YARA · Malpedia signator rules
MALPEDIA_Win_Govrat_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: Govrat.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-govrat-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Govrat_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "b07b1562-1d63-5dd4-91cd-3f2d51f57604"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.govrat"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.govrat_auto.yar#L1-L131"
= "N/A"
= "21b5c6122229b659ecc3ebe130beeebd787ba55f551a29f3f1eb5cfbb2ba6e10"
= 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 = { 8d86f42b0300 50 6a04 58 e8???????? 8907 43 }
$sequence_1 = { 53 e8???????? 8b45cc 6aff 6a00 8d7e4c }
$sequence_2 = { 2b30 8933 8910 42 ff4d14 75c1 5f }
$sequence_3 = { 898624010000 5e 5b c3 55 8bec }
$sequence_4 = { e8???????? 83c420 50 e8???????? 837e1808 7202 8b1b }
$sequence_5 = { 3bf8 7216 8b4510 8908 8d57ff 8bc3 e8???????? }
$sequence_6 = { e8???????? 8b38 85ff 7405 e8???????? ff742410 8d442418 }
$sequence_7 = { 33c0 8a143b 47 40 8bc8 83e107 3a91ac9b4300 }
$sequence_8 = { c1fa02 83fa01 7344 8b36 8d5104 51 e8???????? }
$sequence_9 = { 8b39 0fb64701 8b4924 8955fc 0fb617 330491 }
condition:
7 of them and filesize < 761856
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 8d86f42b0300 50 6a04 58 e8???????? 8907 43 } | |
| $sequence_1 | hex | { 53 e8???????? 8b45cc 6aff 6a00 8d7e4c } | |
| $sequence_2 | hex | { 2b30 8933 8910 42 ff4d14 75c1 5f } | |
| $sequence_3 | hex | { 898624010000 5e 5b c3 55 8bec } | |
| $sequence_4 | hex | { e8???????? 83c420 50 e8???????? 837e1808 7202 8b1b } | |
| $sequence_5 | hex | { 3bf8 7216 8b4510 8908 8d57ff 8bc3 e8???????? } | |
| $sequence_6 | hex | { e8???????? 8b38 85ff 7405 e8???????? ff742410 8d442418 } | |
| $sequence_7 | hex | { 33c0 8a143b 47 40 8bc8 83e107 3a91ac9b4300 } | |
| $sequence_8 | hex | { c1fa02 83fa01 7344 8b36 8d5104 51 e8???????? } | |
| $sequence_9 | hex | { 8b39 0fb64701 8b4924 8955fc 0fb617 330491 } |
Condition
7 of them and filesize < 761856In plain words (Heuristic)
- The file must be smaller than 761856 (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: b07b1562-1d63-5dd4-91cd-3f2d51f57604
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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