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MALPEDIA_Win_Zeus_Sphinx_Auto

autogenerated rule brought to you by yara-signator

MalwareZeus SphinxMalpedia 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: Zeus Sphinx.

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

Summary generated from the rule's metadata and condition.

Rule source

win-zeus-sphinx-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Zeus_Sphinx_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "2971158e-43c7-599c-a8f0-006e83f3393f"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.zeus_sphinx"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.zeus_sphinx_auto.yar#L1-L162"
		license_url = "N/A"
		logic_hash = "002c140e4789a20845fa01c12dfbf259e54313649e048f059289e75b7090b2b5"
		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 = { 50 e8???????? 83c410 c785b8fdffff00000000 85c0 750d 83eb02 }
		$sequence_1 = { 50 e8???????? 83c410 e9???????? 0fb77712 f7c620000000 }
		$sequence_2 = { 52 53 57 e8???????? ff4750 }
		$sequence_3 = { 50 e8???????? 83c410 ff07 8b5708 8d04f500000000 }
		$sequence_4 = { 50 e8???????? 83c410 e8???????? 8d65f8 89f0 }
		$sequence_5 = { 50 e8???????? 83c410 eb31 833d????????00 7408 }
		$sequence_6 = { 50 e8???????? 83c410 eb6f 81f9ff0f0000 7e1e }
		$sequence_7 = { 50 e8???????? 83c410 eb32 83ec0c 53 }
		$sequence_8 = { 01fc eb98 035e14 8ade }
		$sequence_9 = { 0303 50 ff550c 8b3e }
		$sequence_10 = { 010d???????? 60 5a 98 }
		$sequence_11 = { 0162c9 cf 0c06 3c3e }
		$sequence_12 = { 003b c09bdbe23ea11c 695600663ec700 de07 }
		$sequence_13 = { 010c02 3bf7 0f85f0f50000 e9???????? }
		$sequence_14 = { 020a 42 1af6 af }
		$sequence_15 = { 0008 d7 9f b2d3 }

	condition:
		7 of them and filesize < 3268608
}

Strings (16 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 50 e8???????? 83c410 c785b8fdffff00000000 85c0 750d 83eb02 }
$sequence_1hex{ 50 e8???????? 83c410 e9???????? 0fb77712 f7c620000000 }
$sequence_2hex{ 52 53 57 e8???????? ff4750 }
$sequence_3hex{ 50 e8???????? 83c410 ff07 8b5708 8d04f500000000 }
$sequence_4hex{ 50 e8???????? 83c410 e8???????? 8d65f8 89f0 }
$sequence_5hex{ 50 e8???????? 83c410 eb31 833d????????00 7408 }
$sequence_6hex{ 50 e8???????? 83c410 eb6f 81f9ff0f0000 7e1e }
$sequence_7hex{ 50 e8???????? 83c410 eb32 83ec0c 53 }
$sequence_8hex{ 01fc eb98 035e14 8ade }
$sequence_9hex{ 0303 50 ff550c 8b3e }
$sequence_10hex{ 010d???????? 60 5a 98 }
$sequence_11hex{ 0162c9 cf 0c06 3c3e }
$sequence_12hex{ 003b c09bdbe23ea11c 695600663ec700 de07 }
$sequence_13hex{ 010c02 3bf7 0f85f0f50000 e9???????? }
$sequence_14hex{ 020a 42 1af6 af }
$sequence_15hex{ 0008 d7 9f b2d3 }

Condition

7 of them and filesize < 3268608

In plain words (Heuristic)

  • The file must be smaller than 3268608 (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: 2971158e-43c7-599c-a8f0-006e83f3393f

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