YARA · Malpedia signator rules
MALPEDIA_Win_Greenshaitan_Auto
autogenerated rule brought to you by yara-signator
MalwareGreenshaitanMalpedia 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: Greenshaitan.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-greenshaitan-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Greenshaitan_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "0b6c920b-61fa-5645-9e14-f59bb31cffc6"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.greenshaitan"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.greenshaitan_auto.yar#L1-L131"
= "N/A"
= "3b9467c3378280e2269ba3424b66c5d1482fc874345f811cd08ad75be75ca37f"
= 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 = { 837b4400 c744241400000000 0f8658010000 eb02 8bd9 8b7340 8b5344 }
$sequence_1 = { e9???????? 6a24 e8???????? 8bf0 83c404 89742418 c684249800000007 }
$sequence_2 = { e8???????? 55 6a00 b9???????? c784246802000003000000 e8???????? 89ac2460020000 }
$sequence_3 = { b9???????? e8???????? 3bc3 751a 83fe02 721a }
$sequence_4 = { 50 8b06 51 52 50 68???????? 8d74242c }
$sequence_5 = { 394608 741e 8b442410 8b4d08 40 89442410 3b4124 }
$sequence_6 = { 035318 3bc2 7209 e8???????? 8b4c2420 85c9 7404 }
$sequence_7 = { 51 e8???????? 83c404 8d4c2410 e8???????? 55 }
$sequence_8 = { 53 56 57 8bf9 8bda 57 e8???????? }
$sequence_9 = { 8d0c8d60ab6e00 8901 8305????????20 8d9000080000 eb2a c6400400 }
condition:
7 of them and filesize < 253952
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 837b4400 c744241400000000 0f8658010000 eb02 8bd9 8b7340 8b5344 } | |
| $sequence_1 | hex | { e9???????? 6a24 e8???????? 8bf0 83c404 89742418 c684249800000007 } | |
| $sequence_2 | hex | { e8???????? 55 6a00 b9???????? c784246802000003000000 e8???????? 89ac2460020000 } | |
| $sequence_3 | hex | { b9???????? e8???????? 3bc3 751a 83fe02 721a } | |
| $sequence_4 | hex | { 50 8b06 51 52 50 68???????? 8d74242c } | |
| $sequence_5 | hex | { 394608 741e 8b442410 8b4d08 40 89442410 3b4124 } | |
| $sequence_6 | hex | { 035318 3bc2 7209 e8???????? 8b4c2420 85c9 7404 } | |
| $sequence_7 | hex | { 51 e8???????? 83c404 8d4c2410 e8???????? 55 } | |
| $sequence_8 | hex | { 53 56 57 8bf9 8bda 57 e8???????? } | |
| $sequence_9 | hex | { 8d0c8d60ab6e00 8901 8305????????20 8d9000080000 eb2a c6400400 } |
Condition
7 of them and filesize < 253952In plain words (Heuristic)
- The file must be smaller than 253952 (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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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: 0b6c920b-61fa-5645-9e14-f59bb31cffc6
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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