YARA · Malpedia signator rules
MALPEDIA_Win_Herpes_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: Herpes.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-herpes-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Herpes_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "38c3cfb9-210b-5ee0-9cb8-caacfa12bb4c"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.herpes"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.herpes_auto.yar#L1-L121"
= "N/A"
= "f9348f3af61a3466303ab9a2e43310879d34aab298604f86ec8a030ec1f6ec4c"
= 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 = { 898554010000 6a24 b8???????? e8???????? 33db 83ec1c }
$sequence_1 = { e8???????? 8b0d???????? c70101000000 83c41c }
$sequence_2 = { 8d95c1feffff 52 ffd6 68???????? 8d85dafeffff 50 ffd6 }
$sequence_3 = { 56 52 8bc7 e8???????? eb5a 83fefe }
$sequence_4 = { 33db be10000000 53 39b5d4fcffff 7302 8bc7 }
$sequence_5 = { c68510fcffff00 e8???????? 83c40c 8d8d00fcffff 51 ff15???????? }
$sequence_6 = { 84c0 0f84a8000000 8db5c0fcffff e8???????? 8bce }
$sequence_7 = { 8975e8 895de4 c645d400 397db0 0f82cbfeffff 8b4d9c }
$sequence_8 = { 8dbd88fcffff e8???????? 84c0 0f8487000000 8b0d???????? }
$sequence_9 = { 8b4d9c 51 e8???????? 83c404 b8???????? 8d4dd4 }
condition:
7 of them and filesize < 319488
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 898554010000 6a24 b8???????? e8???????? 33db 83ec1c } | |
| $sequence_1 | hex | { e8???????? 8b0d???????? c70101000000 83c41c } | |
| $sequence_2 | hex | { 8d95c1feffff 52 ffd6 68???????? 8d85dafeffff 50 ffd6 } | |
| $sequence_3 | hex | { 56 52 8bc7 e8???????? eb5a 83fefe } | |
| $sequence_4 | hex | { 33db be10000000 53 39b5d4fcffff 7302 8bc7 } | |
| $sequence_5 | hex | { c68510fcffff00 e8???????? 83c40c 8d8d00fcffff 51 ff15???????? } | |
| $sequence_6 | hex | { 84c0 0f84a8000000 8db5c0fcffff e8???????? 8bce } | |
| $sequence_7 | hex | { 8975e8 895de4 c645d400 397db0 0f82cbfeffff 8b4d9c } | |
| $sequence_8 | hex | { 8dbd88fcffff e8???????? 84c0 0f8487000000 8b0d???????? } | |
| $sequence_9 | hex | { 8b4d9c 51 e8???????? 83c404 b8???????? 8d4dd4 } |
Condition
7 of them and filesize < 319488In plain words (Heuristic)
- The file must be smaller than 319488 (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: 38c3cfb9-210b-5ee0-9cb8-caacfa12bb4c
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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