YARA · Malpedia signator rules
MALPEDIA_Win_Roopy_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: Roopy.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-roopy-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Roopy_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "8ad890a7-fe09-5d64-94e8-5e14b31e42fd"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.roopy"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.roopy_auto.yar#L1-L123"
= "N/A"
= "0c33c8132093324a21cc2614922acb7981dc22fe88a6ee22cf9e952384a3f6a2"
= 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 = { 8b8594fdffff 89424c 8b8588fdffff e8???????? 8b45f8 dd5828 8b45f8 }
$sequence_1 = { 8945d4 c745d000000000 8d55c8 b901000000 }
$sequence_2 = { 85c9 7403 8b49fc 807c08ff5c 7504 b001 eb02 }
$sequence_3 = { 6689501a 8b45e4 89580e 8b45f4 83785c00 770b }
$sequence_4 = { 7418 8b0424 8b0c24 85c9 7403 8b49fc }
$sequence_5 = { 8b45f4 8d5034 8b4df4 8b412c }
$sequence_6 = { 89c8 8d7de8 89c6 b910000000 f3a4 }
$sequence_7 = { 8d4de0 6631d2 8d85d8feffff e8???????? 8d45e0 30c9 }
$sequence_8 = { 8b0a ff5170 89c2 8b45e4 895012 8b45f4 c7406000000000 }
$sequence_9 = { b8???????? 6681380000 0f8563000000 8d7600 8b4304 3db1d70000 7c36 }
condition:
7 of them and filesize < 739328
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b8594fdffff 89424c 8b8588fdffff e8???????? 8b45f8 dd5828 8b45f8 } | |
| $sequence_1 | hex | { 8945d4 c745d000000000 8d55c8 b901000000 } | |
| $sequence_2 | hex | { 85c9 7403 8b49fc 807c08ff5c 7504 b001 eb02 } | |
| $sequence_3 | hex | { 6689501a 8b45e4 89580e 8b45f4 83785c00 770b } | |
| $sequence_4 | hex | { 7418 8b0424 8b0c24 85c9 7403 8b49fc } | |
| $sequence_5 | hex | { 8b45f4 8d5034 8b4df4 8b412c } | |
| $sequence_6 | hex | { 89c8 8d7de8 89c6 b910000000 f3a4 } | |
| $sequence_7 | hex | { 8d4de0 6631d2 8d85d8feffff e8???????? 8d45e0 30c9 } | |
| $sequence_8 | hex | { 8b0a ff5170 89c2 8b45e4 895012 8b45f4 c7406000000000 } | |
| $sequence_9 | hex | { b8???????? 6681380000 0f8563000000 8d7600 8b4304 3db1d70000 7c36 } |
Condition
7 of them and filesize < 739328In plain words (Heuristic)
- The file must be smaller than 739328 (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: 8ad890a7-fe09-5d64-94e8-5e14b31e42fd
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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