4e08 8b01 }
		$sequence_3 = { ff7514 8bf1 ff7510 8975fc e8???????? ff7508 83a6a800000000 }
		$sequence_4 = { ebf8 55 8bec 51 8365fc00 56 8b7508 }
		$sequence_5 = { e9???????? 8d8d10ffffff e9???????? 8d4dcc e9???????? 8d8d00ffffff e9???????? }
		$sequence_6 = { ff15???????? 85c0 7428 8b9f84000000 8bb780000000 eb16 837e0803 }
		$sequence_7 = { ff7110 e8???????? 83c410 5d c20400 8d412c c6410d00 }
		$sequence_8 = { ff750c 895dd4 03fb 8bcf 897de0 8d4738 8945d8 }
		$sequence_9 = { ff15???????? 50 ff15???????? a3???????? c605????????00 57 8b7d18 }

	condition:
		7 of them and filesize < 7315456
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ eb12 8d4608 8bcb 50 8d442414 50 e8???????? }
$sequence_1hex{ ff762c 894df8 ff15???????? 8bc8 83c408 85c9 751c }
$sequence_2hex{ eb06 ff75e0 ff7624 8b4e08 e8???????? 8b4e08 8b01 }
$sequence_3hex{ ff7514 8bf1 ff7510 8975fc e8???????? ff7508 83a6a800000000 }
$sequence_4hex{ ebf8 55 8bec 51 8365fc00 56 8b7508 }
$sequence_5hex{ e9???????? 8d8d10ffffff e9???????? 8d4dcc e9???????? 8d8d00ffffff e9???????? }
$sequence_6hex{ ff15???????? 85c0 7428 8b9f84000000 8bb780000000 eb16 837e0803 }
$sequence_7hex{ ff7110 e8???????? 83c410 5d c20400 8d412c c6410d00 }
$sequence_8hex{ ff750c 895dd4 03fb 8bcf 897de0 8d4738 8945d8 }
$sequence_9hex{ ff15???????? 50 ff15???????? a3???????? c605????????00 57 8b7d18 }

Condition

7 of them and filesize < 7315456

In plain words (Heuristic)

  • The file must be smaller than 7315456 (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: 83f27e97-2259-59df-9f1e-70ff961a2f9a

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