YARA · Malpedia signator rules
MALPEDIA_Win_Pteranodon_Auto
autogenerated rule brought to you by yara-signator
MalwarePteranodonMalpedia 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: Pteranodon.
It defines 16 patterns (0 text, 16 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-pteranodon-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Pteranodon_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "e93fb407-90ad-50a7-a006-e52b137b4dd4"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.pteranodon"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.pteranodon_auto.yar#L1-L179"
= "N/A"
= "737916054e2b7b0c780e102a99de5e901b3673ecd792a81881d53a8e87b91d79"
= 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 = { e8???????? ff75b8 8b5db4 33c0 53 668906 ff75c0 }
$sequence_1 = { 8b049db8690310 894dfc 837c0118ff 7543 57 e8???????? }
$sequence_2 = { 0f8530ffffff b8ffff0000 0fb7c0 0fb7f0 8b55e8 83fa10 0f8288000000 }
$sequence_3 = { e8???????? 83c8ff e9???????? 6a10 }
$sequence_4 = { c1f906 56 57 6bf830 8b048db8690310 894df0 8b4c3818 }
$sequence_5 = { 25f0070000 660f28a040314300 660f28b8302d4300 660f54f0 660f5cc6 }
$sequence_6 = { ffd6 ffb5f8fdffff ffd6 33c0 e9???????? 6a00 6a00 }
$sequence_7 = { 0f57c0 6a01 50 0f1145e8 }
$sequence_8 = { 660f56fa 660fc5cc03 25ff000000 83c001 25fe010000 f20f593c8538f34200 660f122c8538f34200 }
$sequence_9 = { 751b 33c9 380d00000000 740c 8d5101 8a01 }
$sequence_10 = { 8d8d08f9ffff e8???????? 8d8da8f8ffff c645fc31 51 8bd0 }
$sequence_11 = { 8d4ea0 e8???????? 8b4690 8b4004 c74430903c0d0310 }
$sequence_12 = { 51 8bce e8???????? 83c408 56 ff15???????? 57 }
$sequence_13 = { 57 68???????? ff35???????? 8d45e4 8bf9 }
$sequence_14 = { c1f806 6bc938 8b0485e0874300 0fb6440828 83e040 5d c3 }
$sequence_15 = { c645fc07 8b85d4f8ffff c7851cf9ffff0f000000 c78518f9ffff00000000 c68508f9ffff00 83f810 7213 }
condition:
7 of them and filesize < 499712
}
Strings (16 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? ff75b8 8b5db4 33c0 53 668906 ff75c0 } | |
| $sequence_1 | hex | { 8b049db8690310 894dfc 837c0118ff 7543 57 e8???????? } | |
| $sequence_2 | hex | { 0f8530ffffff b8ffff0000 0fb7c0 0fb7f0 8b55e8 83fa10 0f8288000000 } | |
| $sequence_3 | hex | { e8???????? 83c8ff e9???????? 6a10 } | |
| $sequence_4 | hex | { c1f906 56 57 6bf830 8b048db8690310 894df0 8b4c3818 } | |
| $sequence_5 | hex | { 25f0070000 660f28a040314300 660f28b8302d4300 660f54f0 660f5cc6 } | |
| $sequence_6 | hex | { ffd6 ffb5f8fdffff ffd6 33c0 e9???????? 6a00 6a00 } | |
| $sequence_7 | hex | { 0f57c0 6a01 50 0f1145e8 } | |
| $sequence_8 | hex | { 660f56fa 660fc5cc03 25ff000000 83c001 25fe010000 f20f593c8538f34200 660f122c8538f34200 } | |
| $sequence_9 | hex | { 751b 33c9 380d00000000 740c 8d5101 8a01 } | |
| $sequence_10 | hex | { 8d8d08f9ffff e8???????? 8d8da8f8ffff c645fc31 51 8bd0 } | |
| $sequence_11 | hex | { 8d4ea0 e8???????? 8b4690 8b4004 c74430903c0d0310 } | |
| $sequence_12 | hex | { 51 8bce e8???????? 83c408 56 ff15???????? 57 } | |
| $sequence_13 | hex | { 57 68???????? ff35???????? 8d45e4 8bf9 } | |
| $sequence_14 | hex | { c1f806 6bc938 8b0485e0874300 0fb6440828 83e040 5d c3 } | |
| $sequence_15 | hex | { c645fc07 8b85d4f8ffff c7851cf9ffff0f000000 c78518f9ffff00000000 c68508f9ffff00 83f810 7213 } |
Condition
7 of them and filesize < 499712In plain words (Heuristic)
- The file must be smaller than 499712 (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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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
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: e93fb407-90ad-50a7-a006-e52b137b4dd4
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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