YARA · Malpedia signator rules
MALPEDIA_Win_Ratankbapos_Auto
autogenerated rule brought to you by yara-signator
MalwareRatankbaposMalpedia 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: Ratankbapos.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-ratankbapos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Ratankbapos_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "98477565-9980-5358-b7f5-1a0def6b1050"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.ratankbapos"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.ratankbapos_auto.yar#L1-L123"
= "N/A"
= "00eb98b82d4844d3802e8954effb204297741740e3d71070c31870329e1fd40a"
= 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 = { 743b 48 753d 8b4508 50 a3???????? ff15???????? }
$sequence_1 = { 7229 f3a5 ff249590490010 8bc7 }
$sequence_2 = { 33f6 85c0 7409 50 e8???????? 83c404 }
$sequence_3 = { ebab c745e4a4e10010 817de4b0e10010 7311 }
$sequence_4 = { 0fbe84c160010110 6a07 c1f804 59 8985a0fdffff }
$sequence_5 = { 8a8c181d010000 888808350110 40 ebe6 ff35???????? ff15???????? 85c0 }
$sequence_6 = { 8bff 56 57 33ff ffb7c03d0110 ff15???????? 8987c03d0110 }
$sequence_7 = { 56 8d34c5303c0110 833e00 7513 50 e8???????? 59 }
$sequence_8 = { 8975e4 33c0 39b810360110 0f8491000000 ff45e4 }
$sequence_9 = { 5d c3 8b04cd74300110 5d c3 0544ffffff 6a0e }
condition:
7 of them and filesize < 327680
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 743b 48 753d 8b4508 50 a3???????? ff15???????? } | |
| $sequence_1 | hex | { 7229 f3a5 ff249590490010 8bc7 } | |
| $sequence_2 | hex | { 33f6 85c0 7409 50 e8???????? 83c404 } | |
| $sequence_3 | hex | { ebab c745e4a4e10010 817de4b0e10010 7311 } | |
| $sequence_4 | hex | { 0fbe84c160010110 6a07 c1f804 59 8985a0fdffff } | |
| $sequence_5 | hex | { 8a8c181d010000 888808350110 40 ebe6 ff35???????? ff15???????? 85c0 } | |
| $sequence_6 | hex | { 8bff 56 57 33ff ffb7c03d0110 ff15???????? 8987c03d0110 } | |
| $sequence_7 | hex | { 56 8d34c5303c0110 833e00 7513 50 e8???????? 59 } | |
| $sequence_8 | hex | { 8975e4 33c0 39b810360110 0f8491000000 ff45e4 } | |
| $sequence_9 | hex | { 5d c3 8b04cd74300110 5d c3 0544ffffff 6a0e } |
Condition
7 of them and filesize < 327680In plain words (Heuristic)
- The file must be smaller than 327680 (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: 98477565-9980-5358-b7f5-1a0def6b1050
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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