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MALPEDIA_Win_Gozi_Auto

autogenerated rule brought to you by yara-signator

MalwareGoziMalpedia 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 / 73

What this rule detects

autogenerated rule brought to you by yara-signator

Associated malware family: Gozi.

It defines 32 patterns (0 text, 32 hex, 0 regex).

Summary generated from the rule's metadata and condition.

Rule source

win-gozi-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Gozi_Auto : FILE
{
	meta:
		description = "autogenerated rule brought to you by yara-signator"
		author = "Felix Bilstein - yara-signator at cocacoding dot com"
		id = "9aa10efd-66c7-5e31-9851-226298d161da"
		date = "2026-05-04"
		modified = "2026-05-18"
		reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.gozi"
		source_url = "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gozi_auto.yar#L1-L307"
		license_url = "N/A"
		logic_hash = "dac9feb06c684c42ada85b54c60ce95ba475c3e84edfabcc82c47570c2d13d67"
		score = 75
		quality = 73
		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 = { 45 43 6f 6d 7061 63743200 c808bf35 }
		$sequence_1 = { 6a00 6a00 8b4d18 e8???????? 8b45e0 50 }
		$sequence_2 = { 94 6e 8ee1 54 257c693a5c 48 fb }
		$sequence_3 = { c7400402000000 e9???????? 817df800001000 7607 c745f800001000 }
		$sequence_4 = { 8bf0 8b450c 8b4010 83660c00 894604 }
		$sequence_5 = { ff7514 ff7510 ff750c ff7508 8d8715050000 ff10 }
		$sequence_6 = { 7447 56 53 ff15???????? 8945d8 56 }
		$sequence_7 = { e8???????? 6af4 dbe9 68912b4384 2383e08985e4 0572b6e2f4 fd }
		$sequence_8 = { f6c5fe 0fbed0 4a d2ca 86f2 }
		$sequence_9 = { e8???????? 6a00 8d879a040000 50 ff750c e8???????? }
		$sequence_10 = { 36110b 33745571 de7e75 cd18 4a 51 d2b8c512294e }
		$sequence_11 = { 85c0 7417 8b55f0 8b75f0 2bd1 }
		$sequence_12 = { 86f2 84c1 0fadea 86f2 0fafd5 }
		$sequence_13 = { 8a11 3a140e 750e 47 41 }
		$sequence_14 = { b606 d2ca 0fafd5 8af4 a1???????? }
		$sequence_15 = { 7502 eb20 8d458c 50 }
		$sequence_16 = { 741f 0faccef6 0fbdd5 0fc0d6 }
		$sequence_17 = { ff15???????? 8945e4 57 68???????? e8???????? }
		$sequence_18 = { ff15???????? 85c0 7454 83a5d0fdffff00 6800040000 e8???????? 59 }
		$sequence_19 = { c22800 55 8bec 56 8b752c 57 }
		$sequence_20 = { e9???????? 395dec 0f8415010000 c745fc02000000 c745f801000000 e9???????? }
		$sequence_21 = { 743b 0fc0d6 80ca72 b6e6 }
		$sequence_22 = { 0fbdd5 0ad0 bef48d351e b6f6 c0caaa }
		$sequence_23 = { 41 b87e8da638 e022 3a56b9 }
		$sequence_24 = { 8d45e0 50 68???????? 6802000080 ff15???????? 85c0 7517 }
		$sequence_25 = { 036890 2b02 9a102a6715fb53 31db b0a6 46 }
		$sequence_26 = { 8c6a38 55 f79bfe7ca80d a7 ad b710 }
		$sequence_27 = { e9???????? ff75d8 ff7514 8d87f2030000 ff10 0bc0 }
		$sequence_28 = { fb 5c 3c32 7e02 19c1 a6 3327 }
		$sequence_29 = { 83c40c c20400 6a0c 68???????? e8???????? }
		$sequence_30 = { ff7618 8f461c 8b13 8b12 }
		$sequence_31 = { 0fbdf1 4e d2ee b6d6 }

	condition:
		7 of them and filesize < 568320
}

Strings (32 patterns)

IdentifierTypeValueModifiers
$sequence_0hex{ 45 43 6f 6d 7061 63743200 c808bf35 }
$sequence_1hex{ 6a00 6a00 8b4d18 e8???????? 8b45e0 50 }
$sequence_2hex{ 94 6e 8ee1 54 257c693a5c 48 fb }
$sequence_3hex{ c7400402000000 e9???????? 817df800001000 7607 c745f800001000 }
$sequence_4hex{ 8bf0 8b450c 8b4010 83660c00 894604 }
$sequence_5hex{ ff7514 ff7510 ff750c ff7508 8d8715050000 ff10 }
$sequence_6hex{ 7447 56 53 ff15???????? 8945d8 56 }
$sequence_7hex{ e8???????? 6af4 dbe9 68912b4384 2383e08985e4 0572b6e2f4 fd }
$sequence_8hex{ f6c5fe 0fbed0 4a d2ca 86f2 }
$sequence_9hex{ e8???????? 6a00 8d879a040000 50 ff750c e8???????? }
$sequence_10hex{ 36110b 33745571 de7e75 cd18 4a 51 d2b8c512294e }
$sequence_11hex{ 85c0 7417 8b55f0 8b75f0 2bd1 }
$sequence_12hex{ 86f2 84c1 0fadea 86f2 0fafd5 }
$sequence_13hex{ 8a11 3a140e 750e 47 41 }
$sequence_14hex{ b606 d2ca 0fafd5 8af4 a1???????? }
$sequence_15hex{ 7502 eb20 8d458c 50 }
$sequence_16hex{ 741f 0faccef6 0fbdd5 0fc0d6 }
$sequence_17hex{ ff15???????? 8945e4 57 68???????? e8???????? }
$sequence_18hex{ ff15???????? 85c0 7454 83a5d0fdffff00 6800040000 e8???????? 59 }
$sequence_19hex{ c22800 55 8bec 56 8b752c 57 }
$sequence_20hex{ e9???????? 395dec 0f8415010000 c745fc02000000 c745f801000000 e9???????? }
$sequence_21hex{ 743b 0fc0d6 80ca72 b6e6 }
$sequence_22hex{ 0fbdd5 0ad0 bef48d351e b6f6 c0caaa }
$sequence_23hex{ 41 b87e8da638 e022 3a56b9 }
$sequence_24hex{ 8d45e0 50 68???????? 6802000080 ff15???????? 85c0 7517 }
$sequence_25hex{ 036890 2b02 9a102a6715fb53 31db b0a6 46 }
$sequence_26hex{ 8c6a38 55 f79bfe7ca80d a7 ad b710 }
$sequence_27hex{ e9???????? ff75d8 ff7514 8d87f2030000 ff10 0bc0 }
$sequence_28hex{ fb 5c 3c32 7e02 19c1 a6 3327 }
$sequence_29hex{ 83c40c c20400 6a0c 68???????? e8???????? }
$sequence_30hex{ ff7618 8f461c 8b13 8b12 }
$sequence_31hex{ 0fbdf1 4e d2ee b6d6 }

Condition

7 of them and filesize < 568320

In plain words (Heuristic)

  • The file must be smaller than 568320 (a cheap guard that skips large files).
  • At least 7 patterns in the rule must match.

Test this rule in your browser

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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.

Open in editor

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: 9aa10efd-66c7-5e31-9851-226298d161da

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