YARA · Malpedia signator rules
MALPEDIA_Win_Agfspy_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: Agfspy.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-agfspy-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Agfspy_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "3354a5d3-02b5-57cc-8609-7576fd817a74"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.agfspy"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.agfspy_auto.yar#L1-L132"
= "N/A"
= "38550b3fd6fc17deb203085aed2d62ac879ee866ac3497eca0694cbea2fdea30"
= 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 = { 7527 83fefd 7431 8a4101 3a4201 751a 83fefe }
$sequence_1 = { 8b7d08 33c9 8b4510 8b5d0c 897de4 c745f000000000 c7471000000000 }
$sequence_2 = { 83c404 8bce ff5204 8935???????? 8d4dd0 e8???????? 8bc6 }
$sequence_3 = { 33f6 8b9564ffffff 83fa10 722b 8b8d50ffffff 42 8bc1 }
$sequence_4 = { 833800 7469 8b512c 8b02 85c0 7e60 48 }
$sequence_5 = { c7464c00000000 5e c3 f7465000000004 74c2 8b4e28 }
$sequence_6 = { 8a461c 88421c 5e 8917 5f 5d c3 }
$sequence_7 = { 0fabd0 8801 8bce e9???????? 52 8d4e24 e8???????? }
$sequence_8 = { c745fc00000000 c745f001000000 8b07 6a00 8b4004 c70407???????? }
$sequence_9 = { c20800 83ec08 c6432c01 51 8bcb e8???????? 8ac8 }
condition:
7 of them and filesize < 1482752
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 7527 83fefd 7431 8a4101 3a4201 751a 83fefe } | |
| $sequence_1 | hex | { 8b7d08 33c9 8b4510 8b5d0c 897de4 c745f000000000 c7471000000000 } | |
| $sequence_2 | hex | { 83c404 8bce ff5204 8935???????? 8d4dd0 e8???????? 8bc6 } | |
| $sequence_3 | hex | { 33f6 8b9564ffffff 83fa10 722b 8b8d50ffffff 42 8bc1 } | |
| $sequence_4 | hex | { 833800 7469 8b512c 8b02 85c0 7e60 48 } | |
| $sequence_5 | hex | { c7464c00000000 5e c3 f7465000000004 74c2 8b4e28 } | |
| $sequence_6 | hex | { 8a461c 88421c 5e 8917 5f 5d c3 } | |
| $sequence_7 | hex | { 0fabd0 8801 8bce e9???????? 52 8d4e24 e8???????? } | |
| $sequence_8 | hex | { c745fc00000000 c745f001000000 8b07 6a00 8b4004 c70407???????? } | |
| $sequence_9 | hex | { c20800 83ec08 c6432c01 51 8bcb e8???????? 8ac8 } |
Condition
7 of them and filesize < 1482752In plain words (Heuristic)
- The file must be smaller than 1482752 (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: 3354a5d3-02b5-57cc-8609-7576fd817a74
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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