YARA · Malpedia signator rules
MALPEDIA_Win_Anchormtea_Auto
autogenerated rule brought to you by yara-signator
MalwareAnchormteaMalpedia 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: Anchormtea.
It defines 15 patterns (0 text, 15 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-anchormtea-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Anchormtea_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "18d81673-6908-5576-8bf2-16c50223836a"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.anchormtea"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.anchormtea_auto.yar#L1-L154"
= "N/A"
= "423335a0396b30079660bf8c19aabbadc6d6e2c8e4cc037968b34528cc3c2347"
= 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 = { e9???????? f7d8 1bc0 83e002 }
$sequence_1 = { 85c0 0f899d000000 51 68???????? }
$sequence_2 = { 4489442430 488d542438 4533f6 458be9 4c89742440 4c8d4328 }
$sequence_3 = { 66c1e008 0fb7c8 0fb68580fcffff 0bc8 }
$sequence_4 = { b901000000 3bc1 0f44f9 4885db 7409 }
$sequence_5 = { 4885c9 740a ff15???????? 48897b40 488b4b30 }
$sequence_6 = { 0f8408ffffff 6808020000 6a00 56 }
$sequence_7 = { ffb564f7ffff 52 e8???????? 8b8d70f7ffff c645fc00 8b8584f7ffff }
$sequence_8 = { 492bed 48897e18 482be8 4c897e10 4903c5 488bcb }
$sequence_9 = { c70016000000 eb2a 488bcb 4c3bfe 720d }
$sequence_10 = { ba3c000000 488bce e8???????? 488bd8 4885c0 }
$sequence_11 = { 8bec 83ec1c 53 8bd9 b9feffff7f 8bc1 }
$sequence_12 = { 6a00 6a00 68???????? ffb51cf3ffff ffd7 }
$sequence_13 = { 899fb0020000 2bde 8987b4020000 5f }
$sequence_14 = { ba00040000 83f904 488d4df0 740e 4c8d0549600200 e8???????? }
condition:
7 of them and filesize < 839680
}
Strings (15 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { e9???????? f7d8 1bc0 83e002 } | |
| $sequence_1 | hex | { 85c0 0f899d000000 51 68???????? } | |
| $sequence_2 | hex | { 4489442430 488d542438 4533f6 458be9 4c89742440 4c8d4328 } | |
| $sequence_3 | hex | { 66c1e008 0fb7c8 0fb68580fcffff 0bc8 } | |
| $sequence_4 | hex | { b901000000 3bc1 0f44f9 4885db 7409 } | |
| $sequence_5 | hex | { 4885c9 740a ff15???????? 48897b40 488b4b30 } | |
| $sequence_6 | hex | { 0f8408ffffff 6808020000 6a00 56 } | |
| $sequence_7 | hex | { ffb564f7ffff 52 e8???????? 8b8d70f7ffff c645fc00 8b8584f7ffff } | |
| $sequence_8 | hex | { 492bed 48897e18 482be8 4c897e10 4903c5 488bcb } | |
| $sequence_9 | hex | { c70016000000 eb2a 488bcb 4c3bfe 720d } | |
| $sequence_10 | hex | { ba3c000000 488bce e8???????? 488bd8 4885c0 } | |
| $sequence_11 | hex | { 8bec 83ec1c 53 8bd9 b9feffff7f 8bc1 } | |
| $sequence_12 | hex | { 6a00 6a00 68???????? ffb51cf3ffff ffd7 } | |
| $sequence_13 | hex | { 899fb0020000 2bde 8987b4020000 5f } | |
| $sequence_14 | hex | { ba00040000 83f904 488d4df0 740e 4c8d0549600200 e8???????? } |
Condition
7 of them and filesize < 839680In plain words (Heuristic)
- The file must be smaller than 839680 (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: 18d81673-6908-5576-8bf2-16c50223836a
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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