user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Linux/Mirai.BG!MTB
Backdoor:Linux/Mirai.BG!MTB - Windows Defender threat signature analysis

Backdoor:Linux/Mirai.BG!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Mirai.BG!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Mirai
Detection Type:Concrete
Known malware family with identified signatures
Variant:BG
Specific signature variant within the malware family
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Backdoor - Provides unauthorized remote access for Linux platform, family Mirai

Summary:

This is a detection for a backdoor from the Mirai botnet family, which targets Linux systems and IoT devices. The malware compromises devices, adding them to a botnet used for launching large-scale Distributed Denial-of-Service (DDoS) attacks and may download and execute additional malicious payloads.

Severity:
High
VDM Static Detection:
No specific strings found for this threat
YARA Rule:
rule Backdoor_Linux_Mirai_BG_2147818337_0
{
    meta:
        author = "threatcheck.sh"
        detection_name = "Backdoor:Linux/Mirai.BG!MTB"
        threat_id = "2147818337"
        type = "Backdoor"
        platform = "Linux: Linux platform"
        family = "Mirai"
        severity = "Critical"
        info = "MTB: Microsoft Threat Behavior"
        signature_type = "SIGNATURE_TYPE_ELFHSTR_EXT"
        threshold = "3"
        strings_accuracy = "High"
    strings:
        $x_1_1 = "zwnamsmqfhd" ascii //weight: 1
        $x_1_2 = "iklmhojd" ascii //weight: 1
        $x_1_3 = "cmnvmrOaYmnvhde" ascii //weight: 1
        $x_1_4 = "chmod +x shaker" ascii //weight: 1
        $x_1_5 = "npxXoudifFeEgGaACScs" ascii //weight: 1
    condition:
        (filesize < 20MB) and
        (3 of ($x*))
}
Known malware which is associated with this threat:
Filename: sync.x86
919608b6757d3564cb8b83add128fb797e198632c40720e07479bc683547a396
04/12/2025
→VirusTotal↓Download Sample
Filename: sync.arm4
97bf48e633d91ca8ec27e6b6f6361a50886eda635e99a60772a66f735d62a024
04/12/2025
→VirusTotal↓Download Sample
Filename: gang.arm5
c7608c4ce35682e5958130b4736cdec1117aa97cbb88ddce4f91c1736722308d
04/12/2025
→VirusTotal↓Download Sample
Filename: sync.mipsel
3a08fa170e111c4f0c05148c34a78edd1f4a35160ec1b6f237cda0b4f4eef22e
04/12/2025
→VirusTotal↓Download Sample
Filename: sync.arm6
5c16a921896aa31ef14ff936522fbef6fc7391409b027504b42ad862708c985e
04/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
1. Isolate the compromised device from the network immediately. 2. Identify and remove the malicious files and any associated persistence mechanisms (e.g., cron jobs, startup scripts). 3. A full system re-image from a known-good source is highly recommended. 4. Change all default credentials, apply security patches, and use a firewall to restrict access to management ports.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 01/12/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊