YARA · Malpedia signator rules
MALPEDIA_Win_Rtpos_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 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Rtpos.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-rtpos-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rtpos_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "1a9d47b5-5d7d-5030-bf52-58b9b5481b2a"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.rtpos"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rtpos_auto.yar#L1-L121"
= "N/A"
= "1b740bbcbb141f3c925558daa597c413a5797ae3e810355523b771c8b72d9296"
= 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 = { c745dce4ad4200 8945bc 33db 385d18 8945c0 }
$sequence_1 = { 8d044a 8945bc 8b4dbc 0fb611 83fa3d }
$sequence_2 = { 6a05 8b4dec e8???????? 8b45ec 8b10 8b4dec }
$sequence_3 = { c1f806 033485b86a4300 f6462d01 7414 e8???????? c70016000000 }
$sequence_4 = { 68e8030000 ff15???????? 8d45e0 50 8b4ddc }
$sequence_5 = { 53 56 57 8d1c85306a4300 8b03 8b15???????? 83cfff }
$sequence_6 = { 8b4dbc 034db4 894dbc eb0c 8b55b4 }
$sequence_7 = { c1ff06 e8???????? 83e03f 6bc030 59 59 0304bdb86a4300 }
$sequence_8 = { 8b4dac e8???????? 83f801 7509 c745b001000000 eb34 8b4da8 }
$sequence_9 = { 8b4820 51 8b95f0fdffff 8b421c }
condition:
7 of them and filesize < 507904
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c745dce4ad4200 8945bc 33db 385d18 8945c0 } | |
| $sequence_1 | hex | { 8d044a 8945bc 8b4dbc 0fb611 83fa3d } | |
| $sequence_2 | hex | { 6a05 8b4dec e8???????? 8b45ec 8b10 8b4dec } | |
| $sequence_3 | hex | { c1f806 033485b86a4300 f6462d01 7414 e8???????? c70016000000 } | |
| $sequence_4 | hex | { 68e8030000 ff15???????? 8d45e0 50 8b4ddc } | |
| $sequence_5 | hex | { 53 56 57 8d1c85306a4300 8b03 8b15???????? 83cfff } | |
| $sequence_6 | hex | { 8b4dbc 034db4 894dbc eb0c 8b55b4 } | |
| $sequence_7 | hex | { c1ff06 e8???????? 83e03f 6bc030 59 59 0304bdb86a4300 } | |
| $sequence_8 | hex | { 8b4dac e8???????? 83f801 7509 c745b001000000 eb34 8b4da8 } | |
| $sequence_9 | hex | { 8b4820 51 8b95f0fdffff 8b421c } |
Condition
7 of them and filesize < 507904In plain words (Heuristic)
- The file must be smaller than 507904 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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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: 1a9d47b5-5d7d-5030-bf52-58b9b5481b2a
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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