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MALPEDIA_Win_Sidewinder_Auto

autogenerated rule brought to you by yara-signator

MalwareSidewinderMalpedia 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: Sidewinder.

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

Summary generated from the rule's metadata and condition.

Rule source

win-sidewinder-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Sidewinder_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9e9df07d-bb59-5ce6-ba37-a892c60d7d33"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.sidewinder"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.sidewinder_auto.yar#L1-L133"
		license_url = "N/A"
		logic_hash = "ca9735d92e59cc94af52ead8b46d5b078a3580a8819717e09ce10ee8673415d4"
		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 = { eb04 8365bc00 8d4de0 e8???????? 8d45e0 50 8b4508 }
		$sequence_1 = { 8365b400 68???????? 8b45ec 8b00 ff75ec ff506c dbe2 }
		$sequence_2 = { 8d4598 50 a1???????? 8b00 ff35???????? ff5064 dbe2 }
		$sequence_3 = { 83a5f0feffff00 ff7510 8b8514ffffff 8b00 ffb514ffffff ff5034 dbe2 }
		$sequence_4 = { e8???????? 8945b0 eb04 8365b000 837de000 7516 8d45e0 }
		$sequence_5 = { 0fbf05???????? 50 ff35???????? e8???????? ff7004 e8???????? 8bd0 }
		$sequence_6 = { 8b45e4 8b00 ff75e4 ff501c dbe2 898548ffffff 83bd48ffffff00 }
		$sequence_7 = { e8???????? 660fb630 6683e603 666bf610 0f8007010000 ff75dc }
		$sequence_8 = { eb0a c78574ffffff1c8c4400 8b8574ffffff 8b00 894594 837de000 7519 }
		$sequence_9 = { e8???????? 6a00 6a7f 6a01 6a11 8d45b8 50 }

	condition:
		7 of them and filesize < 679936
}

Strings (10 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ eb04 8365bc00 8d4de0 e8???????? 8d45e0 50 8b4508 }
$sequence_1hex{ 8365b400 68???????? 8b45ec 8b00 ff75ec ff506c dbe2 }
$sequence_2hex{ 8d4598 50 a1???????? 8b00 ff35???????? ff5064 dbe2 }
$sequence_3hex{ 83a5f0feffff00 ff7510 8b8514ffffff 8b00 ffb514ffffff ff5034 dbe2 }
$sequence_4hex{ e8???????? 8945b0 eb04 8365b000 837de000 7516 8d45e0 }
$sequence_5hex{ 0fbf05???????? 50 ff35???????? e8???????? ff7004 e8???????? 8bd0 }
$sequence_6hex{ 8b45e4 8b00 ff75e4 ff501c dbe2 898548ffffff 83bd48ffffff00 }
$sequence_7hex{ e8???????? 660fb630 6683e603 666bf610 0f8007010000 ff75dc }
$sequence_8hex{ eb0a c78574ffffff1c8c4400 8b8574ffffff 8b00 894594 837de000 7519 }
$sequence_9hex{ e8???????? 6a00 6a7f 6a01 6a11 8d45b8 50 }

Condition

7 of them and filesize < 679936

In plain words (Heuristic)

  • The file must be smaller than 679936 (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: 9e9df07d-bb59-5ce6-ba37-a892c60d7d33

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

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