YARA · Malpedia signator rules
MALPEDIA_Win_Getmail_Auto
autogenerated rule brought to you by yara-signator
MalwareGetmailMalpedia 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: Getmail.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-getmail-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Getmail_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "374a7af9-c45a-5c1c-a8b8-7d78592921f8"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.getmail"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.getmail_auto.yar#L1-L130"
= "N/A"
= "2cea0f8bafb153941ddec4b250e7ff2492ee6e94cd595d83dce4950d94317a9d"
= 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 = { c744243801000000 8b44241c 889c2450040000 50 8b08 8d442428 51 }
$sequence_1 = { 5e 5d 5b 83c460 c3 49 51 }
$sequence_2 = { 50 56 ff5238 8b44241c 85c0 7409 8b0e }
$sequence_3 = { ba???????? 3bc3 7402 8bd0 8b4c2420 3bcb 7505 }
$sequence_4 = { 8b15???????? 89442420 894c2424 89542428 eb07 8d44241c 50 }
$sequence_5 = { bf???????? 88442430 83c9ff 33c0 6a01 f2ae }
$sequence_6 = { 895904 895908 89590c a1???????? 8d542444 50 }
$sequence_7 = { 52 c784249800000003000000 c784249c0000001e000130 c78424a00000001e000330 c78424a40000000300150c }
$sequence_8 = { 8b44241c 89742434 89742438 8b11 8974243c 8b742418 40 }
$sequence_9 = { 83c404 8b8c24d8000000 3bcb 7449 8a41ff 84c0 740b }
condition:
7 of them and filesize < 188416
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { c744243801000000 8b44241c 889c2450040000 50 8b08 8d442428 51 } | |
| $sequence_1 | hex | { 5e 5d 5b 83c460 c3 49 51 } | |
| $sequence_2 | hex | { 50 56 ff5238 8b44241c 85c0 7409 8b0e } | |
| $sequence_3 | hex | { ba???????? 3bc3 7402 8bd0 8b4c2420 3bcb 7505 } | |
| $sequence_4 | hex | { 8b15???????? 89442420 894c2424 89542428 eb07 8d44241c 50 } | |
| $sequence_5 | hex | { bf???????? 88442430 83c9ff 33c0 6a01 f2ae } | |
| $sequence_6 | hex | { 895904 895908 89590c a1???????? 8d542444 50 } | |
| $sequence_7 | hex | { 52 c784249800000003000000 c784249c0000001e000130 c78424a00000001e000330 c78424a40000000300150c } | |
| $sequence_8 | hex | { 8b44241c 89742434 89742438 8b11 8974243c 8b742418 40 } | |
| $sequence_9 | hex | { 83c404 8b8c24d8000000 3bcb 7449 8a41ff 84c0 740b } |
Condition
7 of them and filesize < 188416In plain words (Heuristic)
- The file must be smaller than 188416 (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: 374a7af9-c45a-5c1c-a8b8-7d78592921f8
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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