YARA · Malpedia signator rules
MALPEDIA_Win_Miniasp_Auto
autogenerated rule brought to you by yara-signator
MalwareMiniaspMalpedia 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: Miniasp.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-miniasp-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Miniasp_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "6cfa02ba-df4d-55d2-bb63-74f1f94f15c2"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.miniasp"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.miniasp_auto.yar#L1-L129"
= "N/A"
= "1ee105f2133cec94270e0aea10fd8c08f641fd091b26e4be16436f63bb16389c"
= 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 = { 8b85e4feffff 8985e0feffff 8b85e4feffff 8a00 8885dffeffff ff85e4feffff 80bddffeffff00 }
$sequence_1 = { 2b45fc 48 3d00080000 7e07 }
$sequence_2 = { 894ddc 8365ec00 8365fc00 8b45dc 83b81804000000 7515 c745e4b4d84000 }
$sequence_3 = { 59 8d7de4 8b7508 33c0 f3a7 7408 83c8ff }
$sequence_4 = { 735e 8b45f4 0345e4 8b4dfc 8a00 }
$sequence_5 = { 83c40c 8d45d8 50 e8???????? 59 8b4588 8b4804 }
$sequence_6 = { c645fb00 8365f400 8a45fb d0e8 8845fb e9???????? c9 }
$sequence_7 = { 8b45ec ffb098000000 6a00 8b45ec ffb0a4000000 8b45ec ffb094000000 }
$sequence_8 = { 48 8945cc 8b45cc 8a4001 8845cb ff45cc 807dcb00 }
$sequence_9 = { 75e3 8b8574ffffff 2b8570ffffff 898568ffffff 8b8568ffffff 8945a4 837da402 }
condition:
7 of them and filesize < 139264
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8b85e4feffff 8985e0feffff 8b85e4feffff 8a00 8885dffeffff ff85e4feffff 80bddffeffff00 } | |
| $sequence_1 | hex | { 2b45fc 48 3d00080000 7e07 } | |
| $sequence_2 | hex | { 894ddc 8365ec00 8365fc00 8b45dc 83b81804000000 7515 c745e4b4d84000 } | |
| $sequence_3 | hex | { 59 8d7de4 8b7508 33c0 f3a7 7408 83c8ff } | |
| $sequence_4 | hex | { 735e 8b45f4 0345e4 8b4dfc 8a00 } | |
| $sequence_5 | hex | { 83c40c 8d45d8 50 e8???????? 59 8b4588 8b4804 } | |
| $sequence_6 | hex | { c645fb00 8365f400 8a45fb d0e8 8845fb e9???????? c9 } | |
| $sequence_7 | hex | { 8b45ec ffb098000000 6a00 8b45ec ffb0a4000000 8b45ec ffb094000000 } | |
| $sequence_8 | hex | { 48 8945cc 8b45cc 8a4001 8845cb ff45cc 807dcb00 } | |
| $sequence_9 | hex | { 75e3 8b8574ffffff 2b8570ffffff 898568ffffff 8b8568ffffff 8945a4 837da402 } |
Condition
7 of them and filesize < 139264In plain words (Heuristic)
- The file must be smaller than 139264 (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: 6cfa02ba-df4d-55d2-bb63-74f1f94f15c2
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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