YARA · Malpedia signator rules
MALPEDIA_Win_Mongall_Auto
autogenerated rule brought to you by yara-signator
MalwareMongallMalpedia 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: Mongall.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-mongall-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Mongall_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "03718745-4a20-5f11-8c49-ba07375d1462"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.mongall"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.mongall_auto.yar#L1-L122"
= "N/A"
= "d6d636cdb8a13c0a4cd956dbb80c2d5a73c159bd69bf56599b6f6938ee91dc2a"
= 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 = { 75ef 57 bf???????? e8???????? 6a7f }
$sequence_1 = { 6800000080 8d8df8feffff 51 ff15???????? 8bf8 83ffff 7413 }
$sequence_2 = { 83c404 5e b801000000 5b c3 83f806 7543 }
$sequence_3 = { 75f9 8bbd68d7ffff 2bc6 4f 8a4f01 47 }
$sequence_4 = { ffd7 a1???????? 3bc6 7415 8b4d0c 8b5508 56 }
$sequence_5 = { 85f6 7fdf eb07 838de4fdffffff 83bdccfdffff00 8b9de0fdffff 7457 }
$sequence_6 = { c745fc00000000 8b7df8 85ff 7509 }
$sequence_7 = { 7523 3985a0fdffff 741b ffb5a0fdffff 8d85e4fdffff 8d4df4 e8???????? }
$sequence_8 = { 0fbe8028e24000 83e00f eb02 33c0 }
$sequence_9 = { 33c9 68???????? 51 6a03 }
condition:
7 of them and filesize < 199680
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 75ef 57 bf???????? e8???????? 6a7f } | |
| $sequence_1 | hex | { 6800000080 8d8df8feffff 51 ff15???????? 8bf8 83ffff 7413 } | |
| $sequence_2 | hex | { 83c404 5e b801000000 5b c3 83f806 7543 } | |
| $sequence_3 | hex | { 75f9 8bbd68d7ffff 2bc6 4f 8a4f01 47 } | |
| $sequence_4 | hex | { ffd7 a1???????? 3bc6 7415 8b4d0c 8b5508 56 } | |
| $sequence_5 | hex | { 85f6 7fdf eb07 838de4fdffffff 83bdccfdffff00 8b9de0fdffff 7457 } | |
| $sequence_6 | hex | { c745fc00000000 8b7df8 85ff 7509 } | |
| $sequence_7 | hex | { 7523 3985a0fdffff 741b ffb5a0fdffff 8d85e4fdffff 8d4df4 e8???????? } | |
| $sequence_8 | hex | { 0fbe8028e24000 83e00f eb02 33c0 } | |
| $sequence_9 | hex | { 33c9 68???????? 51 6a03 } |
Condition
7 of them and filesize < 199680In plain words (Heuristic)
- The file must be smaller than 199680 (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: 03718745-4a20-5f11-8c49-ba07375d1462
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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