YARA · Malpedia signator rules
MALPEDIA_Win_Comlook_Auto
autogenerated rule brought to you by yara-signator
MalwareComlookMalpedia 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: Comlook.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-comlook-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Comlook_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "2b3d7016-3cfd-5cd3-b4c2-33ea82172f34"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.comlook"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.comlook_auto.yar#L1-L134"
= "N/A"
= "4e4f5dbf4914c1a3584dd149285bd789e3ba7925f5046364fe53452451d12bad"
= 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 = { e8???????? 83c408 85c0 746a 8bcd c744241400000000 3bcf }
$sequence_1 = { 8d8d70ffffff e8???????? 6a0d 68???????? 8d4d90 e8???????? 6a0a }
$sequence_2 = { e9???????? 8db5ecfeffff e9???????? 8db52cffffff e9???????? 8b85bcfdffff 83e001 }
$sequence_3 = { ff15???????? 83c404 3bf4 e8???????? 8b5508 c7425000000000 33c0 }
$sequence_4 = { e9???????? 8d7dd0 e9???????? 8d7dc4 e9???????? 8d4de0 e9???????? }
$sequence_5 = { 8b4d08 89816c030000 e9???????? 8b55f8 8995ecfeffff 8b85ecfeffff 8b8decfeffff }
$sequence_6 = { eb54 837d8c00 762e 8b4524 8b4d20 50 51 }
$sequence_7 = { a900040000 0f846a020000 83fd02 7d14 68eb050000 68???????? 68a0000000 }
$sequence_8 = { ffd2 8ac3 e9???????? 68???????? 8d4dd0 e8???????? 8d45a4 }
$sequence_9 = { e9???????? 83bd30ffffff00 747c 81bd30ffffff12030900 7470 8bf4 8d4dcc }
condition:
7 of them and filesize < 4553728
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { e8???????? 83c408 85c0 746a 8bcd c744241400000000 3bcf } | |
| $sequence_1 | hex | { 8d8d70ffffff e8???????? 6a0d 68???????? 8d4d90 e8???????? 6a0a } | |
| $sequence_2 | hex | { e9???????? 8db5ecfeffff e9???????? 8db52cffffff e9???????? 8b85bcfdffff 83e001 } | |
| $sequence_3 | hex | { ff15???????? 83c404 3bf4 e8???????? 8b5508 c7425000000000 33c0 } | |
| $sequence_4 | hex | { e9???????? 8d7dd0 e9???????? 8d7dc4 e9???????? 8d4de0 e9???????? } | |
| $sequence_5 | hex | { 8b4d08 89816c030000 e9???????? 8b55f8 8995ecfeffff 8b85ecfeffff 8b8decfeffff } | |
| $sequence_6 | hex | { eb54 837d8c00 762e 8b4524 8b4d20 50 51 } | |
| $sequence_7 | hex | { a900040000 0f846a020000 83fd02 7d14 68eb050000 68???????? 68a0000000 } | |
| $sequence_8 | hex | { ffd2 8ac3 e9???????? 68???????? 8d4dd0 e8???????? 8d45a4 } | |
| $sequence_9 | hex | { e9???????? 83bd30ffffff00 747c 81bd30ffffff12030900 7470 8bf4 8d4dcc } |
Condition
7 of them and filesize < 4553728In plain words (Heuristic)
- The file must be smaller than 4553728 (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: 2b3d7016-3cfd-5cd3-b4c2-33ea82172f34
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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