YARA · Malpedia signator rules
MALPEDIA_Win_Hi_Zor_Rat_Auto
autogenerated rule brought to you by yara-signator
MalwareHi Zor RatMalpedia 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: Hi Zor Rat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-hi-zor-rat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Hi_Zor_Rat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "9b055cf4-4394-57ba-ba24-aea58c056a5f"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.hi_zor_rat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.hi_zor_rat_auto.yar#L1-L121"
= "N/A"
= "a2c1787ff03f77785f6ae2f12c5efdf5e6e326205f05a629cef8eff95a6daaf5"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 7cf1 33c0 66837445e402 40 83f80b 7cf4 33c0 }
$sequence_1 = { f7d3 23581c 0bde 03df 8b7010 8db433af0f7cff }
$sequence_2 = { 6804010000 8d8de4fdffff 56 51 }
$sequence_3 = { 85c0 0f8574ffffff 47 85ff }
$sequence_4 = { 898572ffffff 898576ffffff 89857affffff 6689857effffff c7458c10000000 ff15???????? e8???????? }
$sequence_5 = { 51 56 50 894510 e8???????? 8b5510 }
$sequence_6 = { 6a40 6a00 57 e8???????? 83c40c 6a00 8d4dfc }
$sequence_7 = { 6a00 6a05 51 ff15???????? 56 ff15???????? }
$sequence_8 = { 884612 33c0 8be5 5d }
$sequence_9 = { 83ec24 85c0 742d 68???????? 68???????? ff15???????? }
condition:
7 of them and filesize < 73728
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 7cf1 33c0 66837445e402 40 83f80b 7cf4 33c0 } | |
| $sequence_1 | hex | { f7d3 23581c 0bde 03df 8b7010 8db433af0f7cff } | |
| $sequence_2 | hex | { 6804010000 8d8de4fdffff 56 51 } | |
| $sequence_3 | hex | { 85c0 0f8574ffffff 47 85ff } | |
| $sequence_4 | hex | { 898572ffffff 898576ffffff 89857affffff 6689857effffff c7458c10000000 ff15???????? e8???????? } | |
| $sequence_5 | hex | { 51 56 50 894510 e8???????? 8b5510 } | |
| $sequence_6 | hex | { 6a40 6a00 57 e8???????? 83c40c 6a00 8d4dfc } | |
| $sequence_7 | hex | { 6a00 6a05 51 ff15???????? 56 ff15???????? } | |
| $sequence_8 | hex | { 884612 33c0 8be5 5d } | |
| $sequence_9 | hex | { 83ec24 85c0 742d 68???????? 68???????? ff15???????? } |
Condition
7 of them and filesize < 73728In plain words (Heuristic)
- The file must be smaller than 73728 (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: 9b055cf4-4394-57ba-ba24-aea58c056a5f
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
Related rules
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04
- MalwareMalpedia signator rules· Felix Bilstein - yara-signator at cocacoding dot com· 2026-05-04