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MALPEDIA_Win_Snifula_Auto

autogenerated rule brought to you by yara-signator

MalwareSnifulaMalpedia 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: Snifula.

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

Summary generated from the rule's metadata and condition.

Rule source

win-snifula-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Snifula_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "a4b2ce53-5ea1-5e0e-9fea-02a78338e8a2"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.snifula"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.snifula_auto.yar#L1-L134"
		license_url = "N/A"
		logic_hash = "7d31e41108e2ab7d945ef9825e8762a685b43c2aec97e795026a5cc2e8876fc6"
		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 = { 8933 c745fc01000000 5e 8b45fc c9 c20c00 55 }
		$sequence_1 = { e8???????? 8d83b80f0000 50 e8???????? 8b03 f70000000040 752b }
		$sequence_2 = { 0f8451ffffff 55 6a01 57 33f6 e8???????? 57 }
		$sequence_3 = { 830d????????ff 6a00 57 ffd6 a1???????? 69c0e8030000 50 }
		$sequence_4 = { 0f8439010000 6a04 33c0 55 896c2428 8d7c242c ab }
		$sequence_5 = { ba???????? 8bc6 e8???????? 85c0 7504 6a05 eb18 }
		$sequence_6 = { e8???????? 85c0 7420 ff7508 53 ff35???????? ff15???????? }
		$sequence_7 = { ff15???????? 3bc3 0f84ce010000 8d4dfc 51 6a30 8d4da8 }
		$sequence_8 = { a3???????? 83f805 7304 6a05 eb07 83f878 7608 }
		$sequence_9 = { 53 89460c a1???????? 56 894610 a1???????? 68???????? }

	condition:
		7 of them and filesize < 188416
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 8933 c745fc01000000 5e 8b45fc c9 c20c00 55 }
$sequence_1hex{ e8???????? 8d83b80f0000 50 e8???????? 8b03 f70000000040 752b }
$sequence_2hex{ 0f8451ffffff 55 6a01 57 33f6 e8???????? 57 }
$sequence_3hex{ 830d????????ff 6a00 57 ffd6 a1???????? 69c0e8030000 50 }
$sequence_4hex{ 0f8439010000 6a04 33c0 55 896c2428 8d7c242c ab }
$sequence_5hex{ ba???????? 8bc6 e8???????? 85c0 7504 6a05 eb18 }
$sequence_6hex{ e8???????? 85c0 7420 ff7508 53 ff35???????? ff15???????? }
$sequence_7hex{ ff15???????? 3bc3 0f84ce010000 8d4dfc 51 6a30 8d4da8 }
$sequence_8hex{ a3???????? 83f805 7304 6a05 eb07 83f878 7608 }
$sequence_9hex{ 53 89460c a1???????? 56 894610 a1???????? 68???????? }

Condition

7 of them and filesize < 188416

In plain words (Heuristic)

  • The file must be smaller than 188416 (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: a4b2ce53-5ea1-5e0e-9fea-02a78338e8a2

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