YARA · Malpedia signator rules
MALPEDIA_Win_Gozi_Auto
autogenerated rule brought to you by yara-signator
- 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:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9aa10efd-66c7-5e31-9851-226298d161da"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.gozi"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.gozi_auto.yar#L1-L307"
= "N/A"
= "dac9feb06c684c42ada85b54c60ce95ba475c3e84edfabcc82c47570c2d13d67"
= 75
= 73
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "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)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 45 43 6f 6d 7061 63743200 c808bf35 } | |
| $sequence_1 | hex | { 6a00 6a00 8b4d18 e8???????? 8b45e0 50 } | |
| $sequence_2 | hex | { 94 6e 8ee1 54 257c693a5c 48 fb } | |
| $sequence_3 | hex | { c7400402000000 e9???????? 817df800001000 7607 c745f800001000 } | |
| $sequence_4 | hex | { 8bf0 8b450c 8b4010 83660c00 894604 } | |
| $sequence_5 | hex | { ff7514 ff7510 ff750c ff7508 8d8715050000 ff10 } | |
| $sequence_6 | hex | { 7447 56 53 ff15???????? 8945d8 56 } | |
| $sequence_7 | hex | { e8???????? 6af4 dbe9 68912b4384 2383e08985e4 0572b6e2f4 fd } | |
| $sequence_8 | hex | { f6c5fe 0fbed0 4a d2ca 86f2 } | |
| $sequence_9 | hex | { e8???????? 6a00 8d879a040000 50 ff750c e8???????? } | |
| $sequence_10 | hex | { 36110b 33745571 de7e75 cd18 4a 51 d2b8c512294e } | |
| $sequence_11 | hex | { 85c0 7417 8b55f0 8b75f0 2bd1 } | |
| $sequence_12 | hex | { 86f2 84c1 0fadea 86f2 0fafd5 } | |
| $sequence_13 | hex | { 8a11 3a140e 750e 47 41 } | |
| $sequence_14 | hex | { b606 d2ca 0fafd5 8af4 a1???????? } | |
| $sequence_15 | hex | { 7502 eb20 8d458c 50 } | |
| $sequence_16 | hex | { 741f 0faccef6 0fbdd5 0fc0d6 } | |
| $sequence_17 | hex | { ff15???????? 8945e4 57 68???????? e8???????? } | |
| $sequence_18 | hex | { ff15???????? 85c0 7454 83a5d0fdffff00 6800040000 e8???????? 59 } | |
| $sequence_19 | hex | { c22800 55 8bec 56 8b752c 57 } | |
| $sequence_20 | hex | { e9???????? 395dec 0f8415010000 c745fc02000000 c745f801000000 e9???????? } | |
| $sequence_21 | hex | { 743b 0fc0d6 80ca72 b6e6 } | |
| $sequence_22 | hex | { 0fbdd5 0ad0 bef48d351e b6f6 c0caaa } | |
| $sequence_23 | hex | { 41 b87e8da638 e022 3a56b9 } | |
| $sequence_24 | hex | { 8d45e0 50 68???????? 6802000080 ff15???????? 85c0 7517 } | |
| $sequence_25 | hex | { 036890 2b02 9a102a6715fb53 31db b0a6 46 } | |
| $sequence_26 | hex | { 8c6a38 55 f79bfe7ca80d a7 ad b710 } | |
| $sequence_27 | hex | { e9???????? ff75d8 ff7514 8d87f2030000 ff10 0bc0 } | |
| $sequence_28 | hex | { fb 5c 3c32 7e02 19c1 a6 3327 } | |
| $sequence_29 | hex | { 83c40c c20400 6a0c 68???????? e8???????? } | |
| $sequence_30 | hex | { ff7618 8f461c 8b13 8b12 } | |
| $sequence_31 | hex | { 0fbdf1 4e d2ee b6d6 } |
Condition
7 of them and filesize < 568320In 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
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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)
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
| 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 |
Tags:FILE
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