YARA · SEKOIA.IO Community
SEKOIA_Apt_Unk_Batcopier_Strings
Detects BatCopier variant
- Author
- Sekoia.io
- Date
- 2024-09-06
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Detects BatCopier variant
It defines 3 patterns (3 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
apt-unk-batcopier-strings.yarDetection Rule License 1.1
rule SEKOIA_Apt_Unk_Batcopier_Strings : FILE
{
meta:
= "Detects BatCopier variant"
= "Sekoia.io"
= "eb76bbd0-a722-4fec-a4a7-c48c70a1880b"
= "2024-09-06"
= "2024-12-19"
= "https://www.seqrite.com/blog/operation-oxidovy-sophisticated-malware-campaign-targets-czech-officials-using-nato-themed-decoys/"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/apt_unk_batcopier_strings.yar#L1-L18"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "0007d6d00d5b8db048456bb566ef9ed4516c4e1b392cc73c40396785ba885f55"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$ = "@echo off"
$ = "echo F|xcopy"
$ = "attrib +r +s +h"
condition:
all of them and filesize < 1KB
}
Strings (3 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | text | "@echo off" | |
| $ | text | "echo F|xcopy" | |
| $ | text | "attrib +r +s +h" |
Condition
all of them and filesize < 1KBIn plain words (Heuristic)
- The file must be smaller than 1KB (a cheap guard that skips large files).
- All patterns in the rule must match.
Test this rule in your browser
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Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: eb76bbd0-a722-4fec-a4a7-c48c70a1880b
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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